See Also: fourth heart sound(medicine)
third heart sound(medicine)
first heart sound(medicine)
second heart sound(medicine)
congenital heart block(medicine)
congenital heart disease(medicine)
Congenital heart disease(health)
Disease, congenital heart(health)
disease, congenital heart(medicine)
Congenital heart problems(health)

congenital cardiomyopathy (medicine) and fourth heart sound (medicine)


congenital cardiomyopathy (medicine)


congenital cardiomyopathy
<radiology> Endocardial fibroelastosis, myocarditis, glycogen storage disease (Pompe's), anomalous origin of left coronary artery from pulmonary artery


fourth heart sound (medicine)


fourth heart sound


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.