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от: Dreyfus Health Foundation
DHF, 205 East 64 Street, Suite 404
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York, NY 10021
E-mail:
Postmaster@thf.org
Fax
# 212-371-2776
Съдържание
НОВИНИ
MEDLINE INFORMATION
-
Early Diagnosis of
Cervical Cancer / Ранно диагностициране на рак на маточната шийка
-
Stray Dogs and
Echinococcosis Incidence / Бездомни кучета и ехинококоза
-
Control of Risk
Factors for Stroke / Контролиране на рисковите фактори за инсулт
-
Early Detection of
Tuberculosis and Related Diseases/ Ранно диагностициране на туберкулозата и
свързани с нея заболявания
Новини
На
17 ноември в Плевен се проведе еднодневна
среща-дискусия по здравни проблеми на Плевен с участието на представители на
Здравна фондация “Драйфус” - Ню Йорк, Фондация “Международно сътрудничество в
медицината” - Англия, Полското дружество по хигиена, Община Плевен, Районен
център по здравеопазване - Плевен, Хигиенно-епидемиологична инспекция - Плевен,
Висш медицински институт - Плевен, представители на фармацевтични фирми и
неправителствени организации.
Срещата бе ръководена от г-н Цветан Меченски -
заместник-кмет на град Плевен и г-н Ленин Грос - финансов директор на Здравна
фондация “Драйфус”.
Целта на срещата беше да се направи опит да се очертаят
приоритетните здравни проблеми, които могат да намерят решение със съвместните
усилия на цялата общност - здравни служители, градски власти, неправителствени
организации с прилагането на подхода, използван в програмата на Здравна
фондация “Драйфус” в програмата “Решаване на проблеми за по-добро здраве”.
Преди дискусиите бяха представени проекти, разработени в
рамките на програмата “Решаване на проблеми за по-добро здраве”: Превенция на
наркомании при подрастващите ( доц. Мария Александрова), Контрол на
хипертонията и ранна диагностика на глаукома ( д-р Камен Каменов и д-р Милена
Средкова), Стандартни протоколи при спешна помощ ( д-р Мая Джунова), Локална
скринингова програма за ранно диагностициране на рак на гърдата (доц. Т.
Делийски, д-р Георги Байчев, д-р Румен Стоянов).
Общото между представените на срещата проекти и тези
представяни на други срещи ( програма “Астма” - Плевен, просветна програма по
проблемите на полово-преносимите заболявания - Стара Загора, програма за
привличане на нови кръводарители - Ловеч и много други) е в търсене на решение
на здравни проблеми, формулирани в проектите. Някои от тях вече са излезли от
рамките на първоначалните намерения и са се превърнали в по-мащабни програми.
Но за всички проекти, разработени досега в рамките на
програма “Решаване на проблеми за по-добро здраве” досега е характерно едно:
разработилите проектите не биха постигнали целите си без подкрепата на колеги,
ръководители, местните власти, училищни ръководства, местните медии,
неправителствени организации и много други, оценили ефективността на подхода за
решаване на здравни проблеми.
Както беше подчертано и от Мадам Шийла Куин
(“Международно сътрудничество в медицината” Англия), г-н Ленин Грос (фондация
“Драйфус”) и г-н Ян Соботка (Полско дружество по хигиена) по време на
дискусиите, ако хората с различни професии и дейности обединят усилията си в
търсене на решение на здравните проблеми на местно ниво, има много по-големи
изгледи да решат тези проблеми.
Участниците в срещата идентифицираха десет най-важни
проблеми на Плевен:
1.Социалнозначими белодробни болести: ХОББ, астма,
туберкулоза.
2. Необходимост от по-активно включване на медицински
сестри в решаване на здравните проблеми на населението на Плевен и програми за
промоция на здравето.
3. Необходимост от опазване здравето на жената:
остеопороза, ранна диагностика на рак на гърдата и шийката на матката.
4. Социално-значими съдови заболявания: хипертония,
мозъчен инсулт, инфаркт на миокарда.
5. Злоупотреба с наркотици, алкохол и тютюнопушене.
6. Инциденти в детска възраст, влошено детско
стоматологично здраве.
7. Недостатъчно грижи за инвалидите и възрастните хора..
8. Глаукома: необходимост от ранна диагностика,
профилактика, лечение.
9.Проблеми с организирането на обща практика: липса на
опит; комуникация между лекуващ лекар и диагностични звена; информиране на обществеността
за предстоящите промени.
10. Необходимост от оздравяване на екологичната среда:
замърсяване на въздуха и питейната вода, бездомни кучета, недостатъчна
растителност.
Проекти по тези проблеми ще бъдат разработени на семинар
“Инициатива за по. добро здраве за Плевен”, който ще се проведе в Плевен.
От
18 до 20 ноември се проведе нов
семинар със студентите от Факултета по здравни грижи на ВМИ - Плевен. Около 40
участници, разпределени в пет групи, идентифицираха здравни проблеми, които
биха искали и могли да решат на работното си място. Помощ да формулират проблемите
и да намерят работещи решения им оказаха фасилитаторите Мадам Шийла Куин
(Англия), г-н Ленин Грос (САЩ), д-р Катаржина Брочек (Полша), г-н Ян Соботка
(Полша), г-жа Кристина Марин, г-н Валентин Пулук (Румъния) и доц. Гена
Грънчарова, д-р Анжелика Велкова (първа група), д-р Аспарух Георгиев, д-р Явор
Иванов (втора група), д-р Камен Каменов (трета група), д-р Милена Средкова
(четвърта група), доц. Мария Александрова и г-жа Янка Цветанова (пета група).
Разработени бяха проекти с разнообразна тематика: Здравка
Радославова - “Създаване на телефонна линия за консултиране на терминално
болни, диспансеризирани в ДОЗ - Велико Търново”, Наташа Митрова - “Приложение
на професионално-образователна програма за подобряване на мотивацията на
новоприетите студенти в Медицински колеж - Плевен”, д-р Стела Георгиева -
“Повишаване на нивото на знанията и интереса на студенти-медици от III курс по
дисциплината “Промоция на здравето”, Тинка Пенова -”Образователна програма за
изграждане на комуникативни учения при въвеждане на сестринския метод за
обгрижване на болните”, Тонка Попова - “Изграждане на умения и навици за работа
в център по семейно планиране и репродуктивно здраве у студенти в МК,
специалност ‘акушерки’”, д-р Ваня Бенкова - “Създаване на регионално бюро за
предлагане на квалифицирана помощ при обгрижване на болни в домашна обстановка
с цел избягване на наемане на некомпетентни лица от нуждаещите се”, Мария
Таскова - “Обучения на сестрите да поставят сестринска диагноза” , Маргарита Тодорова
- “Теоретична и практическа подготовка на студентите, специалност медицински
сестри от II курс в МК - Плевен за работа с ЕКГ апарат”, Жана Павловска -
“Съкращаване на предоперативния престой на болните, постъпващи за планови
операции в гинекологично отделение в ОРБ - Велико Търново”, Албена Константинова
- “Обучение на сестрите от интензивен сектор и пулмологично отделение на
Диспансер по белодробни болести - гр. Русе за постигане на взаимна
заменяемост”, Ваня Петрова -”Медицинска образователна програма за обучение на
болни с диабет тип II в района на Втора поликлиника - гр. Плевен за повишаване
качеството на живота на болните”, Валентина Йорданова - “Обособяване на сектор
“новородени” в гр. Мездра с цел намаляване на броя на новородените, превеждани
в по-големи здравни заведения”, Даниела Събева - “Провеждане на обучение по
прилагане на сестринска диагноза за старшите медицински сестри и наставниците
на студентите от II курс, специалност “медицинска сестра” в МК - Велико Търново
с цел подобряване на качеството на грижите за болния и обучението на студентите”,
Росица Алексиева - “Провеждане на медицински контрол върху качеството на
храната в детска млечна кухня в Белене за постигане на адекватно хранене на 100
деца до 3-годишна възраст”, Петя Тодорова - “Здравно-образователна програма за
туберкулозно болни”, Петранка Начева - “Здравно-профилактична програма за усвояване
на правилни стоматологични навици у деца от предучилищна възраст”, Цветанка
Ангелова - “Изграждане на практически умения и навици за самостоятелна работа
при студентите от специалност “медицински сестри от I курс на МК - Плевен”,
Теодора Георгиева - “Здравно-просветна програма за профилактика на
туберкулозата при болни и техните семейства”, Рени Цекова - “Въвеждане на
ускорен метод за откриване на ревматоиден фактор в серум на болни с ревматоиден
артрит”, д-р Станислав Витанов - “Програма за повишаване на двигателната
активност на студенти с наднормено тегло и/или понижена физическа активност от
ВМИ - Плевен, Красимира Дойнова - “Подобряване на сестринските и общите грижи
за инсултно болните от гр. Тетевен след изписването им от стационара”, Изабела
Георгиева - “Намаляване на кожните наранявания на децата от Дом “Майка и дете”
Плевен чрез въвеждане на топлинна обработка на бельото с апарат тип
“Каландър””, Надя Александрова - “Организиране на кабинет за функционална
диагностика на деца със сърдечно-съдови заболявания към Детски кардиологичен
кабинет - ВМИ - Плевен”, Анелия Димитрова - “Ранна профилактика на
зъбно-челюстните деформации при деца до 3-годишна възраст в IV педиатричен
участък на II поликлиника - Плевен”, Даринка Крачунова - “Организиране на
дневен стационар за деца на територията на Детска консултативна поликлиника на
ВМИ - Плевен”, Макрета Драганова - “Повишаване на степента на удоволетвореност
сред наставници и стажанти от специалността “Здравни грижи” от преддипломния
педагогически стаж чрез краткосрочни курсове за наставници”, Росица Димитрова -
“Повишаване на мотивацията за у служители на ВМИ - Плевен при провеждането на
цялостни профилактични прегледи”, Поля Дамянова - “Здравно-образователна
програма за болни с Меланома малигнум”, д-р Мариела Камбурова - “Подобрявяне
качеството на преддипломния стаж по управление на здравни грижи чрез периодични
тридневни курсове за старшите сестри-наставници”, Диана Иванова - “Провеждане
на здравно-образователна програма “Сексуално здраве и болести преносими по
полов път” с ученици от 10 класове в училищата в гр. Ловеч”, Димка Аврамова -
“Програма за обучение на близките на болни с прекаран мозъчен инсулт за
полагане на адекватни грижи в домашна обстановка”, Румяна Христова Коцева -
“Обучение Програма за обучение на близките на болни с прекаран мозъчен инсулт
за полагане на адекватни грижи в домашна обстановка”.
Предстоящи
мероприятия
На
3 март в хотел “Балкан” в Плевен
ще се се състои семинар за проследяване на работата по проекти, разработени на
семинарите “Решаване на проблеми за по-добро здраве” през януари 1998 и ноември
1998 г.
От
4 до 6 март в хотел “Балкан” ще
се проведе семинар “Инициатива за по-добро здраве за Плевен” от програмата
“Инициатива Кейп коуст - Решаване на проблеми за по-добро здраве”, организиран
от Здравна фондация “Драйфус” (САЩ), фондация “Сътрудничество в медицината”(Англия),
Районен център по здравеопазване - Плевен, община Плевен и клуб “Отворено общество”
- Плевен.
Early Diagnosis of
Cervical Cancer / Ранно диаг-ностициране на рак на матоЧната шийка
TI: [Preoccupation women have and should have in watching their health]
TO: Preocupaciones que las mujeres tienen y deben tener al vigilar su salud.
AU: Hollis-RS
SO: Ginecol-Obstet-Mex. 1997 Jun; 65: 243-6
AB: The American College of Obstetricians
and Gynecologists, since its beginning established three main objectives: 1. Education
of physicians, 2. Education for patients, 3. To improve health care for women.
The time has confirmed that through its programs the following has been
reached: 1. Diminution in maternal mortality, 2. Diminution in newborn
mortality, 3. Diminution in cervical cancer. The following is recommended:
Exercise, adequate diet, evaluation tests, early diagnosis, hormonal therapy
when recommended by the physician, for a prolonged, healthier, and more
productive life.
TI: A clinician’s guide to Pap smear interpretation.
AU: Mashburn-J; Scharbo-DeHaan-M
AD: Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, Ga., USA.
SO: Nurse-Pract. 1997 Apr; 22(4): 115-8, 124-7,
130 passim
AB: Cervical cancer is the seventh most
common cause of death from cancer in the United States and the most common
cause of cancer in women around the world. In the United States, in 1995 alone,
there were 15,800 cases of invasive cervical cancer that resulted in 4,800
deaths. The Papanicolaou (Pap) smear screen has helped in the identification of
preinvasive disease, and, in fact, the cure rate for cervical disease is
greater than 95% with early diagnosis using this test. This article discusses
the risk factors for cervical disease, the essentials of diagnosis, the comparison
of Pap smear classification systems, treatment guidelines, referral protocols,
and future screening techniques for cervical disease.
TI: [Epidemiology of cervical invasive cancer in the Gerona health area in 1980-1989. Cancer registry of Gerona]
TO: Epidemiologia del cancer invasor de cervix en el area sanitaria de Girona durante el periodo 1980-1989. Registro poblacional de cancer de Gerona.
AU: Garrido-Victoria-S; Font-Angel-I; Fabregat-Miguel-B; Quemada-Pau-V
AD: Instituto Catalan de Oncologia de Barcelona.
SO: Rev-Esp-Salud-Publica. 1997 Jan-Feb; 71(1): 19-26
AB: BACKGROUND: The goal of the present work is to carry out
a descriptive study about the impact of invasive cervical cancer in the area of
Gerona, Spain. METHODS: Using data from the population based cancer registry of
Gerona for the period 1980-89, several incidence rates were calculated.
Incidence trends, demographical distribution and survival according of different
variables were analyzed. RESULTS: The average age in which the disease appears
was 57 +/- 14 years; the most frequent histological type was the squamous cell
carcinoma; 51% of the cases were women born in Cataluna and the remaining
percentage corresponds to women from other regions and foreigners. At the
moment of diagnosis, el 36% of the cases were local, 34% were regional and 23%
disseminated. Crude, standardized and truncated (35-64 years) incidence rates,
during 1980 to 1989 were de 8.2, 6.2 and 13.7 cases x 105 women respectively.
According to the cumulative rate, 1 in 150 women will have this cancer by age
74. No increase of the trend has been found, however, a significative
subincidence has been observed in rural areas. 5-years survival rates is 48.5%
and was significantly associated with stage at diagnosis, but age was not.
CONCLUSION: From an international viewpoint, Gerona is a low incident area for
this tumour and no rising trend has been found. The subincidence in rural areas
may suggest a different exposition to risk factors, although certain aspects
such as accessibility to health care services, the defining of rural and urban
areas and the existence of migrations should be considered. Finally, the lower
survival rate with regard to other countries could be attributed to the
presence of more advanced stages, which emphasizes the importance that the
early diagnosis of this tumour has.
TI: Endometrial cancer, cervical cancer, and the adnexal mass.
AU: Fontaine-P
AD: Department of Family Practice and Community Health, University of Minnesota School of Medicine, Minneapolis, Minnesota, USA.
SO: Prim-Care. 1998 Jun; 25(2): 433-57
AB: Cancers of the endometrium, cervix, and
ovaries account for nearly 25,000 annual deaths among women in the United
States. In recent years, better understanding of the causes and risk factors
associated with gynecologic malignancies has contributed to more effective
screening and early diagnosis. Abnormal uterine bleeding, a palpable adnexal
mass, or vague abdominal complaints in women older than 40 can be signs of
cancer. Regular pelvic examination, combined with appropriate use of the
Papanicolaou’s smear, endometrial biopsy, transvaginal sonography, and other
tests, is recommended.
TI: [Human papillomaviruses and carcinogenesis of the uterine cervix: future prospects in the domain of detection and prevention]
TO: Papillomavirus humains et carcinogenese du col uterin: perspectives dans les domaines du depistage et de la prevention.
