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The Click-Murmur SyndromeA Clinical Problem in Diagnosis and Treatment
Melvin D. Cheitlin, MD;
Randolph C. Byrd, MD
JAMA. 1981;245(13):1357-1361.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings. |
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AUSCULTATORY sounds of a late systolic murmur, with or without a preceding nonejection click, have been generally recognized since the late 1950s to result from abnormal movement of the mitral valve apparatus during systole. Although the mitral valvular origin of these sounds was suspected before, it was only after left ventricular angiography showed the late systolic murmur to result from mitral insufficiency, which was secondary to the abnormal billowing of the mitral leaflets into the left atrium, that the true nature of these auscultatory findings was recognized. The patient with a nonejection click, with and without a systolic murmur, has been described in the literature under a wide variety of names (Table 1).
With the demonstration by echocardiography of the abnormal posterior systolic movement of both aortic and mural leaflets of the mitral valve, it has been possible to identify noninvasively the patients with an abnormally prolapsing mitral valve, even
. . . [Full Text PDF of this Article]
Author Affiliations
From the Division of Cardiology, San Francisco General Hospital, University of California, San Francisco.
Footnotes
This article is one of a series sponsored by the American Heart Association.
Reprint requests to Division of Cardiology, San Francisco General Hospital, Room 5G16, University of California, San Francisco, CA 94110 (Dr Cheitlin).
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