Comparison Post-Streptococcal Reactive Arthritis (PSRA) & Acute Rheumatic Fever (ARF)
Bimodal: 8-14 years and 21-37 years.
5-15 years with peaking around 12 years.
Disease onset following streptococcal infection.
7-10 days (short).
10-28 days (longer).
Additive and persistent; large, small and axial joints.
Migratory, transient; large joints.
Acute phase reactants.
Response of arthritis to NSAIDs.
Poor to moderate.
Conflicting reports, but uncommon.
Major diagnostic criterion, between 60-70%.
For one year if echocardiogram is normal.
Long-term secondary antibiotic prophylaxis.
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