AU: Orth-G; Croissant-O
AD: Unite Mixte Institut Pasteur/INSERM U190, Institut Pasteur, Paris.
SO: Bull-Acad-Natl-Med. 1997 Oct; 181(7): 1365-92; discussion 1392-4
AB: It is now admitted that certain
genotypes of human papillomavirus ( HPV), mainly HPV types 16 and 18, play an
etiological role in the origin of the great majority of invasive carcinomas of
the uterine cervix and their intraepithelial precursors. Such an evidence has
modified our understanding of the natural history of cervical cancer and should
result in new approaches for the early diagnosis and prevention of precursor
lesions. Sensitive, specific and reliable HPV detection tests have been
progressively designed but their use as routine tests requires multicentric
studies, involving large series of women, to evaluate their usefulness in the
clinical management or the screening of patients and to establish their limits
and cost-effectiveness. It is already most likely that the association of HPV
detection tests to cervicovaginal cytology would increase the detection rate of
high-grade intraepithelial neoplasia and constitute a means for quality control
in cytology. The viral origin of most cancers of the uterine cervix paves the
way for their prevention by vaccination against the main oncogenic HPV
genotypes and provides hope for specific immunotherapy of associated neoplasia.
TI: [Screening
against cervical cancer. Experiences, attitudes and knowledge of women in the
county of Funen]
TO: Screening mod livmoderhalskraeft. Fynske kvinders erfaringer, holdninger og viden.
AU: Andreasen-LJ; Holund-B; Jeune-B; Sorensen-B
AD: Odense Universitetshospital, patologisk institut og gynaekologisk-obstetrisk afdeling.
SO: Ugeskr-Laeger. 1998 Jan 19; 160(4): 405-9
AB: Questionnaires on women’s attitudes and knowledge
of cervical screening in the County of Funen were mailed to a sample of 1505
attenders aged 23-59 years, stratified on age and residence. A high proportion
of attenders (80.4%) answered the questionnaire. Two-thirds of the women had
been informed about the screening program before they received the invitation
to participate. Generally the women were satisfied with the introduction to the
screening program. However, the majority of the attenders were not satisfied
with the way they received the result. They wanted the result no later than two
weeks after the test was done, and they wanted the result from their GP.
Independent of age and education the majority (about 90%) had a good general
knowledge (knew that the smear is taken from the cervix; that early diagnosis
is important; that cervix cancer can be treated). However the specific
knowledge was lower and significantly associated with education (e.g. 43%
versus 63% could identify the cervix on a drawing of the uterus among women
with respectively low and high levels of school education). Furthermore, the
majority were of the opinion that the test should be done more frequently than
every three years as recommended by the National Health Board.
Stray Dogs and Echinococcosis Incidence / Бездомни куЧета
и ехинококоза
TI: Public health aspects of cystic echinococcosis in the Arab countries.
AU: Dar-FK; Alkarmi-T
AD: Faculty of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates. mbio@medic.uaeu.ac.ae
SO: Acta-Trop. 1997 Sep 15; 67(1-2): 125-32
AB: Human cystic echinococcosis (CE) caused
by larval Echinococcus granulosus is a zoonosis of major public health
importance throughout the region comprising Arab North Africa and the Middle
East. Prevalence rates are determined by epizootiological factors related to
the size of stray dog population and its worm burden and to the infection rates
in the intermediate host reservoir livestock population. Socio-economic
development and socio-cultural practices are considered important determinants
in the continued transmission of the disease. The reasons why CE remains a
significant public health problem in the region are summarized.
TI: Coproantigen detection in dogs experimentally and naturally infected with Echinococcus granulosus by a monoclonal antibody-based enzyme-linked immunosorbent assay.
AU: Malgor-R; Nonaka-N; Basmadjian-I; Sakai-H; Carambula-B; Oku-Y; Carmona-C; Kamiya-M
AD: Unidad de Biologia Parasitaria, Facultad de Ciencias, Instituto de Higiene, Universidad de la Republica, Montevideo, Uruguay. ccarmona@chasque.apc.org
SO: Int-J-Parasitol. 1997 Dec; 27(12): 1605-12
AB: A sandwich ELISA for the detection of
Echinococcus granulosus coproantigen in formalin and heat-treated faecal
supernatants of dogs was developed. The assay used affinity-purified polyclonal
antibodies obtained from rabbits hyperimmunised with E. granulosus
excretory/secretory antigens and biotinylated monoclonal antibody EmA9 produced
against adult E. multilocularis somatic extract. The test was sensitive to 7 ng
and 2.3 ng of E. granulosus protein and carbohydrate/ml of faecal supernatant,
respectively. Thirteen helminth-free dogs were infected with different amounts
of E. granulosus protoscoleces and the presence of coproantigen was monitored
during the prepatent period until day 35 post-infection, when they were
necropsied. Faecal antigen levels started to rise above the normal range
between days 10 and 20 post-infection, and typically peaked at the end of the
experiment. All the dogs, bearing from 3 to 67,700 worms, showed positive
values in the ELISA during the prepatent period. One dog experimentally
infected with Taenia hydatigena metacestode and harbouring three worms, tested
positive only after the prepatent period at day 52. The test was applied to 98
stray dogs. The ELISA detected all of four dogs naturally infected with E.
granulosus, two dogs with patent infections of T. hydatigena and two dogs with
no cestode infections, showing a sensitivity of 100% and a specificity of 96%.
TI: [Hepatic hydatidosis in Madagascar: a case of autochthonous origin]
TO: Hydatidose hepatique a Madagascar: a propos d’un cas d’origine autochtone.
AU: Pecarrere-JL; Anandra-R; Raharisolo-C; Esterre-P; Huerre-M
AD: Service Chirurgie-Hopital Joseph Ravoahangy Andrianavalona (HJRA), Antananarivo, Madagascar.
SO: Arch-Inst-Pasteur-Madagascar. 1994; 61(2): 103-4
AB: Hydatid disease, due to the larval stage
of Echinococcus granulosus, is described for the second time at liver level, in
Madagascar. Even with a low level of endemic animal disease and an uncontrolled
population of stray dogs, the human parasitosis is very rare in Madagascar. It
is interesting to note that, since a hundred of years, the epidemiological
status of this Zoonosis has not really changed in the great island.
TI: Detection of Echinococcus coproantigens in stray dogs of northern Spain.
AU: Deplazes-P; Jimenez-Palacios-S; Gottstein-B; Skaggs-J; Eckert-J
AD: Institute of Parasitology, University of Zurich, Switzerland.
SO: Appl-Parasitol. 1994 Nov; 35(4): 297-301
AB: An enzyme-linked immunosorbent assay
(ELISA) was assessed for its suitability to diagnostically detect Echinococcus
coproantigens in fecal samples of dogs infected with E. granulosus. The specificity
of the test was determined by investigating fecal samples from 177
Echinococcus-free dogs infected with Taenia spp., 41 dogs with non-taeniid
helminths and 24 dogs free of helminth infections. An overall specificity of
97% was determined. The diagnostic sensitivity was in close association to the
worm burden of infected individuals: when dogs harboured less than 100 worms,
six from 21 samples (29%) were found to be positive in coproantigen ELISA,
whereas sensitivity was much higher (23 ELISA-positive from 25 samples = 92%)
when dogs had more than 100 worms. Despite the relatively low average
sensitivity (63%), the test enabled detection of more than 90% of the biomass
of adult Echinococcus present in the respective dog populations. Conclusively, coproantigen
detection allows diagnosis of most individual intestinal Echinococcus
infections relevant for the egg contamination of the environment and is
therefore a valuable tool to determine the relative prevalence of adult stage
E. granulosus prevalence in a given endemic area.
TI: The development of new foci of echinococcosis in northern Israel: prevalence in domestic animals.
AU: Furth-M; Hoida-G; Nahmias-J; Greenberg-Z; Barzilay-A; Goldsmith-RS; el-On-J
AD: Veterinary Services and Animal Health, Ministry of Agriculture, Hadera, Israel.
SO: J-Helminthol. 1994 Mar; 68(1): 45-7
AB: In a survey carried out in 1991-1992 in
the town of Yirka in Northern Israel, 49 dogs were examined for Echinococcus
granulosus infection and abattoir data, based on organs condemned for the
presence of parasites, was collected. The presence of E. granulosus by
arecoline test was demonstrated in 7 (14.2%) of the dogs examined, but not
parasites were found in the intestines of five stray dogs shot in the area. A
survey of sheep slaughtered in the local abattoir during a one-month period
revealed Echinococcus cysts in 10% of the 255 animals examined. No Echinococcus
parasites were detected in 21 dogs examined 3 months after the initiation of
praziquantel treatment. Echinococcosis seems to be a very serious public health
problem in Israel and a control programme needs to be given a high priority.
TI: Epidemiology of hydatidosis and echinococcosis in Theqar Province, southern Iraq.
AU: Molan-AL
AD: Department of
Biology, College of Science, University of Sanaa, Republic of Yemen.
SO: Jpn-J-Med-Sci-Biol.
1993 Feb; 46(1): 29-35
AB: Ninety-six cases of human hydatidosis
caused by Echinococcus granulosus were diagnosed from surgical records of
hospitals in Theqar Province, Southern Iraq during 1989. The infection rate was
higher in female than in male patients (56 versus 40 cases) and increased with
their age (maximum, 25.0% in a female group of 31-40 years and 32.5% in a male
group of 41-50 years). Many organs such as liver, lungs, peritoneum and spleen
were involved, but the liver was most frequently affected. Of 96 patients, 66
(68.8%) showed single organ-involvement and 30 (31.2%) multiple
organ-involvement. In 50 stray dogs surveyed for E. granulosus the prevalence
was found to be 56.0% with a mean worm burden of 5,300. The light infection
(1-200 worms) was found in 10.7% of the infected dogs, the medium (201-1,000
worms) in 21.4% and the heavy (over 1,000 worms) in 67.9%.
TI: Survey of echinococcosis in eastern Ethiopia.
AU: Mersie-A
AD: Dire Dawa Regional Veterinary Disease Investigation Laboratory, Ethiopia.
SO: Vet-Parasitol. 1993 Mar; 47(1-2): 161-3
AB: A total of 171 adult cattle and nine
stray dogs were examined for Echinococcus granulosus in eastern Ethiopia.
Prevalences of 20.5% and 22% were recorded in cattle and dogs, respectively.
Some of the factors involved in the transmission dynamics are discussed.
TI: Prevalence of human hydatid disease in northwestern Libya: a cross-sectional ultrasound study.
AU: Shambesh-MK; Macpherson-CN; Beesley-WN; Gusbi-A; Elsonosi-T
AD: Department of Biological Sciences, University of Salford, U.K.
SO: Ann-Trop-Med-Parasitol. 1992 Aug; 86(4): 381-6
AB: A total of 4103 people were screened in an ultrasound
survey of the prevalence of hydatid disease (Echinococcus granulosus) in five
areas of northwestern Libya; hydatid cysts were seen in 57 (1.4%), an overall
prevalence of approximately 2.0% when adjusted for the likelihood of the
occurrence of cysts in other sites in the body. All ultrasound-positive cases
were confirmed by dot-blot ELISA. The prevalence of hydatid cysts increased
with age, and differed between the sexes except in the five to 14 age group.
All diagnosed cases, even those with large cysts, were asymptomatic. This study
demonstrates the value of ultrasonography for screening field populations for
hydatid disease. The technique was well received locally, facilitating the
rapid collection of prevalence data from all ages and both sexes. Libyan people
keep guard dogs, but there is little direct human:dog contact. Many people own
a single dog, invariably kept outside and often chained up. Stray dogs are
common, roaming the countryside to scavenge sheep carcases etc., and such dogs could
be the main reservoir of E. granulosus in Libya. Because of the minimal direct
human:dog contact, transmission of hydatid disease in Libya is probably
indirect by ingestion of eggs from contaminated vegetables or drinking water.
TI: The prevalence of
Echinococcus granulosus in stray dogs in Iraq.
AU: Molan-AL; Baban-MR
AD: Department of Biology, College of Education, University of Salahddin, Arbil, Iraq.
SO: J-Trop-Med-Hyg. 1992 Apr; 95(2): 146-8
AB: The present paper records the prevalence
of Echinococcus granulosus in stray dogs of Al-Tamim (northern Iraq), Diala
(mid Iraq) and Theqar province (southern Iraq), where many people are infected
with hydatid disease. Of 150 dogs examined in three provinces in Iraq, 57 (38%)
were infected with E. granulosus. The prevalence of the worm was higher in the
dogs of Theqar province (56%) than in those of Al-Tamim (20%) and Diala
Provinces (38%). Infections were light (1-200 worms) in eight (14%) of the
infected dogs, medium (201-1000 worms) in 14 (24.6%) and high (over 1000 worms)
in 35 (61.4%). The mean worm burden was 1844 and the maximum number of worms
was 15,182 recorded in a male dog from Theqar province. The reasons for such a
high rate of infection in the dogs are discussed.
Control of Risk Factors
for Stroke / Контроли-ране на рисковите фактори за инсулт
TI: Risk factors for cerebrovascular stroke in a cohort of hypertensive patients]
TO: Factores de risco de acidente vascular cerebral numa coorte de hipertensos.
AU: Rocha-E; Gouveia-Oliveira-A; Cotter-A; Laranjeiro-A; Sousa-A; Mendes-F; Teixeira H; Galvao-J; Miguel-JM
AD: Centro de Estudos de Cardiologia Preventiva, INSA, Lisboa.
SO: Rev-Port-Cardiol. 1997 Jun; 16(6): 543-56, 508
AB: OBJECTIVES: To identify stroke risk factors in
hypertensive patients and the probability of stroke in relation to those risk
factors and follow-up. STUDY DESIGN: A cohort study (patients with high blood
pressure). MATERIAL AND METHODS: 707 hypertensive patients were studied
(Hypertension Register) in what concerns stroke incidence until 1992 (n = 126),
considering one case per individual. The following variables were analysed:
age, sex, body mass index (Quetelet), systolic and diastolic blood pressure,
heart rate, types of hypertension (JNC-IV), left ventricular hypertrophy,
changes in ST segment and T wave (Minnesota Code), fundi, angina pectoris,
heart failure, central nervous (neurological) disturbances, antihypertensive
treatment, smoking, serum potassium, serum sodium, blood urea, creatinine, uric
acid, blood sugar, diabetes and cholesterol, in the initial record.
Individually, in relation to the control of hypertension, the subjects were
classified according to the casual recording of normal blood pressure, the
absence of drug treatment, diastolic pressure > 114 mmHg and, at the end of
1992, according to survival, causes of death and follow-up. Stroke risk factors
have been identified by multivariate analysis (Cox regression model). The
survival probability (without stroke) was defined by Kaplan-Meier method.
RESULTS: It was possible to maintain the epidemiological surveillance, from
1975 to 1992, of 598 cases. From those, 109 hypertensive patients were victims
of at least one episode of non transient cerebral ischaemia, during their
follow-up of 10.5 years. From the characteristics studied, only five were
identified at risk factors. The adjusted relative risks and confidence
intervals (95% CI) were the following: age: 1.08 (1.06-1.10); diastolic
pressure > 114 mmHg: 1.96 (1.32-2.91); neurological disturbances 4.64
(2.99-7.2); diabetes: 2.57 (1.62-4.05) and left ventricular hypertrophy: 1.34
(1.13-1.58). CONCLUSIONS: As far as stroke is concerned: a) Age, diabetes, a
casual measurement of diastolic blood pressure > 114 mmHg and left ventricular
hypertrophy (electrocardiogram) were the risk factors identified; b) Prevention
should include blood pressure and diabetes control, although this disease has
shown more risk than a casual measurement of severe hypertension; c) Its
occurrence, in this model, has only partly been explained, therefore it has
become necessary to deepen the study of the risk profile.
