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High prevalence of hepatitis C infection among Brazilian hemodialysis patients in Rio de Janeiro: a one-year follow-up study Alta prevalência de infecção pelo virus da hepatite C em pacientes de hemodiálise do Rio de Janeiro: estudo de acompanhamento durante 1 ano

By B. O. M. Vanderborght, C. Rouzere, C. F. Ginuino, G. Maertens, H. Van Heuverswyn and C. F. T. Yoshida

Abstract

Nearly 400 hemodialysis patients treated at 5 different hemodialysis units in Rio de Janeiro were tested for one year for the presence of hepatitis C and B markers. During the same period, samples were also obtained from 35 continuous ambulatory peritoneal dialysis (CAPD) patients and from 242 health care workers. Depending on the hemodialysis unit studied, anti-HCV prevalence rates ranging from 47% to 82% (mean 65%) were detected. CAPD patients showed a lower prevalence of 17%. The prevalence of antibodies against hepatitis C virus (anti-HCV) among health care workers was 2.9%. We observed a hepatitis C attack rate of 11.5% per year in the anti-HCV-negative hemodialysis patient population. An average of 9.4% of the hemodialysis patients were chronic carriers of hepatitis B virus (HBV) (range 1.8% - 20.4%), while 48.9% showed markers of previous HBV infection. The HBV attack rate was 4.5% per year (range 0% - 6%). These results indicate an alarming high prevalence of anti-HCV among hemodialysis patients of this studied region.<br>Aproximadamente 400 pacientes de hemodiálise tratados em 5 diferentes unidades no Rio de Janeiro foram acompanhados durante 1 ano para presença de marcadores virais de hepatite B e C. Durante o mesmo período, amostras foram também de 35 pacientes ambulatoriais de diálise peritonial contínua (CAPD) e de 242 funcionários das unidades. Dependendo da unidade em estudo foram detectadas prevalências de anti-HCV variando de 47% a 82% (média 65%). Pacientes de CAPD demonstraram uma baixa prevalência de 17%. A prevalência de anti-HCV em funcionários foi de 2.9%. Observamos uma taxa de ataque de hepatite C de 11.5% por ano na população paciente de hemodiálise anti-HCV-negativo. Uma média de 9.4% de pacientes de hemodiálise eram portadores crônicos do vírus da hepatite B (VHB) (taxa de 1.8% a 20.4%), enquanto 48.9% apresentaram marcadores de infecção passada de HBV. A taxa de ataque de HBV foi de 4.5% por ano (taxa de 0% a 6%). Esses resultados indicam uma alarmante prevalência alta de anti-HCV em pacientes de hemodiálise dessa região estudada

Topics: Hemodialysis, CAPD, Hepatitis C virus, Hepatitis B virus, Hepatitis C transmission, Brazil, Medicine (General), R5-920, Medicine, R, DOAJ:Medicine (General), DOAJ:Health Sciences, Arctic medicine. Tropical medicine, RC955-962
Publisher: Universidade de São Paulo
Year: 1995
DOI identifier: 10.1590/S0036-46651995000100012
OAI identifier: oai:doaj.org/article:15f8b7b1cbb44bfe823b7f883f8fcbbd
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