Clinical Scenario:
A 10-year-old boy is diagnosed with acute rheumatic fever with moderate carditis and mitral regurgitation. He is treated with benzathine penicillin and high-dose aspirin (80 mg/kg/day). After 3 weeks, he is afebrile, his joint symptoms have resolved, and his ESR and CRP have returned to normal. Echocardiography shows persistent moderate mitral regurgitation, with no evidence of worsening cardiac involvement.
What is the most appropriate next step regarding his aspirin therapy?
A. Continue the same aspirin dose until mitral regurgitation completely resolves
B. Continue the same aspirin dose indefinitely because carditis was present
C. Begin gradually tapering the aspirin dose
D. Stop aspirin immediately once inflammatory markers normalize
E. Stop aspirin only after completing secondary penicillin prophylaxis
Correct answer & Explanation:
Correct answer: C. Begin gradually tapering the aspirin dose
Discussion: Rheumatic Heart Disease
High-dose aspirin is used as an anti-inflammatory treatment during the acute phase of rheumatic fever. It should be continued while there is evidence of active inflammation and then gradually tapered once clinical symptoms and inflammatory markers have resolved.
In this child, fever and joint symptoms have resolved and ESR/CRP have normalized, indicating resolution of the active inflammatory phase. Therefore, aspirin can be tapered.
Importantly, persistent mitral regurgitation does not necessarily indicate ongoing active inflammation. Valvular dysfunction may persist after the acute inflammatory phase has subsided, and complete echocardiographic resolution is not required before tapering anti-inflammatory therapy.
Why the other options are incorrect
- A. Incorrect. Persistent mitral regurgitation does not require continued high-dose aspirin until the regurgitation disappears.
- B. Incorrect. Aspirin is used for control of the acute inflammatory process, not as long-term treatment for residual valvular disease.
- C. Correct. Clinical improvement together with normalization of inflammatory markers supports tapering the anti-inflammatory therapy.
- D. Incorrect. Aspirin should generally be tapered rather than stopped abruptly after the acute inflammatory phase has resolved.
- E. Incorrect. Secondary benzathine penicillin prophylaxis is intended to prevent recurrent rheumatic fever and is independent of the duration of aspirin therapy.
Clinical Pearl
In acute rheumatic fever, taper anti-inflammatory therapy according to resolution of clinical and laboratory inflammation—not according to complete disappearance of echocardiographic valvular regurgitation.
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References:
- Gewitz MH, et al. Revision of the Jones Criteria for the Diagnosis of Acute Rheumatic Fever in the Era of Doppler Echocardiography. Circulation. 2015;131:1806–1818.
- World Health Organization. WHO guideline on the prevention and diagnosis of rheumatic fever and rheumatic heart disease. Geneva: WHO; 2024.
