Rheumatic Fever Management Guidelines

Secondary Prophylaxis

The American College of Cardiology recommends that all patients with a history of rheumatic fever or rheumatic heart disease require long-term antibiotic prophylaxis to prevent recurrent episodes and progression of valvular damage 1, 2
The American Heart Association recommends benzathine penicillin G 1.2 million units intramuscularly every 4 weeks as the gold standard prophylaxis regimen with Class I, Level A evidence 3, 4
Intramuscular benzathine penicillin G is approximately 10 times more effective than oral antibiotics in preventing recurrence 3
For high-risk patients or those with recurrence despite adherence to the 4-week regimen, the American College of Cardiology recommends administering benzathine penicillin G every 3 weeks 3, 5
The American College of Cardiology recommends penicillin V 250 mg orally twice daily for children or 500 mg 2-3 times daily for adolescents/adults as an alternative regimen for penicillin allergy 3, 4
The American College of Cardiology recommends sulfadiazine 1 gram orally once daily for adults or 0.5 gram once daily for patients weighing ≤27 kg as an alternative regimen for penicillin allergy 1, 3
The American College of Cardiology recommends macrolide or azalide antibiotics for patients allergic to both penicillin and sulfadiazine, but avoids them in patients taking cytochrome P450 3A inhibitors 1, 2

The American College of Cardiology recommends continuing prophylaxis for 10 years after the last attack or until age 40 years, whichever is longer, for patients with rheumatic fever and carditis and residual heart disease 1, 2, 3
The American College of Cardiology recommends considering lifelong prophylaxis for patients at high risk of group A streptococcus exposure 1, 3
The American College of Cardiology recommends continuing prophylaxis for 10 years after the last attack or until age 21 years, whichever is longer, for patients with rheumatic fever and carditis but no residual heart disease 1, 2, 3
The American College of Cardiology recommends continuing prophylaxis for 5 years after the last attack or until age 21 years, whichever is longer, for patients with rheumatic fever without carditis 1, 2, 3

The American College of Cardiology recommends administering a full therapeutic course of penicillin to eradicate residual group A Streptococcus, even if throat culture is negative at diagnosis 3, 5
The American College of Cardiology recommends initiating long-term antimicrobial prophylaxis immediately once acute rheumatic fever is diagnosed 3
The American College of Cardiology recommends providing adjunctive therapy with acetaminophen or NSAIDs for moderate to severe symptoms or high fever, but avoids aspirin in children due to Reye's syndrome risk 5

The American College of Cardiology recommends applying guideline-directed medical therapy including diuretics, ACE inhibitors or ARBs, beta-blockers, aldosterone antagonists, and sacubitril/valsartan when left ventricular systolic dysfunction develops 2, 5
The American College of Cardiology recommends avoiding abrupt lowering of blood pressure in patients with stenotic valve lesions 2
The American College of Cardiology recommends evaluating all patients with symptomatic severe rheumatic mitral stenosis for percutaneous mitral balloon commissurotomy or mitral valve surgery within 3 months of diagnosis 5

The American Heart Association no longer recommends routine endocarditis prophylaxis for patients with rheumatic heart disease, unless they have prosthetic cardiac valves, prosthetic material used for valve repair, or previous infective endocarditis 1, 2, 3, 4
The American Heart Association recommends using an agent other than penicillin for patients receiving penicillin prophylaxis for rheumatic fever who require endocarditis prophylaxis for dental procedures 4

The American College of Cardiology recommends administering influenza and pneumococcal vaccinations according to standard recommendations 2, 5
The American College of Cardiology recommends encouraging regular aerobic exercise to improve cardiovascular fitness in patients with asymptomatic valvular heart disease 2

Acute rheumatic fever can relapse when a patient with a prior episode acquires a new Group A streptococcal pharyngitis; recurrence may worsen existing rheumatic heart disease or produce new cardiac damage even in individuals who had no cardiac involvement initially. Class I, Level A evidence (American Heart Association). 6, 7
Each recurrence progressively increases the severity of rheumatic heart disease and can precipitate new‑onset cardiac disease in patients who were free of carditis during the first episode. Class I, Level A (American Heart Association). 6, 7
Recurrence may occur despite optimal treatment of symptomatic pharyngitis, and even asymptomatic streptococcal infections can trigger a new rheumatic fever episode. Class I, Level A (American Heart Association). 6, 7
The likelihood of recurrence rises with each additional prior attack, making secondary prophylaxis increasingly essential. Class I, Level A (American Heart Association). 6, 7

Before starting long‑term prophylaxis, a full therapeutic course of penicillin should be administered to eradicate any residual Group A streptococcal colonization, even if throat culture results are negative. Class I, Level A (American Heart Association). 6, 7

Clinical Scenario	Recommended Minimum Duration (whichever is longer)
Prior rheumatic fever with carditis and residual valvular disease	10 years after the last attack or until age 40 years (may be lifelong).
Prior rheumatic fever with carditis but without residual valvular disease	10 years after the last attack or until age 21 years.
Prior rheumatic fever without carditis	5 years after the last attack or until age 21 years.
High‑risk occupational or community exposure (e.g., teachers, daycare workers, healthcare workers, military recruits, crowded living conditions)	Consider lifelong prophylaxis.

These duration recommendations are based on Class I, Level A evidence from the American Heart Association.* 6, 7

Immediate treatment of streptococcal infections in family members of patients with current or prior rheumatic fever is recommended to reduce the risk of recurrence. Class I, Level B (American Heart Association). 6, 7

In patients with a documented prior rheumatic fever or established rheumatic heart disease, a less stringent set of criteria may be used for diagnosing recurrence: either 2 major criteria, 1 major + 2 minor criteria, or 3 minor manifestations are sufficient when a concurrent Group A streptococcal infection is documented. Class IIb, Level C (American Heart Association). 8
When only minor manifestations are present, other more likely causes must be excluded before a recurrence diagnosis is made. Class I, Level C (American Heart Association). 8