TI: Stroke incidence and mortality correlated to stroke risk factors in the WHO MONICA Project. An ecological study of 18 populations.
AU: Stegmayr-B; Asplund-K; Kuulasmaa-K; Rajakangas-AM; Thorvaldsen-P; Tuomilehto-J
AD: Department of Medicine, University Hospital, Umea, Sweden.
SO: Stroke. 1997 Jul; 28(7): 1367-74
AB: BACKGROUND: The aim of the present study
was to determine the extent to which the variation in conventional risk factors
contributed to the variation in stroke incidence among these populations.
METHODS: Within the WHO MONICA Project, stroke has been recorded in 18
populations in 11 countries. In population surveys, risk factors for
cardiovascular diseases have been examined in the age group 35 to 64 years.
Over a 3-year period, 12,224 acute strokes were registered in men and women
within the same age range. RESULTS: The highest stroke attack rates were found
in Novosibirsk in Siberia, Russia, and Finland, with a more than three-fold
higher incidence than in Friuli, Italy. The mean diastolic blood pressure among
the populations differed by 15 mm Hg between Novosibirsk (highest) and Denmark
(lowest). In multiple regression analyses, the presence of conventional
cardiovascular risk factors (smoking and elevated blood pressure) explained 21%
of the variation in stroke incidence among the population in men and 42% in
women. In Finland, in China, and in men in Lithuania, the stroke incidence
rates were higher than expected from the population risk factor levels.
CONCLUSION: Prevalence of smoking and elevated blood pressure explain a
substantial proportion of the variation of stroke attack rates between
populations. However, other risk factors for stroke that were not measured in
the present study also contribute considerably to interpopulation differences
in stroke rates.
TI: [Stroke prevention with a high risk strategy of treating hypertension in patients after a transient ischemic attack]
TO: Schlaganfallpravention mittels einer Hochrisikostrategie der Hypertoniebehandlung bei Patienten nach einer transienten ischamischen Attacke.
AU: Brainin-M; Dachenhausen-A; Steiner-MM
AD: Donau-Universitat Krems, Maria Gugging. brainin@ins.at
SO: Wien-Med-Wochenschr. 1997; 147(2): 34-6
AB: High-risk strategies represent important
preventive measures that focus on individuals with a defined high risk of
suffering a chronic disease. They are valuable in addition to measures of
prevention within the general population. One example for a high-risk approach
for stroke prevention is the treatment of hypertension in individuals that have
previously suffered a transient ischemic attack (TIA). Data from the
Klosterneuburg Stroke Data Bank and other sources enable an estimate of 2000
TIAs occurring in Austria each year, half of them being hypertensives that are
mostly not treated or not sufficiently treated for their hypertension. A
high-risk programme that implies forced and effective treatment of hypertension
would prevent some 400 strokes or 3% of 16,000 first-ever strokes per year.
Costs for preventing one stroke by means of Betablocker agents would amount to
ATS 3500 and by ACE-inhibitor agents ATS 11,500, respectively. In addition to
general preventive measures, such a programme would have an important impact on
stroke incidence and public health.
TI: Ischemic stroke
after acute myocardial infarction. A population-based study.
AU: Mooe-T; Eriksson-P; Stegmayr-B
AD: Department of Internal Medicine, Norrland University Hospital, Umea, Sweden. thomas.mooe@medicin.umu.se
SO: Stroke. 1997 Apr; 28(4): 762-7
AB: BACKGROUND AND PURPOSE: Modern treatment
may have influenced the risk of stroke after myocardial infarction (MI). The purpose
of this study was to examine the incidence of ischemic stroke during the first
month after an acute MI in an unselected population, to identify predictors of
MI-related stroke, and to investigate the secular trend in MI-related stroke
incidence. METHODS: In this case-control study, from a population of
approximately 310000 25- to 74-year-old inhabitants, case subjects with a
stroke within 1 month after an MI were prospectively recorded in the
population-based Northern Sweden MONICA (Monitoring of Trends and Determinants
in Cardiovascular Disease) study from 1985 to 1994. The same number of control
subjects with an MI but without a stroke were matched for age, sex, and year
when MI occurred. RESULTS: One hundred twenty-four case subjects were recorded.
Fifty-one percent (63/124) of the strokes occurred within 5 days after onset of
MI. The odds ratios (ORs) of an MI-related stroke were for a history of
hypertension 1.7 (95% confidence interval [CI], 1.0 to 3.2), previous stroke
2.4 (CI, 1.0 to 6.1), chronic atrial fibrillation 3.0 (CI, 1.1 to 9.2), onset
of atrial fibrillation during the hospital stay 3.5 (CI, 1.4 to 10.1),
ST-segment elevation 2.4 (CI, 1.4 to 4.6), and anterior infarction 1.5 (CI, 0.9
to 2.6). In a conditional multiple logistic regression model, previous stroke
(OR, 2.8; CI, 1.1 to 7.6), chronic atrial fibrillation (OR, 3.8; CI, 1.3 to
11.0), new-onset atrial fibrillation (OR, 4.6; CI, 1.6 to 12.8), and ST-segment
elevation (OR, 3.4; CI, 1.6 to 7.4) were independent predictors of stroke. MIs
preceding stroke were larger and in 51% were located anteriorly. There was a
decrease in the incidence and event rate of MI-related stroke during the study
period (P < .01 and P < .05, respectively). CONCLUSIONS: The risk of
stroke is highest the first 5 days after MI. Only approximately half of the
strokes occurring the first month after an MI are preceded by an anterior MI.
The most important predictors of MI-related stroke are atrial fibrillation
(chronic or new onset), ST elevation, and a history of a previous stroke. There
is a long-term trend toward a lower incidence of MI-related stroke. These
findings have important implications concerning both the pathophysiology and
prevention of MI-related stroke.
TI: Distribution and determinants of cardiovascular events during 20 years of successful antihypertensive treatment.
AU: Alderman-MH; Cohen-H; Madhavan-S
AD: Albert Einstein College of Medicine, Department of Epidemiology & Social Medicine, Bronx, New York 10461, USA.
SO: J-Hypertens. 1998 Jun; 16(6): 761-9
AB: OBJECTIVE: To define the distribution and determinants of
cardiovascular disease events among participants undergoing long-term
antihypertensive therapy, and to stratify them into risk groups on the basis of
pretreatment clinical profiles. DESIGN: A prospective cohort study of
participants in a worksite-based antihypertensive treatment program in New York
city (1973-1994). PATIENTS: We studied 8690 systematically treated patients who
had at least 6 months of follow-up (average of 5.7 years) and, at entry, had
had a systolic blood pressure of > or = 160 mmHg or a diastolic blood
pressure of > or = 95 mmHg (after 1992 > or = 140/90 mmHg), or had been
being administered antihypertensive medication. MAIN OUTCOME MEASURES: Blood
pressure and incidence of morbid and mortal cardiovascular events. RESULTS:
Blood pressure control (to 140 +/- 3/87 +/- 7 mmHg) was achieved by the first
year and maintained through 18 years of therapy. In nearly 50,000 person-years
of follow-up, there were 468 cardiovascular disease events [myocardial
infarction including revascularization (282), strokes (93), congestive heart
failure (30) and other cardiovascular deaths (63)]. Deaths from cardiovascular
disease events accounted for 68% of all deaths. Myocardial infarction was most
common throughout, but congestive heart failure incidence surpassed stroke
incidence after 10 years. A scheme for risk stratification was constructed
after analysis of the independent association of baseline factors and incident
cardiovascular events. Upon the basis of ease of ascertainment and their
demonstrated associations with occurrence of cardiovascular disease during
treatment, we selected five pretreatment factors (history of heart attack,
stroke, diabetes, age > or = 55 years and pulse pressure > or = 60 mmHg)
to stratify patients into four groups. Those with no risk factor had a low risk
(n=2999), those with one had a moderate risk (3042), those with two had a high
risk (2237), and those with three or more had a very high risk (412). Overall,
the unadjusted rates of incidence of cardiovascular disease events per 1000
person-years for patients in very high and low risk groups differed by factors
of six and 14 for men and women, respectively. CONCLUSION: These results
demonstrate that long-term control of blood pressure can be achieved in a
general population. Nevertheless, cardiovascular disease events still accounted
for most morbidity and mortality among these ‘recovered’ hypertensive patients.
At entry, on the basis of readily identifiable characteristics, it was possible
to stratify patients according to likelihood of subsequent events occurring
despite control of blood pressure. This scheme could provide the basis for
targeting more aggressive therapy where the potential for further cardioprotection
is greatest.
TI: Incidence and risk factors for stroke in an occupational cohort: the PROCAM Study. Prospective Cardiovascular Muenster Study.
AU: Berger-K; Schulte-H; Stogbauer-F; Assmann-G
AD: Institute of
Atherosclerosis Research, University of Muenster, Germany.
bergerk@uni-muenster.de
SO: Stroke. 1998 Aug; 29(8): 1562-6
AB: BACKGROUND AND PURPOSE: The purpose of
this study was to assess the incidence of stroke and the magnitude of classic
stroke risk factors in an occupational cohort of white-collar and blue-collar
workers. METHODS: We studied a prospective cohort of 12 866 male employees,
aged 30 to 65 years, in 52 companies in northwestern Germany, with an average
follow-up of 7.2 years. Participants were free of self-reported stroke,
transient ischemic attack, and myocardial infarction at baseline. Physical
examination, blood tests, and a face-to-face interview to assess presence of
various risk factors were performed at the workplace. Follow-up was done by
standardized mailed questionnaire. Main outcome measure was first stroke
occurrence. RESULTS: Overall stroke incidence was 42.4 per 100000 person-years,
increasing from 10.1 per 100000 person-years in the age category 30 to 39 years
to 33.6, 80.6, and 159.2 per 100000 person-years in the age categories 40 to
49, 50 to 59, and 60 years and older, respectively. After adjustment for
potential confounders, the relative risks of total stroke associated with
systolic blood pressure < or = 120, 121 to 140, and > or = 141 mm Hg were
1.00 (reference), 2.99 (95% confidence interval, 0.85 to 10.49), and 5.56 (1.56
to 19.88). The risks associated with smoking status of never/past, < or = 20
cigarettes per day, and >20 cigarettes per day) were 1.00 (reference), 1.65
(0.62 to 4.42), and 3.56 (1.78 to 7.15), respectively. A history of
hypertension at baseline (yes versus no) was independently associated with a
relative risk of 2.37 (1.20 to 4.71) for total stroke and a history of diabetes
mellitus (yes versus no) with a risk of 2.21 (1.00 to 4.87). A comparison of
risk factor levels with a general population study revealed only small
differences. CONCLUSIONS: This occupational cohort had a 2-fold lower stroke
incidence than that observed in cohorts of the general population. In the
absence of a strong healthy-worker effect, moderate differences in behavioral
risk factors and a higher treatment rate for hypertension contribute to the
explanation of this favorable stroke incidence.
TI: Effects of a long-term hypertension control program on stroke incidence and prevalence in a rural community in northeastern Japan.
AU: Iso-H; Shimamoto-T; Naito-Y; Sato-S; Kitamura-A; Iida-M; Konishi-M; Jacobs-DR Jr; Komachi-Y
AD: Institute of Community Medicine, University of Tsukuba, Ibaraki-ken, Japan.
SO: Stroke. 1998 Aug; 29(8): 1510-8
AB: BACKGROUND AND PURPOSE: Although
randomized clinical trials have demonstrated the benefit of antihypertensive
treatment in preventing stroke, the effectiveness of community-based programs
is largely unknown. We investigated long-term community-based prevention
activities. METHODS: In rural northeastern Japan, people aged > or = 30
years numbered 3219 in the full intervention community and 1468 in the minimal
intervention community in 1965. Systematic blood pressure screening and health
education began in 1963. Stroke was registered through 1987. RESULTS: More than
80% of people aged 40 to 69 years were screened in both communities in the
1960s. One community charged for screening services after 1968, whereas the
other community intensified intervention; subsequently, screening rates and the
follow-up of hypertensive individuals declined in the minimal intervention
community, especially in men. In men, stroke incidence declined more (P <
0.001) in the full intervention (42% in the period 1970 to 1975, 53% in the
period 1976 to 1981, and 75% in the period 1982 to 1987) than in the minimal
intervention community (5% increase, 20% decrease, and 29% decrease,
respectively); in women, the stroke incidence declined about 45% to 65% in both
communities. Changes in stroke prevalence paralleled those in stroke incidence.
Trends in systolic blood pressure levels tend to explain the differential
stroke rates in men. CONCLUSIONS: Delivery of hypertension control services
through intensive, free, community-wide screening and health education was
effective in prevention of stroke for men in a community.
TI: Stroke and cholesterol: ‘enigma variations’?
AU: Stoy-NS
AD: St George’s Hospital, London.
SO: J-R-Coll-Physicians-Lond. 1997 Sep-Oct; 31(5): 521-6
AB: The relationship of raised serum
cholesterol to coronary atherosclerosis, the main pathophysiological substrate
for most ischaemic myocardial events, is clear. Strokes have a more complex
aetiology. Hypertension and smoking are strong risk factors for stroke, and
their elimination is effective in stroke prevention, but cholesterol has been
regarded historically as a poor predictor of stroke incidence. The reasons for
this are analysed and the relevance of serum cholesterol to stroke prevention
discussed.
TI: Identification and management of stroke risk in older people: a national survey of current practice in primary care.
AU: Coppola-WG; Whincup-PH; Walker-M; Ebrahim-S
AD: Department of Primary Care & Population Sciences, Royal Free Hospital School of Medicine, London, UK.
SO: J-Hum-Hypertens. 1997 Mar; 11(3): 185-91
AB: The current practice of stroke
prevention was assessed among UK general practitioners (GPs) using a postal
questionnaire. A random sample of 583 GPs (response rate 60%) in practice
throughout the UK was examined. Main outcomes were the reported practice in the
identification of stroke risk, management of hypertension, and use of other
interventions (particularly aspirin treatment) to reduce the risk of stroke.
Most respondents (451, 77%) reported that they specifically identified patients
at high risk of stroke. However, of these only 301 (67%) used more than one
major risk factor to do this and less than one-third used either age or pre-existing
cardiovascular disease as an indicator. Thresholds for drug treatment of
hypertension increased markedly with patient age with only 68%, 23% and 9% of
respondents reporting treating elevated systolic, diastolic and isolated
systolic pressures respectively, in accord with the British Hypertension
Society (BHS) guidelines for patients aged 70-79 years. Thresholds for blood
pressure (BP) treatment in older patients did not differ by region but were
higher among respondents who had been in general practice for more than 10
years. The value of aspirin in preventing stroke in patients with pre-existing
cardiovascular disease was recognized by almost all (560, 96%) respondents. The
results suggest that there is scope for increasing the benefits of stroke
prevention in primary care, by focusing on the management of patients at high
absolute risk, in whom the greatest treatment benefits are likely to be
obtained.
TI: Health outcomes associated with antihypertensive therapies used as first-line agents. A systematic review and meta-analysis.
AU: Psaty-BM; Smith-NL; Siscovick-DS; Koepsell-TD; Weiss-NS; Heckbert-SR; Lemai-tre-RN; Wagner-EH; Furberg-CD
AD: Cardiovascular Health Research Unit, Seattle, WA 98101, USA.
SO: JAMA. 1997 Mar 5; 277(9): 739-45
AB: OBJECTIVE: To review the scientific
evidence concerning the safety and efficacy of various antihypertensive
therapies used as first-line agents and evaluated in terms of major disease end
points. DATA SOURCES: MEDLINE searches and previous meta-analyses for 1980 to
1995. DATA SELECTION: We selected long-term studies that assessed major disease
end points as an outcome. For the meta-analysis, we chose placebo-controlled
randomized trials. For randomized trials using surrogate end points such as
blood pressure, we selected the largest studies that evaluated multiple drugs.
