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systolic click


Definition: a sharp, clicking sound heard during cardiac systole; when heard in early systole it is usually an ejection sound; in late systole the click usually signifies mitral insufficiency, as in the dysfunction of the mitral valvular apparatus when it prolapses into the left atrium during systole (see Barlow syndrome); rarely may also be due to pleuropericardial adhesions or other extracardiac mechanisms.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.