Adult-Onset Still's Disease: A Rare Cause of Acute Severe Mitral Regurgitation
Adult-onset Still’s disease (AOSD) is a rare systemic inflammatory condition, typically presenting with fever, polyarthritis, and a transient maculopapular rash. Approximately 30% of AOSD cases involve cardiac complications. While pericarditis and myocarditis are the most commonly reported cardiac manifestations, valvular involvement is relatively rare. Here, we present a case that underscores the potential for sudden onset and rapid progression of valve involvement in patients with AOSD, even with ongoing treatment. This highlights the importance of systematic cardiac screening for all patients diagnosed with AOSD.
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