Epidemiological characteristics of hemophilia in the pre-primary prophylaxis era: a historical cohort

Introduction: Epidemiological studies on hemophilia in the Brazilian population are historically scarce. Despite the continuous effort made by the National Program of Inherited Bleeding Disorders to map this condition, little information is available, especially on the period prior to program concep...

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Main Authors: Dayenne Helena Catelli, Júlia Plentz Portich, Adriana Celia Luz, Giovana Fecker da Costa Diaz, Liliane Ourique de Ourique, Daniel Sander Hoffmann, Guilherme Rasia Bosi, Barbara Coiro Spessato, Leo Sekine, Lucia Mariano da Rocha Silla
Format: Article
Language:English
Published: Hospital de Clinicas de Porto Alegre ; Universidade Federal do Rio Grande do Sul (UFRGS) 2021-06-01
Series:Clinical and Biomedical Research
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Online Access:https://seer.ufrgs.br/hcpa/article/view/107936
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Summary:Introduction: Epidemiological studies on hemophilia in the Brazilian population are historically scarce. Despite the continuous effort made by the National Program of Inherited Bleeding Disorders to map this condition, little information is available, especially on the period prior to program conception. Therefore, the present study aims to assess the epidemiological, serological, and clinical characteristics of patients with hemophilia in the state of Rio Grande do Sul, Brazil. Methods: A total of 455 patients had their medical records reviewed from January 1, 2003 to December 31, 2007. Results: We observed a remarkable prevalence of hepatitis C virus (HCV) infection in patients with both hemophilia A and B, and this prevalence significantly increased along with age (p < 0.001). No positive anti-HCV results were observed among children younger than 5 years old. There was a significant correlation between the severity of hemophilia and the number of arthropathies in all age categories. Considering the presence of inhibitors, a significant difference was observed between age groups, as older patients had higher inhibitor titers. There was a significant correlation between mean coagulation factor consumption and the number of arthropathies in patients over 5 years old. Conclusions: This profile analysis of patients with hemophilia reflects a gradual improvement in treatment safety and efficiency, as well as the need for continued investment in this population.
ISSN:2357-9730