Essential Heart Sounds

Summation Gallop at 120 beats per minute - Lesson

When the heart beats very rapidly, as in this recording, the diastolic period is compressed. This results in the third and fourth sounds merging, creating a single loud sound. Use the 'Visual' tab to view an animation of an enlarged left ventricle with decreased left ventricular contractility and a minimally enlarged left atrium.

Listen

patient thorax when auscultating by stethoscope

The patient was supine during auscultation.

Visualize

Observe

The cardiac animation shows an enlarged left ventricle with decreased left ventricular contractility and a minimally enlarged left atrium.