[Coronary circulation and myocardial oxygen cosumption after cardioplegic arrest (author's transl)].

Coronary blood flow, myocardial oxygen consumption, and cardiac hemodynamics was measured before and after cardiopulmonary bypass in two group of patients (7 and 4) with minor congenital heart disease where cardiac arrest was induced by means of "cardioplegin" or "external surface cooling" (Shumway). Only myocardial oxygen consumption was reduced 20% after bypass in the "cardioplegin" group; all other measured parameters remained essentially constant.