Chronic active hepatitis in children. A clinical and immunological long-term study

Area of Science:

• Pediatric Gastroenterology
• Hepatology
• Immunology

Background:

• Chronic active hepatitis (CAH) in children presents diagnostic and therapeutic challenges.
• Etiology of CAH in pediatric patients often remains unknown.
• Autoimmune markers like smooth muscle antibodies (SMA) and antinuclear antibodies (ANA) are frequently observed.

Purpose of the Study:

• To evaluate the long-term outcomes of immunosuppressive therapy in pediatric patients with CAH.
• To assess the role of specific autoantibodies in monitoring disease activity.
• To investigate potential triggers for CAH in children.

Main Methods:

• Longitudinal follow-up of seven pediatric patients (6 girls, 1 boy) diagnosed with CAH.
• Treatment with immunosuppressive therapy.
• Monitoring of clinical well-being, liver enzymes (SGOT), IgG levels, and autoantibody titres (SMA, ANA).
• Serological testing for measles and rubella antibodies.

Main Results:

• Immunosuppressive therapy led to improved well-being and decreased SGOT, IgG, and SMA titres.
• All patients exhibited high titres of measles antibodies; two cases had CAH onset post-measles or rubella.
• One patient died from liver failure after 5 years; the remaining six achieved a normal life.

Conclusions:

• Pediatric CAH warrants consideration in children presenting with hepatitis symptoms.
• Long-term immunosuppressive treatment with regular monitoring is essential for managing pediatric CAH.
• SMA titre estimation is a valuable tool for assessing CAH activity in young patients.