Summation Gallop at 120 beats per minute
Summation Gallop at 120 beats per minute
At a heart rate of 120 beats per minute, the diastolic period is shortened. This causes the third and fourth sound to be superimposed, creating a single loud sound. The anatomy video shows an enlarged left ventricle with decreased left ventricular contractility and a minimally enlarged left atrium.Auscultation Sounds
Patient Recording
Patient Recording - Half Speed Playback
Position
The patient's position should be supine.
Listening Tips
Diastole:Shortened diastole, S3 & S4 superimposedWaveform (Phonocardiogram)
Observe
//embedding heart animation
The cardiac animation shows an enlarged left ventricle with decreased left ventricular contractility and a minimally enlarged left atrium.
Authors
These authors contributed the audio recordings and text found in this reference guide: Jon Keroes, MD,Diane Wrigley, PA, and David Lieberman.Medically reviewed by Dr. Barbara Erickson, PhD, RN, CCRN.
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