Liver failure attributable to hepatitis A virus infection in a developing country

Area of Science:

• Hepatology
• Pediatric Infectious Diseases
• Public Health

Background:

• Hepatitis A virus (HAV) infections are typically subclinical in young children but can lead to severe outcomes.
• HAV is a significant cause of morbidity and mortality in developing countries, especially among children.
• Characterizing HAV-related acute liver failure in children is crucial for understanding disease progression and outcomes in endemic regions.

Purpose of the Study:

• To characterize the clinical course and outcomes of hepatitis A-related acute liver failure in children from a developing country.
• To identify predictors of survival in pediatric patients with HAV-induced liver failure.
• To highlight the burden of HAV infection and its complications in a tertiary care setting in Pakistan.

Main Methods:

• Retrospective review of pediatric patients (<15 years) with confirmed HAV infection admitted between January 1991 and August 1998.
• Identification of patients with progressive hepatic dysfunction and liver failure.
• Statistical analysis, including discriminant analysis, to identify predictors of survival.

Main Results:

• Of 2735 patients with HAV, 232 were hospitalized, and 30 developed liver failure.
• 83.3% of patients with HAV-related liver failure presented with encephalopathy, and 36.7% died.
• Prothrombin time was the most significant predictor of survival; age, encephalopathy grade, hospitalization duration, prothrombin time, and jaundice duration differentiated survivors from non-survivors.

Conclusions:

• HAV infection poses a significant risk of severe liver dysfunction and mortality in children in developing countries.
• Tertiary medical facilities may not fully mitigate the impact of HAV in endemic settings.
• Improved sanitation and universal HAV immunization are recommended to reduce disease burden and sequelae.