systolic click

sys·tol·ic click

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.

systolic click

Etymology: Gk, systole, contraction; Fr, cliqueter, to click
a sharp, clicking sound heard in mid- or late systole and believed to originate from the abnormal motion of the mitral valve. The most frequent cause of systolic clicks is prolapse of a mitral valve leaflet, in which case there may be an associated late systolic regurgitant murmur, sometimes called the click-murmur syndrome. Compare ejection click.
References in periodicals archive ?
01 disorders, n (%) ASD, n 5 VSD, n 1 7 Marfan syndrome, n 1 1 Ehler-Danlos 1 - syndrome, n Systolic click, n 28 30 <0.
Patients with the classic form had analogically more frequently audible systolic clicks (28 vs.

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