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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

auscultation sound from lesson
waveform

Patient Recording

patient heart or lung sound
Summation Gallop at 120 beats per minute

Patient Recording - Half Speed

patient heart or lung sound
Summation Gallop at 120 beats per minute

Position

Patient position
The patient's position should be supine.

Listening Tips

Diastole:Shortened diastole, S3 & S4 superimposed

Waveform (Phonocardiogram)



Observe Cardiac Animation

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

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Summation Gallop at 120 beats per minute | #87


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