Definition: criteria (proposed by T.D. Jones in 1944 and modified in 1965) used to make the diagnosis of rheumatic fever. There are five major criteria: carditis, polyarthritis, chorea, erythema marginatum, and subcutaneous nodules; minor criteria include fever, arthralgia, elevated erythrocyte sedimentation rate or C-reactive protein, and prolonged PR interval on ECG. Diagnosis requires evidence of recent group A ß-hemolytic streptococcal infection, plus two major and one minor criteria, or one major and two minor criteria; revised Jones criteria allow the diagnosis when indolent carditis or chorea exists with no other cause, or in patients with a previous history of rheumatic fever who have one major or two minor criteria in association with a recent streptococcal infection.
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