Clinical Scenario:
A 5-year-old boy with confirmed HIV infection, who has not yet started antiretroviral therapy, presents with a 2-week history of fever, persistent headache, vomiting and progressive lethargy. On examination, he has neck stiffness and a left sixth cranial nerve palsy. Cerebrospinal fluid findings are consistent with tuberculous meningitis. There is no evidence of drug-resistant tuberculosis.
Which of the following is the most appropriate treatment strategy?
A. Start ART immediately
B. Start TB treatment, then ART within 2 weeks
C. Start TB treatment, then ART after 4–8 weeks
D. Complete TB treatment before starting ART
E. Start ART only if CD4 <50 cells/mm³
Correct answer & Explanation:
Correct answer: C. Start TB treatment, then ART after 4–8 weeks
Explanation
In a child with HIV-associated tuberculous meningitis, anti-tuberculous treatment should be started promptly. However, ART should not be started immediately because early ART in TB meningitis increases the risk of severe neurological immune reconstitution inflammatory syndrome (IRIS).
WHO recommends initiating ART between 4 and 8 weeks after starting TB treatment in people with HIV-associated TB meningitis.
This differs from HIV-associated pulmonary TB, where ART should generally be started within 2 weeks of beginning TB treatment.
Why the other options are incorrect
A. Start ART immediately — Incorrect:
Early ART is avoided in TB meningitis because of the risk of severe CNS IRIS.
B. ART within 2 weeks — Incorrect:
This is appropriate for most HIV-associated TB, but TB meningitis is an important exception.
D. Complete TB treatment before ART — Incorrect:
This would unnecessarily delay treatment of HIV and increase morbidity and mortality.
E. ART only if CD4 <50 — Incorrect:
ART is indicated regardless of CD4 count; the issue here is when to initiate it.
References:
- World Health Organization. WHO consolidated guidelines on tuberculosis: module 6: tuberculosis and comorbidities. 2nd ed. Geneva: World Health Organization; 2025.
- World Health Organization. WHO consolidated guidelines on tuberculosis: module 5: management of tuberculosis in children and adolescents. Geneva: World Health Organization; 2022.
