Spontaneous remission of chronic hepatitis C in children

T Fujisawa1, H Komatsu, A Inui

  • 1Department of Paediatrics, National Defense Medical College, Tokorozawa-City, Saitama, Japan.

Insights

Spontaneous remission of chronic hepatitis C in children is rare (8.3%). Key indicators include low hepatitis C virus (HCV) RNA levels and a decrease in anti-HCV core antibodies, but liver HCV RNA testing is crucial for confirmation.

Area of Science:

  • Pediatrics
  • Hepatology
  • Virology

Background:

  • Chronic hepatitis C (HCV) affects children, with most cases linked to blood transfusions.
  • Long-term monitoring is essential to understand the natural course of pediatric HCV.
  • Elevated alanine aminotransferase (ALT) levels indicate ongoing liver inflammation in chronic cases.

Observation:

  • A 3-year longitudinal study monitored 48 children with chronic hepatitis C.
  • All children tested positive for anti-HCV and serum HCV RNA, with elevated ALT levels for over 1.5 years.
  • Spontaneous remission was observed in 8.3% of patients, defined by sustained biochemical remission and HCV RNA clearance.

Findings:

  • Hepatitis C virus RNA was detectable in the liver of 25% of patients even after serum clearance.
  • A low serum titer of HCV RNA and a significant decrease in antibody to HCV core antigen (anti-HCV core) were associated with spontaneous remission.
  • Serum HCV RNA reappeared in some patients where anti-HCV core levels did not significantly decrease.

Implications:

  • Intrahepatic HCV RNA assessment is vital for confirming complete remission in pediatric chronic hepatitis C.
  • Identifying biomarkers like low HCV RNA titer and decreasing anti-HCV core may predict remission in children.
  • Further research into the mechanisms of spontaneous viral clearance in pediatric HCV is warranted.
Abstract

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