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 ?
Common symptom is chest discomfort, sign is non-ejection systolic click.
OBSERVATION: Although the auscultatory findings of Mitral Valve Prolapse has been known for a century, only three decade have elapsed since wide spread recognition of association of mid systolic clicks or late systolic murmurs or both with clinical features including atypical chest pain, palpitation, stroke and sudden death.
On auscultation of precordium, first and second heart sounds were normal, with ejection systolic click followed by grade 4 early systolic murmur radiating to both carotids which increased in intensity on expiration.
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.
She had multiple systolic clicks at the apex and a blowing systolic murmur at the apex when standing.
They cited the work of Scadding and Wood,[6] who described a similar mechanism between the visceral and parietal pleura as the source of systolic clicks in a left pneumothorax.

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