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Query: UMLS:C0033377 (prolapse)
 11,717 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Mitral valve prolapse (MVP) is due to a heterogeneous group of conditions that may affect the mitral valve or the mitral valve apparatus. Although MVP may progress later in life to frank mitral insufficiency requiring mitral valve repair or may predispose to bacterial endocarditis, in most cases it is a benign, idiopathic condition without serious consequences. However, many investigators have documented that MVP is often associated with a constellation of signs and symptoms, which appear to constitute a distinct syndrome. These associated findings include autonomic dysfunction, frequent complaints of chest pain, palpitations, orthostasis, fatigue, dyspnea on exertion and anxiety. Although the risk of significant myocardial dysfunction or bacterial endocarditis appears to be related to patient sex, age and the severity of valvular prolapse and insufficiency, there appears to be little or no relations between the extent of prolapse and the degree of autonomic dysfunction or the severity of symptoms of chest pain, palpitations, dyspnea on exertion and anxiety. The development of uniform diagnostic standards for mental disorders has helped to make it possible to identify several related entities, including generalized anxiety disorder, panic disorder and agoraphobia; patients with these disorders frequently somatize their anxiety and complain of many symptoms which may be seen in patients with MVP. Although several studies have reported an increased frequency of MVP in patients with anxiety disorders, recent studies suggest that the conditions are not linked. Iatrogenic cardiac neurosis is common in both groups of patients.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Mitral valve prolapse: from syndrome to disease. 332 70

Electrocardiographic signs of mitral valve prolapse are essentially non-specific. Diagnosis must be based on the other methods, but whenever the diagnosis was established, the electrocardiographic abnormalities may have a certain significance to predict the natural course and prognosis. The reported results and those of our series of 111 cases were compared in detail. Resting and exercise electrocardiography of our series revealed no definite tendency of ST-T changes, arrhythmias and other abnormalities in cases with prolapse except a few signs. When the abnormalities were present, they were not related to the severity of prolapse, but premature ventricular contractions were more frequently observed in severe cases. Atrial fibrillation was observed in higher frequency in cases with mitral regurgitation. The other abnormalities were not conclusive to verify previous studies. When compared to 19 cases with neurocirculatory asthenia comfirmed by clinical tests including angiography, the similarity of electrocardiographic abnormalities was observed in many aspects, but arrhythmias were much more common in cases with mitral valve prolapse. On the other hand, exercise test was positive more frequently in cases with neurocirculatory asthenia. No conclusion was established as to the sites of prolapse and electrocardiographic abnormalities.
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PMID:[Clinical problems in mitral valve prolapse: an electrocardiographic review]. 368 Oct 7