A 5-year-old child with confirmed acute rheumatic fever and carditis has been started on benzathine penicillin prophylaxis. According to current guidelines, for how long should secondary prophylaxis be continued if he has rheumatic carditis with persistent valvular disease?

• A Until age 21 years or 10 years after last attack, whichever is longer
• B Until age 40 years or 10 years after last attack, whichever is longer ✓
• C For 5 years or until age 21 years, whichever is longer
• D For life if there is persistent valvular disease

Explanation

Secondary prophylaxis duration is based on risk of recurrence and its potential consequences. Per WHO and AHA/World Heart Federation guidelines, patients with rheumatic carditis and persistent valvular disease (the highest-risk group) should receive secondary prophylaxis until age 40 or for 10 years after the last rheumatic attack, whichever is longer. In some patients with severe or operated valvular disease, lifelong prophylaxis may be considered. The 'until age 21 or 10 years' guideline applies to carditis without residual valvular disease. Benzathine penicillin G 1.2 MU IM every 3–4 weeks is the recommended regimen.

Reference: Ghai Essential Pediatrics, 10th ed.

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