Where clinical trial evidence was lacking, we relied on information from
observational studies. DATA SYNTHESIS: Diuretics and beta-blockers have been
evaluated in 18 long-term randomized trials. Compared with placebo,
beta-blocker therapy was effective in preventing stroke (relative risk [RR],
0.71; 95% confidence interval [CI], 0.59-0.86) and congestive heart failure
(RR, 0.58; 95% CI, 0.40-0.84). The findings were similar for high-dose diuretic
therapy (for stroke, RR, 0.49; 95% CI, 0.39-0.62; and for congestive heart
failure, RR, 0.17; 95% CI, 0.07-0.41). Low-dose diuretic therapy prevented not
only stroke (RR, 0.66; 95% CI, 0.55-0.78) and congestive heart failure (RR,
0.58; 95% CI, 0.44-0.76) but also coronary disease (RR, 0.72; 95% CI,
0.61-0.85) and total mortality (RR, 0.90; 95% CI, 0.81-0.99). Although calcium
channel blockers and angiotensin-converting enzyme (ACE) inhibitors reduce
blood pressure in hypertensive patients, the clinical trial evidence in terms
of health outcomes is meager. For several short-acting dihydropyridine calcium
channel blockers, the available evidence suggests the possibility of harm.
Whether the long-acting formulations and the nondihydropyridine calcium channel
blockers are safe and prevent major cardiovascular events in patients with
hypertension remains untested and therefore unknown. CONCLUSION: Until the
results of large long-term clinical trials evaluating the effects of calcium
channel blockers and ACE inhibitors on cardiovascular disease incidence are
completed, the available scientific evidence provides strong support for the
current national guidelines, which recommend diuretics and beta-blockers as
firstline agents and low-dose therapy for all antihypertensive agents.
TI: Risk factors for stroke due to cerebral infarction in young adults.
AU: You-RX; McNeil-JJ; O’Malley-HM; Davis-SM; Thrift-AG; Donnan-GA
AD: Department of Neurology, Austin and Repatriation Medical Centre, University of Melbourne, Heidelberg, Vic., Australia.
SO: Stroke. 1997 Oct; 28(10): 1913-8
AB: BACKGROUND AND PURPOSE: Stroke in the
young is particularly tragic because of the potential for a lifetime of
disablement. More than 10% of patients with stroke due to cerebral infarction
are aged 55 years or younger. While a number of studies have addressed the
issue of stroke mechanism in the young, quantitation of risk factors has rarely
been undertaken. Given the importance of risk factor assessment in primary
prevention, we aimed to assess this using case-control methodology in a
hospital-based series and community-based control subjects. METHODS: A total of
201 consecutive patients with first-onset stroke due to cerebral infarction
aged 15 to 55 years (mean, 45.5 years) were accrued from four teaching
hospitals during 1985 to 1992 and compared with their age- and sex-matched
neighborhood controls. Information concerning potential risk factor exposure
status was collected by structured questionnaire at interview. Stroke risks
were estimated by calculating the odds ratios with multivariate logistic
regression. RESULTS: Significantly increased risk of stroke was found among
those with diabetes (odds ratio, 11.6 [95% confidence intervals, 1.2 to
115.2]), hypertension (6.8 [3.3 to 13.9]), heart disease (2.7 [1.1 to 6.4]),
current cigarette smoking (2.5 [1.3, 5.0]), and long-term heavy alcohol
consumption (> or = 60 g/d) (15.3 [1.0 to 232.0]). However, heavy alcohol
ingestion (> or = 60 g) within 24 hours preceding stroke onset was not a risk
factor (0.9 [0.3 to 3.4]). CONCLUSIONS: Diabetes, hypertension, heart disease,
current smoking, and long-term heavy alcohol consumption are major risk factors
for stroke in young adults. Given that the majority of these factors are either
correctable or modifiable, prevention strategies may have the potential to
reduce the impact of stroke in this age group.
TI: Secular trends in stroke mortality in African Americans: the role of urbanization, diabetes and obesity.
AU: Gillum-RF
AD: Centers for Disease Control and Prevention, National Center for Health Statistics, Hyattsville, MD 20782, USA.
SO: Neuroepidemiology. 1997; 16(4): 180-4
AB: The decline in stroke mortality rates in
African Americans has slowed to that seen in the 1960s; rates remain higher
than in European Americans. Rates are higher in the southeastern US and in
non-metropolitan areas. Adverse trends and patterns in diabetes, obesity, and
heart disease prevalence are possible explanations. Unless new, effective
prevention programs are introduced in African American communities, stroke
mortality rates will decline slowly if at all. The best chance to increase the
rate of decline in stroke mortality rates in African Americans may be to
redouble efforts to achieve the goals for the year 2000. Community and patient
education on improving diet, increasing exercise, further improving detection
and control of hypertension, using aspirin in stroke prevention and active
control of stroke risk factors in diabetics must be stressed.
TI: Fatty acid dietary intake and the risk of ischaemic stroke: a multicentre case-control study. UFA Study Group.
AU: Ricci-S; Celani-MG; Righetti-E; Caruso-A; De-Medio-G; Trovarelli-G; Romoli-S; Stragliotto-E; Spizzichino-L
AD: Centro di Coordinamento IST-Italia, Ospedale Silvestrini, Perugia, Italy. istitaly@unipg.it
SO: J-Neurol. 1997 Jun; 244(6): 360-4
AB: A low dietary intake of unsaturated
fatty acids has been found in male patients with stroke as compared with
controls in Italy, and a high consumption of meat has been associated with an
increased risk of stroke in Australia. We present a case-control study,
comparing the unsaturated and saturated fatty acids content of red cell
membranes (which reflects the dietary intake of saturated and unsaturated fats)
in 89 patients with ischaemic stroke and 89 controls matched for age and sex.
In univariate analysis, besides hypertension, atrial fibrillation, ischaemic
changes in ECG and hypercholesterolaemia, stroke patients showed a lower level
of oleic acid (P = 0.000), but a higher level of eicosatrienoic acid (P =
0.009). Conditional logistic regression (dependent variable; being a case)
showed that the best model included atrial fibrillation, hypertension, oleic
acid and eicosatrienoic acids. These results confirm a possible protective role
of unsaturated fatty acids against vascular diseases; however, we did not find
any difference in the content of omega3 acids, which have been considered in
the past to protect against coronary heart disease. We conclude that the
preceding diet of patients with ischaemic stroke may be poor in unsaturated
fatty acids (namely, oleic acid), and this defect is independent of other
vascular risk factors. Only further studies will show whether changes in diet
and/or supplement of unsaturated fatty acids might reduce the incidence of
ischaemic stroke.
TI: Is diastolic hypertension an independent risk factor for stroke in the presence of normal systolic blood pressure in the middle-aged and elderly?
AU: Nielsen-WB; Lindenstrom-E; Vestbo-J; Jensen-GB
AD: The Copenhagen City Heart Study, Rigshospitalet, Denmark.
SO: Am-J-Hypertens. 1997 Jun; 10(6): 634-9
AB: In a prospective population-based study
from the Copenhagen City Heart Study, the role of diastolic blood pressure as
an independent risk factor of stroke, in the presence of normal systolic blood
pressure, was assessed in 6,545 subjects aged 50 to 80 years. Follow-up was 12
years. Subjects were divided into various blood pressure categories according
to both diastolic and systolic blood pressure. The risk of stroke was assessed
using a multivariate Cox proportional hazards model, taking into account
various cardiovascular risk factors (age, sex, smoking, diabetes mellitus, body
mass index, and levels of serum cholesterol). After adjustment for risk
factors, only subjects with elevated systolic blood pressure had a
significantly increased risk of future stroke. The risk of stroke according to
blood pressure categories further reflected increasing levels of pulse pressure,
with the highest risk of stroke in subjects with the greatest pulse pressure.
We conclude that systolic blood pressure is a better predictor of stroke than
is diastolic blood pressure, and question whether diastolic blood pressure, in
the presence of normal systolic blood pressure, is an independent risk factor
for stroke in the middle-aged and elderly.
TI: Science, medicine, and the future. Hypertension.
AU: Brown-MJ
AD: Clinical Pharmacology Unit, University of Cambridge, Addenbrooke’s Hospital. mjb14@medschl.cam.ac.uk
SO: BMJ. 1997 Apr 26; 314(7089): 1258-61
AB: The abundance of drugs now available for
treating hypertension, and evidence that small reductions in blood pressure reverse
the associated risk of stroke have shifted clinical concerns away from
hypertension. However, we do not understand the cause of hypertension in 95% of
patients, fail to achieve a normal blood pressure in 50% of patients, and are
unable fully to reverse the cardiac and vascular changes that predate the
diagnosis and treatment of hypertension. Consequently, hypertension remains the
commonest cause of strokes in Britain and of renal failure in the United
States. Essential hypertension is a polygenic disease whose understanding can
now be advanced through molecular genetic analyses. Several different syndromes
are likely to be recognised; most will be due to interactions between genetic
and environmental factors, but there are also likely to be further monogenic
syndromes in families with multiple affected members. Recognition of these
syndromes will permit accurate genetic prediction of prognosis and optimal
treatment and perhaps lead to new and more powerful classes of antihypertensive
treatment.
TI: A prospective study of body mass index, weight change, and risk of stroke in women.
AU: Rexrode-KM; Hennekens-CH; Willett-WC; Colditz-GA; Stampfer-MJ; Rich-Edwards-JW; Speizer-FE; Manson-JE
AD: Division of Preventive Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA. kmrexrode@bics.bwh.harvard.edu
SO: JAMA. 1997 May 21; 277(19): 1539-45
AB: OBJECTIVE: To examine the associations
of body mass index (BMI) and weight change with risk of stroke in women.
SETTING AND DESIGN: Prospective cohort study among US female registered nurses
participating in the Nurses’ Health Study. PARTICIPANTS: A total of 116759
women aged 30 to 55 years in 1976 who were free from diagnosed coronary heart
disease, stroke, and cancer. MAIN OUTCOME MEASURE: Incidence of ischemic
stroke, hemorrhagic stroke (subarachnoid or intraparenchymal hemorrhage), and
total stroke. RESULTS: During 16 years of follow-up, 866 total strokes
(including 403 ischemic strokes and 269 hemorrhagic strokes) were documented.
In multivariate analyses adjusted for age, smoking, postmenopausal hormone use,
and menopausal status, women with increased BMI (> or =27 kg/m2) had
significantly increased risk of ischemic stroke, with relative risks (RRs) of
1.75 (95% confidence interval [CI], 1.17-2.59) for BMI of 27 to 28.9 kg/m2;
1.90 (95% CI, 1.28-2.82) for BMI of 29 to 31.9 kg/m2; and 2.37 (95% CI,
1.60-3.50) for BMI of 32 kg/m2 or more (P for trend<.001), as compared with
those with a BMI of less than 21 kg/m2. For hemorrhagic stroke there was a nonsignificant
inverse relation between obesity and hemorrhagic stroke, with the highest risk
among women in the leanest BMI category (P for trend=.20). For total stroke the
RRs were somewhat attenuated compared with those for ischemic stroke but
remained elevated for women with higher BMI (P for trend<.001). In
multivariate analyses that also adjusted for BMI at age 18 years, weight gain
from age 18 years until 1976 was associated with an RR for ischemic stroke of
1.69 (95% CI, 1.26-2.29) for a gain of 11 to 19.9 kg and 2.52 (95% CI,
1.80-3.52) for a gain of 20 kg or more (P for trend<.001), as compared with
women who maintained stable weight (loss or gain <5 kg). Although weight
change was not related to risk of hemorrhagic stroke (P for trend=.20), a direct
relationship was observed between weight gain and total stroke risk (P for
trend<.001). CONCLUSIONS: These prospective data indicate that both obesity
and weight gain in women are important risk factors for ischemic and total
stroke but not hemorrhagic stroke. The relationship between obesity and total
stroke depends on the distribution of stroke subtypes in the population.
TI: Serum creatinine concentration and risk of cardiovascular disease: a possible marker for increased risk of stroke.
AU: Wannamethee-SG; Shaper-AG; Perry-IJ
AD: Department of Primary Care and Population Sciences, Royal Free Hospital School of Medicine, London, UK.
SO: Stroke. 1997 Mar; 28(3): 557-63
AB: BACKGROUND AND PURPOSE: Elevated serum
creatinine has been associated with increased mortality in hypertensive
persons, the elderly, and patients with myocardial infarction or stroke in whom
cardiovascular disease is the major cause of death. We have examined the
relationship between serum creatinine concentration and the risk of major ischemic
heart disease and stroke events and all-cause mortality in a general population
of middle-aged men. METHODS: We present a prospective study of middle-aged men
(aged 40 to 59 years) drawn from 24 British towns who have been followed up for
an average of 14.75 years. Data on serum creatinine were available for 7690 men
in whom there were 287 major stroke events, 967 major ischemic heart disease
events, and 1259 deaths from all causes during follow-up. RESULTS: The median
serum creatinine concentration was 98 micromol/L (95% range, 76 to 129
micromol/L). Stroke risk was significantly increased at levels above 116
micromol/L (90th percentile) even after adjustment for a wide range of
cardiovascular risk factors (relative risk [RR], 1.6; 95% CI, 1.1 to 2.1; >
116 micromol/L versus the rest). Risk of a major ischemic heart disease event
was significantly increased at or above 130 micromol/L (97.5 percentile), but
this was attenuated after adjustment (RR, 1.2; 95% CI, 0.8 to 1.7; > or =
130 micromol/L versus the rest). There was a weak but significant positive
association between diastolic blood pressure and creatinine concentration.
However, elevated creatinine concentration (> or = 116 micromol/L) was
associated with a significant increase in stroke in both normotensive and
hypertensive men. All-cause mortality and overall cardiovascular mortality were
significantly increased only above the 97.5 percentile, and no significant
association was seen with cancer or other noncardiovascular mortality.
CONCLUSIONS: A high serum creatinine concentration within the normal range is a
marker for increased risk of cerebrovascular disease in both normotensive and
hypertensive subjects. These findings support the evidence indicating that
subtle impairment of renal function is a factor for increased risk of stroke
and suggest mechanisms in the pathogenesis of stroke that warrant further
investigation.
TI: Case-control study of stroke and the quality of hypertension control in northwest England.
AU: Du-X; Cruickshank-K; McNamee-R; Saraee-M; Sourbutts-J; Summers-A; Roberts-N; Walton-E; Holmes-S
AD: School of Epidemiology and Health Sciences, University of Manchester Medical School.
SO: BMJ. 1997 Jan 25; 314(7076): 272-6
AB: OBJECTIVE: To examine the risk of stroke
in relation to quality of hypertension control in routine general practice
across an entire health district. DESIGN: Population based matched case-control
study. SETTING: East Lancashire Health District with a participating population
of 388,821 aged < or = 80. SUBJECTS: Cases were patients under 80 with their
first stroke identified from a population based stroke register between 1 July
1994 and 30 June 1995. For each case two controls matched with the case for age
and sex were selected from the same practice register. Hypertension was defined
as systolic blood pressure > or = 160 mm Hg or diastolic blood pressure >
or = 95 mm Hg, or both, on at least two occasions within any three month period
or any history of treatment with antihypertensive drugs. MAIN OUTCOME MEASURES:
Prevalence of hypertension and quality of control of hypertension assessed by
using the mean blood pressure recorded before stroke) and odds ratios of stroke
(derived from conditional logistic regression). RESULTS: Records of 267 cases
and 534 controls were examined; 61% and 42% of these subjects respectively were
hypertensive. Compared with non-hypertensive subjects hypertensive patients
receiving treatment whose average pre-event systolic blood pressure was
controlled to < 140 mm Hg had an adjusted odds ratio for stroke of 1.3 (95%
confidence interval 0.6 to 2.7). Those fairly well controlled (140-149 mm Hg),
moderately controlled (150-159 mm Hg), or poorly controlled (> or = 160 mm
Hg) or untreated had progressively raised odds ratios of 1.6, 2.2, 3.2, and 3.5
respectively. Results for diastolic pressure were similar; both were
independent of initial pressures before treatment. Around 21% of strokes were
thus attributable to inadequate control with treatment, or 46 first events
yearly per 100,000 population aged 40-79. CONCLUSIONS: Risk of stroke was
clearly related to quality of control of blood pressure with treatment. In
routine practice consistent control of blood pressure to below 150/90 mm Hg
seems to be required for optimal stroke prevention.
