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[30 years mitral valve prolapse--what has stayed the same?]
1Klinik für Innere Medizin, Stiftsklinik Augustinum, München.
Abstract:
As a Result of echocardiographic diagnostic criteria that took too little account of underlying pathology, mitral valve prolapse has, in the past, been diagnosed far too frequently, and has been associated with commonly occurring unspecific symptoms (mitral valve prolapse syndrome). The results of epidemiological studies have led to a new definition of diagnostic criteria. The diagnosis mitral valve prolapse is established in the first instance by auscultation. Echocardiography supports the diagnosis, provides information about the prognosis, and, with a high level of reliability, detects complications. Major complications of this condition are endocarditis and mitral valve insufficiency, as also--less well documented--cerebral embolism and sudden heart death. Particularly at risk of developing complications are those patients with a systolic murmur reflecting an already present mitral valve insufficiency. This patient group must be monitored for progressive mitral insufficiency and, in the presence of relevant exposure, requires endocarditis prophylaxis.
Insights
Mitral valve prolapse is now diagnosed more accurately using auscultation, with echocardiography aiding prognosis and complication detection. Patients with systolic murmurs require monitoring for mitral insufficiency and endocarditis prophylaxis.
Area of Science:
- Cardiology
- Diagnostic Imaging
Context:
- Overdiagnosis of mitral valve prolapse (MVP) occurred due to imprecise echocardiographic criteria and association with non-specific symptoms (MVP syndrome).
- Epidemiological studies prompted revised diagnostic criteria for MVP.
Purpose:
- To redefine diagnostic criteria for mitral valve prolapse.
- To clarify the roles of auscultation and echocardiography in MVP diagnosis and management.
Summary:
- Mitral valve prolapse diagnosis is primarily established by auscultation.
- Echocardiography confirms the diagnosis, assesses prognosis, and reliably identifies complications.
- Major complications include endocarditis, mitral insufficiency, cerebral embolism, and sudden cardiac death.
Impact:
- Revised diagnostic approaches improve accuracy in identifying mitral valve prolapse.
- Identifying high-risk patients with systolic murmurs allows for targeted monitoring and prophylaxis.
- Reduced overdiagnosis prevents unnecessary patient anxiety and healthcare resource utilization.