A 35-year-old man newly diagnosed with HIV has CD4 count of 85/μL and HIV RNA of 320,000 copies/mL. He presents with fever, weight loss, and night sweats but no focal neurological signs. Urine Cryptococcal Antigen (CrAg) is positive by lateral flow assay. Serum CrAg is also positive. CSF examination is pending. How should cryptococcal antigenemia in HIV be managed per WHO 2022 guidelines, if the lumbar puncture is NEGATIVE for meningitis?
- A Start ART immediately; no antifungal needed if CSF is negative
- B Amphotericin B induction followed by fluconazole
- C Pre-emptive fluconazole 800 mg/day for 2 weeks then 400 mg/day maintenance ✓
- D Itraconazole prophylaxis at 200 mg/day
Explanation
WHO 2022 HIV guidelines recommend that HIV patients with positive serum CrAg (cryptococcal antigenemia) without evidence of meningitis on LP should receive pre-emptive antifungal therapy to prevent development of cryptococcal meningitis. Fluconazole 800 mg/day for 2 weeks followed by 400 mg/day for 8 weeks, then 200 mg/day maintenance until CD4 >200 for 6 months on ART. ART is deferred for 4–6 weeks after starting antifungal to avoid immune reconstitution inflammatory syndrome (IRIS). Amphotericin B induction is required for confirmed cryptococcal meningitis, not asymptomatic antigenemia.
Reference: Harrison's Principles of Internal Medicine, 21st ed.
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Written and medically reviewed by the StethoPrep medical team.