TI: Coffee consumption in hypertensive men in older middle-age and the risk of stroke: the Honolulu Heart Program.
AU: Hakim-AA; Ross-GW; Curb-JD; Rodriguez-BL; Burchfiel-CM; Sharp-DS; Yano-K; Abbott-RD
AD: Division of Biostatistics and Epidemiology, University of Virginia School of Medicine,Charlottesville 22908, USA.
SO: J-Clin-Epidemiol. 1998 Jun; 51(6): 487-94
AB: OBJECTIVE: To examine the association between
coffee consumption and the development of stroke in men at high risk for
cardiovascular disease. METHODS: Coffee intake was observed from 1965 to 1968
in a cohort of men enrolled in the Honolulu Heart Program with follow-up for
incident stroke over a 25-year period. Subjects were 499 hypertensive men
(having systolic or diastolic blood pressures at or above 140 and 90 mm Hg,
respectively) in older middle-age (55 to 68 years) when follow-up began. Past
and current cigarette smokers were excluded from follow-up. RESULTS: In the
course of follow-up, 76 men developed a stroke. After age-adjustment, risk of
thromboembolic stroke increased significantly with increases in coffee
consumption (P = 0.002). No relationships were observed with hemorrhagic stroke.
When adjusted for other factors, the risk of thromboembolic stroke was more
than doubled for men who consumed three cups of coffee per day as compared to
nondrinkers of coffee (RR = 2.1; 95% CI = 1.2-3.7). CONCLUSIONS: Although in
need of further confirmation, consumption of coffee appears to be positively
associated with an increased risk of thromboembolic stroke in hypertensive men
in older middle-age. Findings suggest that it may be prudent to advise older
middle-aged men with hypertension who consume large amounts of coffee to
consider reducing their coffee intake.
TI: Depressive symptoms and increased risk of stroke mortality over a 29-year period.
AU: Everson-SA; Roberts-RE; Goldberg-DE; Kaplan-GA
AD: Human Population Laboratory, Public Health Institute, Berkeley, Calif, USA. severson@umich.edu
SO: Arch-Intern-Med. 1998 May 25; 158(10): 1133-8
AB: BACKGROUND: Several lines of evidence
indicate that depression is importantly associated with cardiovascular disease
end points. However, little is known about the role of depression in stroke
mortality. METHODS: This study examined the association between depressive
symptoms and stroke mortality in a prospective study of behavioral, social, and
psychological factors related to health and mortality in a community sample of
6676 initially stroke-free adults (45.8% male; 79.1% white; mean age at
baseline, 43.4 years) from Alameda County, California. Depressive symptoms were
assessed by the 18-item Human Population Laboratory Depression Scale. Cox
proportional hazards regression models were used to evaluate the impact of
depressive symptoms after controlling for age, sex, race, and other
confounders. RESULTS: A total of 169 stroke deaths occurred during 29 years of
follow-up. Reporting 5 or more depressive symptoms at baseline was associated
with increased risk of stroke mortality, after adjusting for age, sex, and race
(hazard ratio, 1.66; 95% confidence interval, 1.16-2.39; P<.006). This
association remained significant after additional adjustments for education,
alcohol consumption, smoking, body mass index, hypertension, and diabetes
(hazard ratio, 1.54; 95% confidence interval, 1.06-2.22; P<.02).
Time-dependent covariate models, which allowed changes in reported depressive
symptoms and risk factor levels during follow-up, revealed the same pattern of
associations. CONCLUSIONS: This population-based study provides the strongest
epidemiological evidence to date for a significant relationship between
depressive symptoms and stroke mortality. These results contribute to the
growing literature on the adverse health effects of depression.
TI: [Control of blood
pressure: a key factor in prevention]
TO: Blutdruck-Kontrolle: Ein Paradebeispiel der Pravention.
AU: Suter-PM; Hasler-E; Vetter-W
AD: Medizinische Poliklinik, Universitatsspital, Zurich.
SO: Schweiz-Rundsch-Med-Prax. 1998 Jan 28; 87(5): 145-9, 152-6
AB: An increase in blood pressure represents
one of the most common conditions in daily medical practice. Many different
factors are regarded as risk factors for a stroke. Hypertension, cardiac
diseases, atrial fibrillation, smoking, diabetes mellitus, alcohol consumption
and dyslipidemia are central stroke risk factors. The pathophysiological
importance of these different risk factors is discussed. Hypertension
represents the most prevalent risk factor for stroke in the general population.
A decrease in blood pressure leads in general to a reduction of the risk.
Besides an optimal pharmacological control of blood pressure miscellaneous
non-pharmacological means should be implemented in any patient with high blood
pressure. The most important non-pharmacological means of blood pressure
control are discussed in the context of stroke risk.
TI: Actual blood pressure control: are we doing things right?
AU: Coca-A
AD: Department of Internal Medicine, Hospital Clinic, University of Barcelona, Spain.
SO: J-Hypertens-Suppl. 1998 Jan; 16(1): S45-51
AB: CORRELATION BETWEEN BLOOD PRESSURE AND
RISK OF CARDIOVASCULAR EVENTS: The goal of antihypertensive treatment is to
reduce morbidity and mortality from cardiovascular disease associated with high
blood pressure values. Epidemiological studies have demonstrated a direct
correlation between the risk of stroke or coronary events and blood pressure
values, and randomized controlled trials with antihypertensive drugs have shown
that an average fall in diastolic blood pressure (DBP) of 5-6 mmHg [or in
systolic blood pressure (SBP) of 10 mmHg] reduces the relative risk of
cerebrovascular events by 40% and of coronary events by 15%. Thus, it would
seem appropriate to achieve the maximum tolerated blood pressure reduction,
although there is still no consensus on how far blood pressure should be
lowered. PROBLEMS OF BLOOD PRESSURE CONTROL: Because the reduction in the
absolute risk for a given level of blood pressure is higher in elderly patients
and in those with multiple risk factors, the 1996 World Health Organization
report recommends lowering blood pressure to below 140/90 mmHg in elderly
patients, and suggests that it might be desirable to achieve blood pressure
values of 120-130/80 mmHg in young patients with mild hypertension. Recent
surveys in primary care centers in Spain show blood pressure control rates
(blood pressure < 140/90 mmHg) ranging from 13 to 26%. These insufficient
rates denote the particular difficulty of controlling SBP in an elderly
population of patients with essential hypertension mainly treated in
monotherapy schedules. The picture is similar in other developed countries. In
a sample of 14,000 patients from Western European countries the Cardiomonitor
survey showed control rates of 43% for DBP (< 90 mmHg) and 35% for SBP (<
140 mmHg). No more than 24% of treated hypertensive patients achieve the target
(blood pressure < 140/90 mmHg) in the USA, and no more than 27% (DBP < 90
mmHg) in New Zealand. Preliminary reports from the Hypertension Optimal
Treatment study indicate that in most patients combined therapy is required to
achieve target blood pressure. Fixed combinations of synergistic antihypertensive
drugs may help to improve both drug compliance and blood pressure control.
TI: Public perception of stroke warning signs and knowledge of potential risk factors.
AU: Pancioli-AM; Broderick-J; Kothari-R; Brott-T; Tuchfarber-A; Miller-R; Khoury-J; Jauch-E
AD: Department of Emergency Medicine, University of Cincinnati, OH 45267-0769, USA.Arthur.Pancioli@uc.edu
SO: JAMA. 1998 Apr 22-29; 279(16): 1288-92
AB: CONTEXT: Decreasing the time from stroke
onset to hospital arrival and improving control of stroke risk factors depend
on public knowledge of stroke warning signs and risk factors. OBJECTIVE: To
assess current public knowledge of stroke warning signs and risk factors.
DESIGN: A population-based telephone interview survey using random digit
dialing conducted in 1995. SETTING: The Greater Cincinnati, Ohio, metropolitan
area, the population of which is similar to that of the United States overall
in age, sex, percentage of blacks, and economic status. PARTICIPANTS:
Respondents with age, race, and sex that matched the population of patients
with acute stroke. MAIN OUTCOME MEASURES: Knowledge of risk factors for stroke
and warning signs of stroke as defined by the National Institute of
Neurological Disorders and Stroke. RESULTS: Telephone calls were made to 17634
households, which yielded 2642 demographically eligible individuals. Interviews
were completed by 1880 respondents (response rate, 71.2%). A total of 1066
respondents (57%) correctly listed at least 1 of the 5 established stroke
warning signs, and of all respondents, 1274 (68%) correctly listed at least 1
of the established stroke risk factors. Of the respondents, 469 (57%) of 818
respondents with a history of hypertension listed hypertension, 142 (35%) of
402 respondents who were current smokers listed smoking, and 32 (13%) of 255
respondents with diabetes listed diabetes as a risk factor for stroke. Compared
with those younger than 75 years, respondents 75 years or older were less
likely to correctly list at least 1 stroke warning sign (60% vs 47%, respectively;
P<.001) and were less likely to list at least 1 stroke risk factor (72% vs
56%, respectively; P<.001). CONCLUSION: Considerable education is needed to
increase the public’s awareness of the warning signs and risk factors for
stroke. Respondents with self-reported risk factors for stroke are largely
unaware of their increased risk. The population at greatest risk for stroke,
the very elderly, are the least knowledgeable about stroke warning signs and
risk factors.
TI: Leisure-time physical activity and ischemic stroke risk: the Northern Manhattan Stroke Study.
AU: Sacco-RL; Gan-R; Boden-Albala-B; Lin-IF; Kargman-DE; Hauser-WA; Shea-S; PaikMC
AD: Department of Neurology, Sergievsky Center, Columbia University College of Physicians and Surgeons and School of Public Health, New York, NY, USA. RLS1@Columbia.edu
SO: Stroke. 1998 Feb; 29(2): 380-7
AB: BACKGROUND AND PURPOSE: Physical
activity reduces the risk of premature death and cardiovascular disease, but
the relationship to stroke is less well studied. The objective of this study
was to investigate the association between leisure-time physical activity and
ischemic stroke in an urban, elderly, multiethnic population. METHODS: The
Northern Manhattan Stroke Study is a population-based incidence and
case-control study. Case subjects had first ischemic stroke, and control
subjects were derived through random-digit dialing with 1:2 matching for age,
sex, and race/ethnicity. Physical activity was recorded through a standardized
in-person interview regarding the frequency and duration of 14 activities over
the 2 prior weeks. Conditional logistic regression was used to calculate odds
ratios (OR) and 95% confidence intervals after adjustment for medical and
socioeconomic confounders. RESULTS: Over 30 months, 369 case subjects and 678
control subjects were enrolled. Mean age was 69.9 +/- 12 years; 57% were women,
18% whites, 30% blacks, and 52% Hispanics. Leisure-time physical activity was
significantly protective for stroke after adjustment for cardiac disease,
peripheral vascular disease, hypertension, diabetes, smoking, alcohol use,
obesity, medical reasons for limited activity, education, and season of
enrollment (OR = 0.37; 95% confidence interval=0.25 to 0.55). The protective
effect of physical activity was detected in both younger and older groups, in
men and women, and in whites, blacks, and Hispanics. A dose-response
relationship was shown for both intensity (light-moderate activity OR = 0.39;
heavy OR = 0.23) and duration (<2 h/wk OR = 0.42; 2 to <5 h/wk OR = 0.35;
> or =5 h/wk OR = 0.31) of physical activity. CONCLUSIONS: Leisure-time
physical activity was related to a decreased occurrence of ischemic stroke in
our elderly, multiethnic, urban subjects. More emphasis on physical activity in
stroke prevention campaigns is needed among the elderly.
TI: Risk factors for ischemic stroke in a Russian community: a population-based case-control study.
AU: Feigin-VL; Wiebers-DO; Nikitin-YP; O’Fallon-WM; Whisnant-JP
AD: Department of Health Sciences Research, Mayo Clinic and Mayo Foundation, Rochester, Minn 55905, USA.
SO: Stroke. 1998 Jan; 29(1): 34-9
AB: BACKGROUND AND PURPOSE: This study was
conducted to determine the risk factors for ischemic stroke in a defined
Russian population. METHODS: Our data are based on a population-based
case-control study of 237 patients with first-ever ischemic stroke and 237 age-
and sex-matched controls. Logistic regression methods for matched pairs were
used to estimate the relative risk for the variables studied. RESULTS: In a
multivariate analysis, hypertension, left ventricular hypertrophy on
electrocardiography, ischemic heart disease, mitral valve disease, current
cigarette smoking, and high body mass index were significant and independent
risk factors for ischemic stroke in this Russian community. CONCLUSIONS: The
significant risk factors for ischemic stroke in Novosibirsk are similar to
those from other populations and cohorts. This study, the first of stroke risk
factors in Russia, has implications for clinical practice and the planning of
stroke prevention in the population.
TI: Ischemic stroke and use of estrogen and estrogen/progestogen as hormone replacement therapy.
AU: Petitti-DB; Sidney-S; Quesenberry-CP Jr; Bernstein-A
AD: Kaiser Permanente Medical Care Program, Southern California, USA. diana.b.petitti@kp.org
SO: Stroke. 1998 Jan; 29(1): 23-8
AB: BACKGROUND AND PURPOSE: Information
about the risk of stroke in current postmenopausal hormone users is limited.
METHODS: In this case-control study, women aged 45 to 74 years hospitalized
with a fatal or nonfatal stroke in any of 10 Northern California Kaiser
Permanente facilities during the period November 1991 to November 1994 were
identified as cases. Controls were selected at random from female Health Plan
members. Data regarding use of estrogen plus progestogen or estrogen alone were
obtained in interviews. RESULTS: The analysis was based on nonproxy responses
from 349 cases of ischemic stroke and 349 matched control subjects. After
adjustment for confounders, the odds ratio for ischemic stroke in current
hormone users was 1.03 (95% confidence interval, 0.65 to 1.65). The odds ratios
for ischemic stroke in current hormone users showed no clear trend of
increasing or decreasing risk in relation to duration of hormone use. The odds
ratio for ischemic stroke in past hormone users was 0.84 (95% confidence
interval, 0.54 to 1.32). CONCLUSIONS: In this study postmenopausal hormone use
was not associated with an increase or decrease in the risk of ischemic stroke,
a finding that is consistent with the body of literature on this topic.
TI: Strokes in the
elderly: prevalence, risk factors & the strategies for prevention.
AU: Dalal-PM
AD: Department of Neuroscience, Medical Research Centre Lilavati Hospital, Mumbai.
SO: Indian-J-Med-Res. 1997 Oct; 106: 325-32
AB: Current demographic trends suggest that
the Indian population will survive through the peak years of occurrence of
stroke (age 55-65 yr) and stroke-survivors in the elderly with varying degree
of residual disability, will be a major medical problem. The available data
from community surveys from different regions of India for ‘hemiplegia’
presumed to be of vascular origin indicate a crude prevalence rate in the range
of 200 per 100,000 persons. Thus, the anticipated costs of rehabilitation of
stroke-victims will pose enormous socio-economic burden on our meagre
health-care resources, similar to what is now faced by industrialised nations
in the West. Therefore, prevention of strokes at any age should be our main
strategy in national health planning. Among all risk factors for strokes,
hypertension is one of the most important and treatable factor. Community
screening surveys, by well defined WHO protocol, have shown that nearly 15 per
cent of the urban population is ‘hypertensive’ (160/95 mm Hg or more). Though
high blood pressure has the highest attributable risk for stroke, there are
many reasons such as patient’s compliance in taking medicines and poor follow
up in clinical practice that may lead to failure in reducing stroke mortality.
