Abstract
Gallop rhythms constitute a very important part of the physical examination. The significance in terms of disturbed physiology varies with the timing of the gallop in the cardiac cycle and the clinical situation in which it is found. Atrial or presystolic gallops are found where a ventricle, either left or right, is suffering a systolic overload, as with hypertension in the great vessels, semilunar valve stenosis or myocardial damage. In hypertension and valvular stenosis an atrial gallop does not necessarily imply a poor prognosis. The ventricular gallop, occurring in the presence of hypertensive or ischemic heart disease is a more omnious sign indicating the presence of congestive heart failure.
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