Medical Definition of Atrial sound

1. The sound produced in late diastole in association with ventricular filling due to atrial systole and related to reduced ventricular compliance. It is a low frequency oscillation that may be normal at older ages owing to a physiologic decline in ventricular compliance but is nearly always abnormal at younger ages if it is of high intensity or palpable. It is common in ventricular hypertrophy, particularly with hypertension, and is almost invariable during acute myocardial infarction. Fourth heart sounds may arise from the right or left ventricle or both. Synonym: atrial sound. (05 Mar 2000)

Atrial Sound Pictures

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Lexicographical Neighbors of Atrial Sound

atrial extrasystole
atrial fibrillation
atrial fibrillations
atrial flutter
atrial function
atrial fusion beat
atrial gallop
atrial granule serine proteinase
atrial myxoma
atrial natriuretic factor
atrial natriuretic peptide
atrial premature complexes
atrial premature contraction
atrial septum
atrial sound (current term)
atrial synchronous pulse generator
atrial systole
atrial tachycardia
atrial transport function
atrial triggered pulse generator
atrial ventricular canal defect

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