In subjects who have transient ischaemic attacks (TIAs), regular use of
antiplatelet agents like aspirin in prevention of stroke is well established.
It is also mandatory to prohibit tobacco use and adjust dietary habits to
control body weight, and associated conditions like diabetes mellitus etc.,
should be treated. It is advisable to initiate community screening surveys on
well defined populations for early detection of hypertension and TIAs. Primary
health care centres should be the base-stations for these surveys because data
gathered from urban hospitals will not truly reflect the crude prevalence rates
for the community to design practical prevention programmes.
TI: Predictive value of home blood pressure measurement in relation to stroke morbidity: a population-based pilot study in Ohasama, Japan.
AU: Sakuma-M; Imai-Y; Tsuji-I; Nagai-K; Ohkubo-T; Watanabe-N; Sakuma-H; Satoh-H; Hisamichi-S
AD: Department of Environmental Health Sciences, Tohoku University School of Medicine, Sendai, Japan.
SO: Hypertens-Res. 1997 Sep; 20(3): 167-74
AB: We investigated the utility of home
blood pressure measurements for determining the risk of stroke. We also
analyzed the relationship between home blood pressure and the incidence of
stroke. Home blood pressure and screening blood pressure measurements were
obtained from 1,789 residents (aged 40 yr or older) of a rural Japanese
community. Blood pressure was measured at home with a semiautomatic device. A
mean (+/-SD) of 23.0 +/- 7.5 measurements were made for each subject. Subjects
without a history of stroke and who were not receiving medication for
hypertension (n = 1,256) were prospectively followed up for 4.4 +/- 2.1 yr.
Subjects were subdivided into quintiles according to their baseline blood
pressure. The association between the baseline blood pressure and the incidence
of the first-ever stroke was examined with the Cox proportional hazards
regression model, adjusted for age and sex. The lowest risk of stroke morbidity
occurred in the subjects in the third quintile for home systolic blood pressure
(117-123 mmHg) and in those in the second quintile for home diastolic blood
pressure (66-70 mmHg). The subjects in the fifth quintiles for home systolic
(> or = 133 mmHg) and diastolic blood pressure (> or = 81 mmHg) had a
significantly increased risk of stroke morbidity. The subjects in the first and
the second quintiles for home systolic blood pressure and those in the first
quintile for home diastolic blood pressure tended to have an increased risk as
compared with subjects in the lowest risk groups, although this increase was
not statistically significant, indicating two possibilities: a trend toward a
J-shaped relationship or no-decrease in risk of the first-ever stroke in
subjects with home blood pressure level less than 123/70 mmHg. This
relationship was not observed for screening blood pressure. We conclude that
home blood pressure measurements can provide additional prognostic information
to that obtained from blood pressure measurement in a medical environment.
Early Detection of
Tuberculosis and Related Diseases / Ранно диагностициране на туберкулозата и
свързани с неЯ заболЯваниЯ
TI: Early detection
of Mycobacterium tuberculosis in BACTEC cultures by li-gase chain reaction.
AU: Tortoli-E; Lavinia-F; Simonetti-MT
AD: Laboratorio di Microbiologia e Virologia, Ospedale di Careggi, 50139 Florence,Italy. tortoli@dada.it
SO: J-Clin-Microbiol. 1998 Sep; 36(9): 2791-2
AB: The LCx Mycobacterium tuberculosis
ligase chain reaction system (Abbott Diagnostic Division, Abbott Park, Ill.)
was used to detect M. tuberculosis in 150 consecutive BACTEC vials on the day
on which a positive growth index (GI) was recorded. By LCx, M. tuberculosis DNA
was detected in BACTEC vials on average 2.6 days before the presence of
acid-fast bacilli could be confirmed by microscopic examination. A total of 106
of 108 M. tuberculosis isolates were detected without centrifugation from
bottles presenting very low GIs (average, 70; median, 33). No false-positive
result was obtained from nontuberculous mycobacteria or from isolates with
contaminants.
TI: Tuberculous meningitis in adults: an eleven-year review.
AU: Hosoglu-S; Ayaz-C; Geyik-MF; Kokoglu-OF; Ceviz-A
AD: Department of Infectious Diseases, Faculty of Medicine, Dicle University, Diyarbakir, Turkey.
SO: Int-J-Tuberc-Lung-Dis. 1998 Jul; 2(7): 553-7
AB: OBJECTIVE: To assess the presentation,
diagnosis and outcome of patients with tuberculous meningitis (TBM). DESIGN:
The medical records of adults with TBM who were treated at Dicle University
Hospital between January 1985 and October 1996 were reviewed. RESULTS: In
total, 101 patients were identified and stratified
according
to the stage of disease at presentation. The mean duration of the symptoms of
TBM before admission was 12 days. The majority of patients had headaches
(96.0%), fever (91.1%), nuchal rigidity (91.1%), vomiting (81.2%), meningism
(79.2%) and abnormal mental state (72.3%). The mean cerebrospinal fluid (CSF)
leukocyte count was 0.38 x 10(9)/L, protein 1410 mg/L, glucose 2.0 mmol/L and
CSF/blood glucose ratio 27%. Cranial computerized tomography (CT) scans were
performed during the course of TBM in 64 patients. The results were normal in
6.3%, and abnormal in 93.7% of the cases; the most frequent abnormality found
on CT was hydrocephalus (45.3%). Forty-four patients (43.5%) died. Minor
neurological sequelae developed in 11 patients (10.9%), major sequelae in 10 (9.9%),
and 31 patients (30.7%) completely recovered. There was no follow-up for five
patients (5.0%). Five factors were important in predicting fatal outcome: stage
III at presentation, low glucose levels, low CSF/blood glucose ratio, high
protein levels, and CT scanning abnormality. CONCLUSION: TBM is a very critical
disease in terms of fatal outcome and permanent sequelae: 43.5% of the patients
died and only 30.7% experienced complete recovery. Early treatment may reduce
fatal outcome and morbidity.
TI: Role of antigen specific circulating immune complexes in diagnosis of tuber-culosis.
AU: Gupta-I; Jain-A; Singh-NB; Chaturvedi-V; Agarwal-SK
AD: Post Graduate Department of Microbiology, King George’s Medical College, Lucknow, India.
SO: Int-J-Tuberc-Lung-Dis. 1998 Jun; 2(6): 456-61
AB: SETTING: Tuberculosis is a public health
problem worldwide. Early accurate diagnosis in patients with active disease is
essential to reduce morbidity and mortality. Conventional methods for detection
of Mycobacterium tuberculosis have given disappointing results. OBJECTIVE: To
evaluate the utility of detection of M. tuberculosis antigen in circulating
immune complexes (CIC) for the diagnosis of tuberculosis. METHOD: Eighty-four
clinically diagnosed cases of mainly extra-pulmonary tuberculosis, 85 patients
with diseases other than tuberculosis and 30 healthy controls, were evaluated
for the presence of antigen of M. tuberculosis in CIC in serum using sandwich
enzyme linked immunosorbent assay (ELISA). RESULTS: In total, 22 out of 84
cases were positive for culture on Lowenstein Jensen medium; 76.5% (n = 65) of
the clinically diagnosed patients (including 20 culture-positive cases) were
found to be positive by ELISA. The difference in mean absorbance values of
ELISA in cases of tuberculosis was significantly higher than in controls. The
sensitivity of ELISA was 90.9% and the specificity was 93.04%. CONCLUSION:
Detection of M. tuberculosis antigen in CIC by ELISA has potential as a useful
diagnostic tool for the rapid diagnosis of tuberculosis, especially
extra-pulmonary forms where results of conventional methods of diagnosis are
disappointing.
TI: Tuberculosis in children and adolescents: California, 1985 to 1995.
AU: Lobato-MN; Cummings-K; Will-D; Royce-S
AD: University of California, Department of Pediatrics, San Francisco, USA.
SO: Pediatr-Infect-Dis-J. 1998 May; 17(5): 407-11
AB: OBJECTIVES: To describe the epidemiology
and clinical characteristics of tuberculosis (TB) among children and
adolescents and to define children at risk for TB. SETTING: 4607 children 0 to
14 years of age and 1615 adolescents 15 to 19 years of age reported with TB in
California. METHODS: We analyzed surveillance data reported to the California
Department of Health Services TB Control Branch from 1985 through 1995.
RESULTS: TB cases increased 22% among children 0 to 4 years of age and 66%
among children 5 to 14 from 1985 through 1995. Case rates were highest among
children 0 to 4 years of age (13/ 100000 children), but declined from 1993 to 1995,
except for black children 0 to 4 years of age. Minority children 0 to 14 years
of age had case rates 6- to 34-fold higher than did white children. Pulmonary
TB was the most common site of disease in all age groups (71 to 82%). TB
meningitis was most common in children 0 to 4 years of age (5%). Most children
(64%) did not have cultures done; however, among culture-proved cases
isoniazid-resistant Mycobacterium tuberculosis was isolated in 7%. Adolescents
were more likely to have cavitary pulmonary disease (24%), to be foreign-born
(78%) or homeless (4%) and to have an isoniazid-resistant strain isolated (13%)
than were children 0 to 14 years of age (P < 0.05). CONCLUSIONS: TB in
children and adolescents increased substantially in the mid-1980s and early 1990s.
Pediatric TB remains a serious health problem, especially among minority
children and adolescents. Our findings indicate that TB control programs need
improved strategies to prevent infection and detect disease in this population.
TI: Tuberculosis mortality in notified cases from 1989-1995 in Birmingham.
AU: Bakhshi-SS; Hawker-J; Ali-S
AD: Birmingham Health Authority, Edgbaston.
SO: Public-Health. 1998 May; 112(3): 165-8
AB: This is a retrospective descriptive study
examining medical records of notified cases of tuberculosis in Birmingham, UK,
who died before completion of treatment, plus notified cases identified at
postmortem. During the study period, 1989-1995, there were a total of 2088
notifications of tuberculosis of which 75 (3.6%) died. This case-fatality rate
is lower than that reported from earlier studies, a finding which may be due to
improved ascertainment, earlier diagnosis and improved treatment in recent
years. Forty-five deaths (60%) were in males and 30 (40%) in females. The
median age at death was 66 y. Forty-five deaths (60%) were among the white
ethnic group, 21 (28%) among persons of Indian sub-continent origin, 4 (5.3%)
among Black Caribbeans and 5 (6.6%) among the other ethnic groups. Case-fatality
rates were significantly higher (P < 0.01) in caucasians (9.4%) than in
Asians (1.5%) and only half of this difference was explained by the age of
those affected. Twenty-two (29%) cases were confirmed by a positive sputum
smear and a further 23 (31%) by a positive sputum culture. Eighteen (24%) cases
also had histological confirmation. Twelve (16%) cases were identified on
autopsy. The case fatality rate in respiratory disease was significantly higher
(RR = 1.19, P > 0.05) than in non-respiratory disease. As delay in diagnosis
is likely to be the main contributing factor leading to death, a high index of
suspicion of tuberculosis is needed when investigating elderly patients with
general chronic illness, especially if there are prolonged respiratory
symptoms. Early diagnosis will reduce mortality as the disease rapidly responds
to treatment.
TI: Tuberculosis and pregnancy—a provincial study (1990-1996).
AU: Doveren-RF; Block-R
AD: Department of Tuberculosis Control, GGD Zeeland, Goes, Netherlands.
SO: Neth-J-Med. 1998 Mar; 52(3): 100-6
AB: BACKGROUND: Several studies suggest that
physiological changes in pregnancy mimic early symptoms of tuberculosis. If
true, this could influence the diagnostic delay of the disease and the outcome
of pregnancy. METHODS: From the register of the Public Health Centre, all
female patients with culture-proven tuberculosis aged between 22 and 35 years
in the Province of Zeeland in the period 1990-1996 have been identified. Data
on symptoms, delay, therapy and outcome of the pregnancy have been collected.
Risk factors for an early diagnosis have been identified. RESULTS: In nearly
one-third of the patients with tuberculosis (n = 14), it has been possible to
make a presumptive diagnosis on the basis of a chest X-ray only. Patients with
tuberculosis associated with pregnancy are more likely than their non-pregnant
counterparts to have non-specific symptoms which are, at most, moderate (p =
0.002). Diagnosis has also been hampered by non-cavernous, smear-negative
presentation of the disease. In addition, women with pulmonary tuberculosis
associated with pregnancy are more likely to postpone having a chest X-ray
taken (p = 0.02), which contributes to the delay. CONCLUSION: As the clinical
features of tuberculosis in pregnancy are moderate, a high index of clinical
suspicion is necessary. Nevertheless, the favourable outcome suggests that (if
all risk factors are taken into account) lung tuberculosis in pregnant women in
The Netherlands can be discovered sufficiently early within the limits of the
current screening programme to prevent harm to mother or child.
TI: Few opportunities found for tuberculosis prevention among the urban poor.
AU: Bock-NN; McGowan-JE Jr; Blumberg-HM
AD: Department of Medicine, Emory University School of Medicine and Grady Memorial Hospital, Atlanta, Georgia 30303, USA.
SO: Int-J-Tuberc-Lung-Dis. 1998 Feb; 2(2): 124-9
AB: SETTING: Grady Memorial Hospital, a
public hospital in Atlanta, Georgia, a city with high rates of tuberculosis.
OBJECTIVE: To identify specific points of contact with the public health system
where high risk individuals could receive tuberculin testing and isoniazid
preventive therapy. DESIGN: Patient interviews and medical chart reviews of
tuberculosis patients diagnosed in hospital between October 1993 and December
1994. RESULTS: In total 151 tuberculosis patients participated: 80% were male,
89% African American, the mean age was 40; 50% were HIV co-infected. Three
fourths reported no regular source of medical care. The only potential public
health sites at least one third of the patients had encountered in the five
years prior to tuberculosis diagnosis were correctional institutions (44%) and
public hospital in-patient wards (37%). Duration of incarceration was six
months or more in only 13% of patients. Of 108 (71%) patients who had
identified substance abuse problems, only 25% had been in treatment programs.
CONCLUSION: We conclude that most tuberculosis cases in this community occurred
in persons with poor access to health care and few opportunities for public
health intervention. Tuberculosis prevention for this high risk population can
best be accomplished by focusing efforts on early case identification,
completion of therapy and contact investigations.
TI: Noncompliance with directly observed therapy for tuberculosis. Epidemiology and effect on the outcome of treatment.
AU: Burman-WJ; Cohn-DL; Rietmeijer-CA; Judson-FN; Sbarbaro-JA; Reves-RR
AD: Department of Public Health, Danver Health and Hospitals, CO 80204, USA.
SO: Chest. 1997 May; 111(5): 1168-73
AB: STUDY OBJECTIVES: To describe the
epidemiology and clinical consequences of noncompliance with directly observed
therapy (DOT) for treatment of tuberculosis. DESIGN: Retrospective review.
SETTING: An urban tuberculosis control program that emphasizes DOT. PATIENTS:
All patients treated with outpatient DOT from 1984 to 1994. MEASUREMENTS AND
RESULTS: We defined noncompliance as follows: (1) missing > or = 2 consecutive
weeks of DOT; (2) prolongation of treatment > 30 days due to sporadic missed
doses; or (3) incarceration for presenting a threat to public health. Poor
outcomes of therapy were defined as a microbiologic or clinical failure of
initial therapy, relapse, or death due to tuberculosis. Fifty-two of 294
patients (18%) who received outpatient DOT fulfilled one or more criteria for
noncompliance. Using multivariate logistic regression, risk factors for
noncompliance were alcohol abuse (odds ratio, 3.0; 95% confidence interval, 1.2
to 7.5; p = 0.02) and homelessness (odds ratio, 3.2; 95% confidence interval,
1.5 to 7.2; p = 0.004). Noncompliant patients had poor outcomes from the
initial course of therapy more often than compliant patients: 17 of 52 (32.7%)
vs 8 of 242 (3.3%); relative risk was 9.9; 95% confidence interval was 4.5 to
21.7 (p < 0.001). CONCLUSIONS: In an urban tuberculosis control program,
noncompliance with DOT was common and was closely associated with alcoholism
and homelessness. Noncompliance was associated with a 10-fold increase in the
occurrence of poor outcomes from treatment and accounted for most treatment
failures. Innovative programs are needed to deal with alcoholism and
homelessness in patients with tuberculosis.
