Definition of Gallop

A pair of extra heart sounds the cardiologist can hear with the bell of the stethoscope during diastole, so-named because they occur in rapid succession and sound like the hooves of a galloping horse.

The characteristic sound is that of a deep-toned thud.

A gallop often exists with tachycardia (rapid, regular heart rate) and generally signals ventricular dysfunction such as might follow heart attack

See also ARRHYTHMIA.

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