Abstract
Hemodynamic and metabolic effects of pulsatile and non pulsatile assisted circulation during the course of meaning from the cardiopulmonary bypass with the assist ratios at 100, 50, and 20% were compared on the failing heart in the 12 mongrell dogs. Irrespective of the assist devices used, myocardial blood flow decreased and converged to 50ml/min/100g as the DPTI/TTI increased greater than 1.2. The recovery from heart failure was better in the group with DPTI/TTI over 1.2 than the other group.