TI: Two-year follow-up of directly-observed intermittent regimens for smear-positive pulmonary tuberculosis in China.
AU: Cao-JP; Zhang-LY; Zhu-JQ; Chin-DP
AD: The Anti-Tuberculosis Institute of Hebei Province, People’s Republic of China.
SO: Int-J-Tuberc-Lung-Dis. 1998 May; 2(5): 360-4
AB: SETTING: The
tuberculosis component of the Infectious and Endemic Disease Control Project in
the People’s Republic of China is the largest single tuberculosis control
project in the world using directly-observed therapy and standardized
intermittent regimens. OBJECTIVE: To determine the two-year relapse and
mortality rates following completion of treatment. DESIGN: A prospective cohort
study of 649 cases cured in this project. The 306 new and 343 retreatment cases
were treated under field conditions with 2H3R3Z3S3/4H3R3 and
2H3R3Z3E3S3/6H3R3E3, respectively. Following treatment completion, two sputum
samples were collected every six months for two years and examined for
acid-fast bacilli. Causes of death were identified. RESULTS: The two-year
relapse rates for new and retreatment cases were 3.3% and 5.6%, respectively.
Retreatment cases with delayed sputum conversion had a greater risk for
subsequent relapse. The two-year mortality rate for new and retreatment cases
was 3.3% and 8.5%, respectively. The higher mortality rate in retreatment cases
was not attributable to relapse of disease, but rather to non-infectious
sequelae of tuberculosis. CONCLUSION: The use of directly-observed intermittent
regimens is effective in permanently removing infectious tuberculosis cases
from the community.
TI: The tuberculosis epidemic. Scientific challenges and opportunities.
AU: Ginsberg-AM
AD: Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, USA. ag73i@nih.gov
SO: Public-Health-Rep. 1998 Mar-Apr; 113(2): 128-36
AB: One in every three people on Earth is
believed to be infected with Mycobacterium tuberculosis, leading to seven to
eight million cases of active tuberculosis (TB) per year and approximately
three million deaths annually. this epidemic, like those of most infectious
diseases, creates scientific challenges and opportunities as it raises the
demand for public health solutions. The currently available weapons for
fighting TB are inadequate. The ultimate goal of biomedical TB research is to
lessen the public health burden of this disease by developing improved
diagnostic, therapeutic, and intervention strategies. Achieving this goal
requires a base of knowledge about the biology of M. tuberculosis and related
mycobacteria, their interactions with human and animal hosts, and the nature of
an effective host-protective immune response. TB researchers are applying this
accumulating base of knowledge to developing rapid, easy-to-use diagnostic
assays appropriate for low-as well as high-income countries, improving the
current complicated therapeutic regimen, identifying potential new drugs to
combat multidrug-resistant TB, and creating more effective vaccines.
TI: Treatment of pulmonary tuberculosis.
AU: van-Loenhout-Rooyackers-JH; Veen-J
AD: GGD Regio Nijmegen, Netherlands.
SO: Neth-J-Med. 1998 Jul; 53(1): 7-14
AB: Recently the duration of treatment for pulmonary
tuberculosis in The Netherlands was shortened from nine to six months. A six
months regimen containing isoniazid (H), rifampicin (R) and pyrazinamid (Z)
daily for two months, followed by H and R daily for another four months
(2HRZ/2HR) has been proven effective for the treatment of pulmonary
tuberculosis, provided the cause is a fully susceptible strain of M.
tuberculosis. Worldwide there is an increase in drug-resistant tuberculosis.
Since at the start of treatment susceptibility tests often are not available, a
fourth drug must be added in the intensive phase. Ethambutol is the drug
preferred. This means that one always starts with 4 drugs unless the patient is
a contact of an index-case with proven susceptibility and one is sure that he
will be compliant or the patient is infected in the past before 1940, he
received never tuberculostatic drugs and one is sure that there is no exogenous
reinfection. If the patient has been treated previously and anti-tuberculosis
drug resistance is likely, treatment regimens should contain at least two drugs
with which he has not been treated before, while a fifth drug routinely must be
added in the intensive phase. Amikacin is preferred, since there is no
cross-resistance to streptomycin. Consensus on the duration of treatment for
extra-pulmonary tuberculosis has not yet been reached, but basically the
principles for treatment are the same. This is also true for HIV infected
tuberculosis patients. In some serious clinical situations (meningitis,
miliary, spine tb) duration of treatment still is 9-12 months. Early
involvement of the public health nurse of the municipal health department (GGD)
is necessary to ensure patient compliance and treatment supervision.
TI: Costs of implementing a tuberculosis control plan: a complete education module that uses a train-the-trainer concept.
AU: Trovillion-E; Murphy-D; Mayfield-J; Dorris-J; Traynor-P; Fraser-V
AD: Quality Management Department, Barnes-Jewish Hospital at Washington University Medical Center, BJC Health System, St. Louis, MO, USA.
SO: Am-J-Infect-Control. 1998 Jun; 26(3): 258-62
AB: BACKGROUND: Tuberculosis once was
thought to be nearly eradicated, but there was a 14% increase in cases of
tuberculosis between 1985 and 1993, although decreases were observed in both
1994 and 1995. To reduce spread of this disease, health care workers must be
familiar with tuberculosis, its signs, symptoms, and modes of transmission. In
October 1994 the Centers for Disease Control and Prevention issued “Guidelines
for Preventing the Transmission of Mycobacterium tuberculosis in Health Care
Facilities.” The combination of persistently high tuberculosis case rates, the
development of multidrug-resistant tuberculosis, the new Centers for Disease
Control and Prevention recommendations, and Occupational Safety and Health
Administration enforcement has mandated large-scale training in health care
facilities. METHODS: A tuberculosis control plan was developed and the
train-the-trainer concept was selected after review of the hospital’s
tuberculosis risk assessment, staff members requiring training, and available
teaching staff. The training program that was developed included tuberculosis
pathology and transmission, national and local epidemiology, placement and
evaluation of skin tests, and an algorithm to assist in determining when
isolation is indicated. RESULTS: One hundred forty-six trainers were trained in
4 days. During the next quarter, 66% (1989/3000) of staff members requiring
instruction were trained. The total cost involved in development and training
was approximately $26,000 and involved 1600 person-hours. CONCLUSION:
Tuberculosis training should be directed toward high-risk areas, including
intensive care units, emergency departments, and acute medicine wards.
Large-scale training is time-consuming and expensive. Evaluation remains
difficult. To facilitate compliance, pretest and posttest results should be
provided, linked to Occupational Safety and Health Administration compliance
and quality indicators for the hospital.
TI: An outbreak of multi-drug-resistant tuberculosis in a London teaching hospital.
AU: Breathnach-AS; de-Ruiter-A; Holdsworth-GM; Bateman-NT; O’Sullivan-DG; Rees-PJ; Snashall-D; Milburn-HJ; Peters-BS; Watson-J; Drobniewski-FA; French-GL
AD: Department of Microbiology, St Thomas’s Hospital, London, UK.
SO: J-Hosp-Infect. 1998 Jun; 39(2): 111-7
AB: We describe the epidemiology and control
of a hospital outbreak of multi-drug-resistant tuberculosis (MDR-TB). A human
immu-nodeficiency virus (HIV)-negative patient with drug-sensitive tuberculosis
developed MDR-TB during a period of unsupervised therapy. She was admitted to
an isolation room in a ward with HIV-positive patients, but the room, unbeknown
to hospital staff, was at positive-pressure relative to the main ward. Seven
HIV-positive contacts developed MDR-TB. The diagnosis in the second patient was
delayed, partly because acid-fast bacilli in his sputum were assumed to be
Mycobacterium avium-intracellulare. All the available Mycobacterium
tuberculosis isolates were indistinguishable by molecular typing. Nearly 1400
staff and patient contacts were offered screening, but the screening programme
detected only one of the cases. Despite therapy, the index patient and two of
the contacts died. HIV-positive patients are more likely than others to develop
tuberculosis after exposure, and the disease may progress more rapidly. In
these patients the possibility that acid-fast bacilli may represent M. tuberculosis
must always be considered. Patients with tuberculosis (suspected or proven)
should not be nursed in the same wards as immunosuppressed patients, and should
be isolated. MDR-TB cases must be isolated in negative-pressure rooms. Hospital
side-rooms may be positive-pressure as a fire safety measure; infection control
teams must be aware of the airflows in all isolation rooms, and must be
consulted during the design of hospital buildings. Good communication between
infection control teams and clinicians is important, and all medical and
nursing staff must be aware of the principles of management of patients with
proven or suspected tuberculosis and MDR-TB.
TI: BCG and prospects
for new vaccines against tuberculosis.
AU: Ortona-L; De-Luca-A
AD: Istituto di Clinica delle Malattie Infettive, Universita Cattolica del S. Cuore, Policlinico A. Gemelli, Roma, Italy.
SO: Rays. 1998 Jan-Mar; 23(1): 225-30
AB: Seventy-five years have elapsed since
its introduction and a renewed interest has arisen in the vaccination with
bacillus Calmette-Guerin (BCG) for the prevention of tuberculosis. This
interest has been motivated by the increase in tuberculosis, especially in
multidrug-resistant tuberculosis. The efficacy of BCG has been questioned for
decades, however, new epidemiological studies have shown a protective effect in
some populations and categories at risk. Protection is more evident in the
populations with a high incidence of the disease, especially against
disseminated and invasive disease. The use of this vaccination is advised for
specific populations based on the risk of infection and disease. However, BCG
has a limited benefit. New agents produced with methods of molecular biology
are supplying encouraging results in the animal model.
TI: Epidemiology of multidrug-resistant tuberculosis.
AU: Ortona-L; De-Luca-A
AD: Istituto di Clinica delle Malattie Infettive, Universita Cattolica del S. Cuore, Policlinico A. Gemelli, Roma, Italy.
SO: Rays. 1998 Jan-Mar; 23(1): 15-8
AB: Since the nineties, the increasing
incidence of tuberculosis was accompanied by numerous epidemic foci of
multidrug-resistant strains of Mycobacterium tuberculosis, especially of
nosocomial transmission. In the United States and other countries there was an
increase in both primary and acquired drug-resistant tuberculosis. HIV
infection and the poor social and health care facilities of different
population groups, the lack of compliance with therapy and the reduction of
programs of nosocomial and extranosocomial surveillance and control of
tuberculosis are all concomitant causes of the increase in multi-drug resistant
cases. The improvement in surveillance and treatment closely monitored
therapies and nosocomial control by specific regulations, when applied, have
contributed to the decrease in the rate of drug-resistant forms.
TI: Surveillance of tuberculosis treatment prescription in Italy. The Varese TB Study Group.
AU: Migliori-GB; Spanevello-A; Ambrosetti-M; Neri-M
AD: Division of Pneumology, Fondazione S. Maugeri, Clinica del Lavoro e della Riabilitazione, Care and Research Institute, Tradate, Italy.
SO: Monaldi-Arch-Chest-Dis. 1998 Feb; 53(1): 37-42
AB: In industrialized countries, data on
antituberculosis treatment are scanty. The aim of this study was to describe
the tuberculosis (TB) treatment programme from diagnosis to drug intake in a
model area of northern Italy, evaluating: 1) antiTB regimens prescribed and
their adequacy; 2) dosage of drugs; 3) side-effects; and 4) drug resistance. Individual
data on new TB cases from all the existing health facilities of the area were
collected by means or a prospective surveillance system based on the systematic
review of original clinical forms. Regimens were classified as adequate,
potentially adequate and inadequate, based on published recommendations. Data
on drug dosage, side effects and drug resistance were analysed. Out of 109 TB
cases with regimen recorded on clinical records, 20.2% included more than four
major drugs, 63.3% three drugs and 16.5% two drugs. The regimens were
classified as 1.8% adequate, 85% potentially inadequate and 12.8% inadequate.
The dosages prescribed (mean +/- SD in mg.kg body weight-1.day-1) were:
isoniazid: 6.8 +/- 2.7: rifampicin: 10.2 +/- 2.5; ethambutol: 21.3 +/- 4.5;
streptomycin: 17.4 +/- 4.0: and pyrazinamide: 15.2. Twelve per cent of cases
required treatment modification due to side-effects. Resistance to one single
drug was found in 9% of cases, but no case with multidrug-resistant TB. The
description of the treatment programme revealed that: 1) the majority of
regimens are potentially adequate; 2) they are at a proper dosage; 3) the
side-effects are in agreement with the literature; and 4) drug-resistance rates
are low.
TI: Initial drug regimens for the treatment of tuberculosis: evaluation of physician prescribing practices in New Jersey, 1994 to 1995.
AU: Liu-Z; Shilkret-KL; Finelli-L
AD: The New Jersey Department of Health and Senior Services, Trenton 08625-0369, USA.
SO: Chest. 1998 Jun; 113(6): 1446-51
AB: STUDY OBJECTIVE: To evaluate physician
prescribing practices for the initial therapy for tuberculosis (TB) according
to the recommendations of the Centers for Disease Control and Prevention (CDC)
and American Thoracic Society (ATS). DESIGN: Cross-sectional study. SETTING:
Statewide TB surveillance system in New Jersey, 1994 to 1995. PATIENTS: We
studied 1,230 culture-positive TB patients who were alive at diagnosis and
whose isolates were tested for isoniazid susceptibility. RESULTS: Almost all TB
patients (98%) were reported from counties with an isoniazid-resistant
proportion of 4% or more, which is the minimum level for implementation of an
initial four-drug regimen recommended by CDC/ATS. Overall, 36% of the 1,230
patients were not initially treated with four or more drugs. Multivariate
analyses found that non-Hispanic white patients were more likely to be treated
with fewer than four drugs than were non-Hispanic black patients. Private
practitioners and physicians at chest clinics were about five times more likely
to prescribe fewer than four drugs initially than were physicians at the
hospital where a national TB center is located. CONCLUSION: A substantial
proportion of physicians did not initially treat their TB patients according to
the CDC/ATS recommendations. The results suggest that New Jersey physicians
should be better informed about the recom-mendation and the high level of drug
resistance in the communities they serve to assure that TB patients receive
appropriate initial therapy.
TI: Origin and management of primary and acquired drug-resistant tuberculosis in The Netherlands: the truth behind the rates.
AU: Lambregts-van-Weezenbeek-CS; Jansen-HM; Veen-J; Nagelkerke-NJ; Sebek-MM; van-Soolingen-D
AD: Royal Netherlands Tuberculosis Association (KNCV), The Hague, The Netherlands.
SO: Int-J-Tuberc-Lung-Dis. 1998 Apr; 2(4): 296-302
AB: SETTING: The Netherlands, May 1994 to
May 1996. OBJECTIVE: 1) To estimate to what extent drug-resistant tuberculosis
was acquired or recently transmitted in The Netherlands, 2) to assess the
relevance of drug resistance data as routinely collected, and 3) to describe
case management. DESIGN: Prospective descriptive study. Patients diagnosed with
drug-resistant tuberculosis were interviewed. Information on patient management
and contact tracing was collected. IS6110 restriction fragment length
polymorphism (RFLP) patterns of all strains were compared with those of the
National RFLP library and clusters were analyzed. RESULTS: In total 193 cases
were included in the study. Acquired drug resistance (ADR) was rare. Dutch ADR
patients reported receiving treatment a long time previously (mean age 58, mean
treatment interval 23 years). Most foreign ADR patients had been treated
recently in their country of origin. Of 151 primary drug-resistant (PDR) cases,
129 (85%) were foreign-born, of whom few (8%-19%) had been infected in The
Netherlands. Few Dutch PDR cases had been infected recently (mean age 49
years). Rifampicin resistance was more frequently observed in foreign ADR cases
than in foreign PDR cases (28% vs 5%; P < 0.001). One third of cases had not
been treated according to treatment guidelines. CONCLUSION: Only a small
proportion of drug-resistant cases resulted from recent infection or treatment
in The Netherlands. General rates of ADR and PDR do not reflect current Dutch
programme performance. For programme monitoring, ADR/PDR rates and their trends
must be reported and evaluated in Dutch and foreign patients separately.
