heart sound


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heart sound

a noise produced within the heart during the cardiac cycle that can be heard over the precordium. It may reveal abnormalities in cardiac structure or function. Cardiac auscultation is performed systematically from the apex to the base of the heart or from base to apex, using a stethoscope to listen, initially with the diaphragm and then with the bell of the instrument. Standard heart sounds include S1, produced by the closure of the atrioventricular valves; S2, produced by the closure of the semilunar valves; S3; and S4. Additional heart sounds include clicks, gallops, murmurs, rubs, and snaps.

heart sound

Cardiology Any normal or abnormal sound heard by auscultation of the heart. See Fourth heart sound, Murmur, Third heart sound.
References in periodicals archive ?
The ability to label normal and abnormal heart sounds doubled; interpretation of normal and abnormal lung sounds improved by 50 percent; and bowel sounds interpretation improved threefold, demonstrating the effect of an adult-oriented, creative, yet practical method for teaching auscultation.
We begin the review of the history of listening to the fetal heart sounds by defining auscultation.
A normal heart sound (above, top) can be contrasted with cardiac sounds associated with various pathological conditions (middle and bottom).
The concert is part of a worldwide event that drew hundreds of thousands worldwide last year for peace and planetary transformation through toning or sounding the universal non-denominational heart sound, AH.
Contract award: milou heart sound monitoring software upgrade.
An echocardiogram explained how a patient with a third heart sound could have a typical murmur of mitral stenosis by demonstrating a large left atrial myxoma that fell into the mitral orifice early in each diastole causing a "tumor plop" followed by a mitral stenosis murmur because the orifice of the valve was almost completely occluded.
Additionally, the new edition features online content, including new dynamic cardiac imaging videos, heart sound recordings, and podcasts.
An expert in auscultation-the technical term for listening to the body's internal sounds, usually through a stethoscope--Johnson listened to Guion's heart and detected an intermittent third heart sound (otherwise known as [S.
The CD-ROM contains 3,700 practice questions, including alternate format and lung and heart sound questions.
Nasdaq: SPDE) today announced an exclusive multi-year marketing agreement involving Zargis' heart sound analysis software and 3M Littmann's next-generation electronic stethoscope.
South Ostrobothnia Hospital District acquires a direct award Milou heart sound monitoring software update to be compatible with Windows 7 MediWare Oy.
A hyperdynamic 4+/4+ left ventricular impulse was felt and a third heart sound was heard in the anterior axillary line.