Evolution of Hepatitis A-Related Acute Liver Failure in North America Over 22 years.

Chaudhary, Usamah; Anouti, Ahmad; Rule, Jody A; Lee, William M; Acute Liver Failure Study Group · Am J Gastroenterol · 2026

retrospective_cohort · Level III

Where this comes from

Abstract

Hepatitis A virus (HAV) is a rare cause of acute liver failure (ALF) that carries a relatively good prognosis for recovery. In recent years, overall numbers of HAV cases have declined, likely because of increased hepatitis A vaccination rates. We reviewed the Acute Liver Failure Study Group registry for the number HAV-related ALF cases over 24 years. Overall, the number of HAV ALF cases enrolled steeply declined. After 2010, when we began recording acute liver injury (ALI: International normalized ratio ≥ 2 but no encephalopathy), an apparent increase in ALI incidence was noted, despite a near absence of ALF cases.

Medical subject headings