TI: Nationwide surveillance of drug-resistant tuberculosis in The Netherlands: rates, risk factors and treatment outcome.
AU: Lambregts-van-Weezenbeek-CS; Jansen-HM; Nagelkerke-NJ; van-Klingeren-B; Veen-J
AD: Royal Netherlands Tuberculosis Association (KNCV), The Hague, The Netherlands.
SO: Int-J-Tuberc-Lung-Dis. 1998 Apr; 2(4): 288-95
AB: SETTING: The Netherlands, 1993 and 1994.
OBJECTIVE: To determine 1) rates of drug resistance in relation to nationality
and country of birth, 2) risk factors for drug resistance, 3) treatment outcome
of drug-resistant cases, and 4) rates of primary and acquired drug resistance.
DESIGN: Retrospective study of all cases notified with bacillary tuberculosis
in The Netherlands in 1993 and 1994. RESULTS: Drug resistance to one or more
drugs was reported in 268 (14.6%) of all 1836 cases, of whom 203 (76%) were
foreign born. In Dutch patients rates of isoniazid (H) (2.9%) and streptomycin
resistance (3.6%) were lower than in foreign patients (8.6% and 10.6%
respectively, P < 0.001). Multidrug (H and rifampicin [R]) resistance was
reported in 0.5% of Dutch-born and 1.4% of foreign cases (P = 0.055). Rates of
acquired resistance to H (11.4%) and HR (5.7%) were higher than rates of
primary resistance to these drugs (5.2% and 0.7% respectively, P < 0.05),
but the number of retreatment cases was low (6.8% of all cases). Drug
resistance was associated with immigration but not with drug use, homelessness
or human immunodeficiency virus (HIV) co-infection. One fifth (20%) of
drug-resistant cases was diagnosed by active case finding. Treatment outcome in
sensitive and resistant cases was compared. CONCLUSION: These findings suggest
that drug resistance is imported, but it is unclear to what extent drug
resistance among foreigners has been transmitted or created in The Netherlands.
Drug resistance data should be monitored in Dutch and foreign patients
separately.
TI: Risk factors for the spread of antibiotic-resistant bacteria.
AU: Rao-GG
AD: Department of Microbiology, University Hospital, Lewisham, London, England.
SO: Drugs. 1998 Mar; 55(3): 323-30
AB: The emergence of antibiotic resistance
is primarily due to excessive and often unnecessary use of antibiotics in
humans and animals. Risk factors for the spread of resistant bacteria in
hospitals and the community can be summarised as over-crowding, lapses in
hygiene or poor infection control practices. Increasing antibiotic resistance
in bacteria has been exacerbated by the slow pace in developing newer
antibiotics. Methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant
enterococci (VRE) and multiresistant Gram-negative bacteria are spread
primarily by direct or indirect person-to-person contact. Independent risk
factors for MRSA include the use of broad spectrum antibiotics, the presence of
decubitus ulcers and prosthetic devices while those for VRE include prolonged
hospitalisation and treatment with glycopeptides or broad spectrum antibiotics.
For the spread of resistant Gram-negative bacteria risk factors include urinary
catheterisation, excessive use of antibiotics and contamination of humidifiers
and nebulisers. The spread of penicillin-resistant pneumococci (PRP) and
drug-resistant and multidrug-resistant tuberculosis (MDRTb) is due to airborne
transmission. Risk factors for the spread of PRP include overcrowding,
tracheostomies and excessive use of penicillins for viral respiratory
infections; for MDRTb they include poor compliance, convergence of
immunosuppressed patients, delayed diagnosis or treatment, and poor or
inadequate ventilation and isolation facilities. Recent developments in the
genomic mapping of many bacteria and advances in combinatorial chemistry
promise to usher in a new era of antibiotic development. While this may result
in our regaining some of the ground lost to resistant bacteria, there will
still be a continuing need to minimise the spread of antibiotic resistance
through the rational use of antibiotic agents and stringent infection control
practice
TI: Time to detection of Mycobacterium tuberculosis in sputum culture correlates with outcome in patients receiving treatment for pulmonary tuberculosis.
AU: Epstein-MD; Schluger-NW; Davidow-AL; Bonk-S; Rom-WN; Hanna-B
AD: Department of Medicine, Bellevue Chest Service, NYU Medical Center, New York, NY 10016, USA.
SO: Chest. 1998 Feb; 113(2): 379-86
AB: STUDY OBJECTIVE: The purpose of this
study was to determine whether the time to detection (TTD) of Mycobacterium
tuberculosis in sputum culture correlates with the response to antituberculous
treatment in patients with pulmonary tuberculosis. STUDY DESIGN: Twenty-six
consecutive patients were studied who had active pulmonary tuberculosis and
sufficient sputum cultures and clinical follow-up to allow adequate assessment.
RESULTS: Following initiation of antituberculous therapy, 13 patients (group 1,
responders) had a complete response to treatment, and the TTD of M tuberculosis
using the mycobacterial growth indicator tube increased steadily. The remaining
13 patients (group 2, nonresponders) had persistent evidence of active disease
and demonstrated little or no increase in the TTD with treatment unless an
additional therapeutic intervention was implemented (surgery, improved
compliance with medications, or a change in medications). The presence of HIV
infection, intravenous drug use, multidrug resistance, treatment with
second-line therapy, extensive radiographic involvement, and cavitary disease
were associated with a delayed increase in the TTD. CONCLUSIONS: The TTD was
superior to clinical, radiographic, or conventional bacteriologic evaluation in
determining treatment outcome. The TTD closely correlates with the overall
response to treatment for pulmonary tuberculosis and may represent a useful
adjunct to predict outcome in these patients.
TI: Costs of implementing a tuberculosis control plan: a complete education module that uses a train-the-trainer concept.
AU: Trovillion-E; Murphy-D; Mayfield-J; Dorris-J; Traynor-P; Fraser-V
AD: Quality Management Department, Barnes-Jewish Hospital at Washington University Medical Center, BJC Health System, St. Louis, MO, USA.
SO: Am-J-Infect-Control. 1998 Jun; 26(3): 258-62
AB: BACKGROUND: Tuberculosis once was
thought to be nearly eradicated, but there was a 14% increase in cases of
tuberculosis between 1985 and 1993, although decreases were observed in both
1994 and 1995. To reduce spread of this disease, health care workers must be
familiar with tuberculosis, its signs, symptoms, and modes of transmission. In
October 1994 the Centers for Disease Control and Prevention issued “Guidelines
for Preventing the Transmission of Mycobacterium tuberculosis in Health Care
Facilities.” The combination of persistently high tuberculosis case rates, the
development of multidrug-resistant tuberculosis, the new Centers for Disease
Control and Prevention recommendations, and Occupational Safety and Health
Administration enforcement has mandated large-scale training in health care
facilities. METHODS: A tuberculosis control plan was developed and the
train-the-trainer concept was selected after review of the hospital’s
tuberculosis risk assessment, staff members requiring training, and available
teaching staff. The training program that was developed included tuberculosis
pathology and transmission, national and local epidemiology, placement and evaluation
of skin tests, and an algorithm to assist in determining when isolation is
indicated. RESULTS: One hundred forty-six trainers were trained in 4 days.
During the next quarter, 66% (1989/3000) of staff members requiring instruction
were trained. The total cost involved in development and training was
approximately $26,000 and involved 1600 person-hours. CONCLUSION: Tuberculosis
training should be directed toward high-risk areas, including intensive care
units, emergency departments, and acute medicine wards. Large-scale training is
time-consuming and expensive. Evaluation remains difficult. To facilitate
compliance, pretest and posttest results should be provided, linked to
Occupational Safety and Health Administration compliance and quality indicators
for the hospital.
TI: An outbreak of
multi-drug-resistant tuberculosis in a London teaching hospital.
AU: Breathnach-AS; de-Ruiter-A; Holdsworth-GM; Bateman-NT; O’Sullivan-DG; Rees-PJ; Snashall-D; Milburn-HJ; Peters-BS; Watson-J; Drobniewski-FA; French-GL
AD: Department of Microbiology, St Thomas’s Hospital, London, UK.
SO: J-Hosp-Infect. 1998 Jun; 39(2): 111-7
AB: We describe the epidemiology and control
of a hospital outbreak of multi-drug-resistant tuberculosis (MDR-TB). A human immunode-ficiency
virus (HIV)-negative patient with drug-sensitive tuberculosis developed MDR-TB
during a period of unsupervised therapy. She was admitted to an isolation room
in a ward with HIV-positive patients, but the room, unbeknown to hospital staff,
was at positive-pressure relative to the main ward. Seven HIV-positive contacts
developed MDR-TB. The diagnosis in the second patient was delayed, partly
because acid-fast bacilli in his sputum were assumed to be Mycobacterium
avium-intracellulare. All the available Mycobacterium tuberculosis isolates
were indistinguishable by molecular typing. Nearly 1400 staff and patient
contacts were offered screening, but the screening programme detected only one
of the cases. Despite therapy, the index patient and two of the contacts died.
HIV-positive patients are more likely than others to develop tuberculosis after
exposure, and the disease may progress more rapidly. In these patients the
possibility that acid-fast bacilli may represent M. tuberculosis must always be
considered. Patients with tuberculosis (suspected or proven) should not be
nursed in the same wards as immunosuppressed patients, and should be isolated.
MDR-TB cases must be isolated in negative-pressure rooms. Hospital side-rooms
may be positive-pressure as a fire safety measure; infection control teams must
be aware of the airflows in all isolation rooms, and must be consulted during
the design of hospital buildings. Good communication between infection control
teams and clinicians is important, and all medical and nursing staff must be
aware of the principles of management of patients with proven or suspected
tuberculosis and MDR-TB.
TI: BCG and prospects for new vaccines against tuberculosis.
AU: Ortona-L; De-Luca-A
AD: Istituto di Clinica delle Malattie Infettive, Universita Cattolica del S. Cuore, Policlinico A. Gemelli, Roma, Italy.
SO: Rays. 1998 Jan-Mar; 23(1): 225-30
AB: Seventy-five years have elapsed since
its introduction and a renewed interest has arisen in the vaccination with
bacillus Calmette-Guerin (BCG) for the prevention of tuberculosis. This
interest has been motivated by the increase in tuberculosis, especially in
multidrug-resistant tuberculosis. The efficacy of BCG has been questioned for
decades, however, new epidemiological studies have shown a protective effect in
some populations and categories at risk. Protection is more evident in the
populations with a high incidence of the disease, especially against
disseminated and invasive disease. The use of this vaccination is advised for
specific populations based on the risk of infection and disease. However, BCG
has a limited benefit. New agents produced with methods of molecular biology
are supplying encouraging results in the animal model.
TI: Epidemiology of multidrug-resistant tuberculosis.
AU: Ortona-L; De-Luca-A
AD: Istituto di Clinica delle Malattie Infettive, Universita Cattolica del S. Cuore, Policlinico A. Gemelli, Roma, Italy.
SO: Rays. 1998 Jan-Mar; 23(1): 15-8
AB: Since the nineties, the increasing
incidence of tuberculosis was accompanied by numerous epidemic foci of
multidrug-resistant strains of Mycobacterium tuberculosis, especially of
nosocomial transmission. In the United States and other countries there was an
increase in both primary and acquired drug-resistant tuberculosis. HIV
infection and the poor social and health care facilities of different
population groups, the lack of compliance with therapy and the reduction of
programs of nosocomial and extranosocomial surveillance and control of
tuberculosis are all concomitant causes of the increase in multi-drug resistant
cases. The improvement in surveillance and treatment closely monitored
therapies and nosocomial control by specific regulations, when applied, have
contributed to the decrease in the rate of drug-resistant forms.
TI: Initial drug regimens for the treatment of tuberculosis: evaluation of physician prescribing practices in New Jersey, 1994 to 1995.
AU: Liu-Z; Shilkret-KL; Finelli-L
AD: The New Jersey Department of Health and Senior Services, Trenton 08625-0369, USA.
SO: Chest. 1998 Jun; 113(6): 1446-51
AB: STUDY OBJECTIVE: To evaluate physician
prescribing practices for the initial therapy for tuberculosis (TB) according
to the recommendations of the Centers for Disease Control and Prevention (CDC)
and American Thoracic Society (ATS). DESIGN: Cross-sectional study. SETTING:
Statewide TB surveillance system in New Jersey, 1994 to 1995. PATIENTS: We
studied 1,230 culture-positive TB patients who were alive at diagnosis and
whose isolates were tested for isoniazid susceptibility. RESULTS: Almost all TB
patients (98%) were reported from counties with an isoniazid-resistant
proportion of 4% or more, which is the minimum level for implementation of an
initial four-drug regimen recommended by CDC/ATS. Overall, 36% of the 1,230
patients were not initially treated with four or more drugs. Multivariate
analyses found that non-Hispanic white patients were more likely to be treated
with fewer than four drugs than were non-Hispanic black patients. Private
practitioners and physicians at chest clinics were about five times more likely
to prescribe fewer than four drugs initially than were physicians at the
hospital where a national TB center is located. CONCLUSION: A substantial
proportion of physicians did not initially treat their TB patients according to
the CDC/ATS recommendations. The results suggest that New Jersey physicians
should be better informed about the recom-mendation and the high level of drug
resistance in the communities they serve to assure that TB patients receive
appropriate initial therapy.
TI: Origin and management of primary and acquired drug-resistant tuberculosis in The Netherlands: the truth behind the rates.
AU: Lambregts-van-Weezenbeek-CS; Jansen-HM; Veen-J; Nagelkerke-NJ; Sebek-MM; van-Soolingen-D
AD: Royal Netherlands Tuberculosis Association (KNCV), The Hague, The Netherlands.
SO: Int-J-Tuberc-Lung-Dis. 1998 Apr; 2(4): 296-302
AB: SETTING: The Netherlands, May 1994 to
May 1996. OBJECTIVE: 1) To estimate to what extent drug-resistant tuberculosis
was acquired or recently transmitted in The Netherlands, 2) to assess the
relevance of drug resistance data as routinely collected, and 3) to describe
case management. DESIGN: Prospective descriptive study. Patients diagnosed with
drug-resistant tuberculosis were interviewed. Information on patient management
and contact tracing was collected. IS6110 restriction fragment length
polymorphism (RFLP) patterns of all strains were compared with those of the
National RFLP library and clusters were analyzed. RESULTS: In total 193 cases
were included in the study. Acquired drug resistance (ADR) was rare. Dutch ADR
patients reported receiving treatment a long time previously (mean age 58, mean
treatment interval 23 years). Most foreign ADR patients had been treated
recently in their country of origin. Of 151 primary drug-resistant (PDR) cases,
129 (85%) were foreign-born, of whom few (8%-19%) had been infected in The
Netherlands. Few Dutch PDR cases had been infected recently (mean age 49
years). Rifampicin resistance was more frequently observed in foreign ADR cases
than in foreign PDR cases (28% vs 5%; P < 0.001). One third of cases had not
been treated according to treatment guidelines. CONCLUSION: Only a small
proportion of drug-resistant cases resulted from recent infection or treatment
in The Netherlands. General rates of ADR and PDR do not reflect current Dutch
programme performance. For programme monitoring, ADR/PDR rates and their trends
must be reported and evaluated in Dutch and foreign patients separately.
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Висш медицински институт - Плевен
ул. “Св. Климент Охридски” N 1
Медицинска библиотека
5800 Плевен
Програма
“Комуникации за по-добро здраве”