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Infective endocarditis associated with mitral valve prolapse in a patient with Klinefelter syndrome
Yasushi Ueki1, Atsushi Izawa, Souichiro Ebisawa
1Department of Cardiovascular Medicine, Shinshu University School of Medicine, Japan.
Abstract:
We herein report a case of infective endocarditis associated with mitral valve prolapse (MVP) in a 34-year-old man with Klinefelter syndrome. The patient was admitted with a fever and headache that had persisted for three weeks. Repeated blood cultures showed growth of Streptococcus oralis. Echocardiography demonstrated severe mitral regurgitation with a large vegetation attached to the prolapsed anterior leaflet. Surgical plasty of the mitral valve was performed because the vegetation measured over 10 mm in diameter and there was a risk of recurrence of embolic complications. This case demonstrates the link between MVP and Klinefelter syndrome and highlights the importance of performing cardiovascular screening and preventing endocarditis.
Insights
This case report details infective endocarditis in a patient with Klinefelter syndrome and mitral valve prolapse (MVP). Early diagnosis and surgical intervention were crucial for managing this severe cardiovascular complication.
Area of Science:
- Cardiology
- Genetics
- Infectious Diseases
Background:
- Klinefelter syndrome is associated with cardiovascular abnormalities, including mitral valve prolapse (MVP).
- Infective endocarditis is a serious infection that can affect heart valves.
Observation:
- A 34-year-old male with Klinefelter syndrome presented with prolonged fever and headache.
- Echocardiography revealed severe mitral regurgitation due to a large vegetation on a prolapsed mitral valve.
Findings:
- Blood cultures identified Streptococcus oralis as the causative agent.
- Surgical mitral valve plasty was performed due to vegetation size (>10 mm) and embolic risk.
Implications:
- This case highlights a potential link between Klinefelter syndrome and MVP.
- Emphasizes the need for cardiovascular screening in Klinefelter syndrome patients.
- Underscores the importance of endocarditis prevention and prompt management in this population.
Related Concept Videos
Mitral Stenosis I: Introduction
Mitral Valve Prolapse I: Introduction
Endocarditis I: Introduction
Mitral Stenosis III: Medical Management
Mitral Valve Prolapse II: Assessment and Management
Mitral Stenosis II: Clinical features and Diagnostic Tests

