A 24-year-old man is found incidentally to have HBsAg positive, HBeAg positive, HBV DNA 2 x 10^8 IU/mL, ALT 26 U/L (ULN 40), and normal platelet count. FibroScan shows 4.2 kPa. He is asymptomatic. What is the appropriate management?
- A Start tenofovir disoproxil fumarate immediately
- B No antiviral therapy; monitor ALT and HBV DNA every 3 to 6 months ✓
- C Start pegylated interferon alpha for 48 weeks
- D Liver biopsy followed by antiviral therapy regardless of findings
Correct answer: B. No antiviral therapy; monitor ALT and HBV DNA every 3 to 6 months
Explanation
This is the immune tolerant phase: HBeAg positive, very high HBV DNA, persistently normal ALT, and minimal fibrosis. These patients have low rates of spontaneous biochemical activity and poor sustained response to therapy, so guidelines advise observation with periodic monitoring rather than treatment. Treatment is indicated once ALT rises persistently or significant fibrosis appears. The normal ALT and FibroScan kill the distractors favouring immediate tenofovir or biopsy-driven therapy.
Reference: AASLD Practice Guidance on Hepatitis B, 2023 update ed.
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Written and medically reviewed by the StethoPrep medical team.