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Risk factors for hepatitis B and C in multi-transfused patients in Uruguay
Lilia López1, Patricia López, Antonio Arago
1Departamento y Cátedra de Hemoterapia, Hospital de Clínicas, Av. Italia s/n, Montevideo, Uruguay. emihidal2002@yahoo.es
Insights
Transfusion-transmitted hepatitis B (HBV) and C (HCV) infections remain a concern, particularly for multi-transfused patients. Systematic blood donor screening significantly reduced these risks.
Area of Science:
- Hepatology
- Infectious Diseases
- Public Health
Background:
- Transfusion-transmitted infections (TTIs) persist despite advancements in prevention.
- Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections pose a significant risk to multi-transfused patients in Uruguay.
Purpose of the Study:
- To determine the prevalence of HBV and HCV infections in multi-transfused patients in Uruguay.
- To assess the impact of systematic serological screening on TTI rates.
- To identify risk factors, including transfusion volume and patient characteristics, associated with HBV and HCV acquisition.
Main Methods:
- A cross-sectional study was conducted involving 409 multi-transfused patients.
- Serological testing for HCV antibodies, HBV surface antigen (HBsAg), and HBV core antibodies (HBcAc) was performed.
Main Results:
- Overall HCV antibody prevalence was 12.7%, with significantly higher rates in hemophiliacs (60.0%).
- HBV infection markers (HBsAg and HBcAc) were found in 1.0% and 16.6% of patients, respectively.
- A direct correlation was observed between the number of transfusions and the prevalence of HCV antibodies and HBcAc, with higher rates in patients transfused before systematic donor screening.
Conclusions:
- Blood transfusions are identified as the primary risk factor for HCV and HBV infection in this cohort.
- Systematic serological screening of blood donors proved highly effective in mitigating transfusion-transmitted HBV and HCV.
Background:
In spite of the progress made in the prevention of transfusion-transmitted infections over the last years, these still occur. It was considered that infection by hepatitis B (HBV) and C (HCV) viruses could be a major problem in Uruguay, especially among high-risk individuals, such as multi-transfused patients.
Objectives:
To assess the prevalence of HBV and HCV infection among multi-transfused Uruguayan patients and the impact of serological screening; to evaluate the role of number of transfusions and other potential risk factors for the acquisition of HBV and HCV infection.
Study Design:
Cross-sectional study of HCV antibodies, HBV surface antigen (HBsAg) and HBV core antibodies (HBcAc) in 409 multi-transfused patients.
Results:
Of 409 patients studied, 147 (35.9%) received blood products due to acute bleeding, 118 (28.9%) were hemato-oncological, 75 (18.3%) hemophiliacs, 64 (15.6%) were on hemodialysis and 5 (1.2%) suffered sickle cell anemia. Prevalence of HCV antibody was 12.7%. Of the HCV positive patients, 45 were hemophiliacs, for a prevalence rate of 60.0%. The prevalence rates for hemodialysis and acute bleeding patients were 6.3% and 2.0%, respectively. Prevalence of HBsAg was 1.0%; 16.6% of subjects were positive for HBcAc. The prevalence rates of HBcAc were 48.0%, 15.0% and 3.1% among hemophiliacs, acute bleeding and hemodialysis patients, respectively. There was a direct relationship between the number of products transfused and prevalence of both hepatitis C antibodies and HBcAc. Higher prevalence of HCV and HBcAc was observed among the group of patients who received transfusions before the systematic screening of blood donors.
Conclusions:
Exposure to blood transfusions was the main risk factor for HCV and HBV infection. The systematic serological screening of blood donors was highly effective in reducing transfusion transmitted infections.
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