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Mitral stenosis associated with valvular tophi
Mayo Clinic Proceedings
|July 1, 1984
Insights
Chronic tophaceous gout is rare, especially in the heart. This case highlights valvular tophi causing severe mitral stenosis, a condition rarely seen with gouty deposits.
Area of Science:
- Cardiology
- Rheumatology
- Pathology
Background:
- Chronic tophaceous gout, characterized by urate crystal deposition, has decreased due to effective urate-lowering therapies like allopurinol and probenecid.
- Cardiac involvement in gout, particularly tophi formation within heart valves, is exceptionally rare in medical literature.
Observation:
- A rare case of severe mitral stenosis was identified.
- The mitral valve was significantly affected by tophaceous deposits, suggesting a primary role in the stenosis pathogenesis.
Findings:
- Echocardiography, surgical pathology, and chemical analysis confirmed the presence of valvular tophi as the cause of severe mitral stenosis.
- The findings demonstrate a direct link between gouty deposits and significant valvular heart disease.
Implications:
- This case underscores the importance of considering uncommon etiologies for valvular heart disease, even in the context of reduced gout prevalence.
- Understanding the pathogenesis of valvular tophi can inform diagnostic and therapeutic strategies for rare cardiac manifestations of chronic gout.
Abstract:
Chronic tophaceous gout has become less common since the introduction of allopurinol and probenecid. Cardiac tophi have rarely been reported. In this article, we report a case of severe mitral stenosis in which valvular tophi played a major role in the pathogenesis. The case was well substantiated by echocardiography, surgical pathology, and chemical analysis.