Gallop Rhythm of the Heart

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Abstract
The 2 fundamental types of gallop are ventricular gallop and atrial gallop. Adequate cardiac acceleration modifies these gallops and may produce a summation gallop, an augmented ventricular gallop, or an augmented atrial gallop. The summation and augmented gallops were examined and their relation to the 2 fundamental gallops was quantitated. The cardiac rate at which summation and augmentation occur is unique. A graph and 2 corresponding equations were derived which relate the summation cardiac rate and corresponding cycle length to familiar electrocardiographic and phonocardiographic intervals.