This experiment was performed on 35 dogs anesthetized with pentobarbitalsodiom in abdominal cavity. These dogs were intabated and maintained respi-ration. The heart was exposed through a left lateral throacotomy

throughperistatic pump

blood in carotis was transported to left anterior descendingcoronary (LAD)

experimental myocardial ischemia modal was set up epicardiumelcctrocardiogram of 12 points left ventricular pressure(LVP) and mean arterialpressure (MAP) were recerded with 8-channel polygraph. Cardiac output wastecorded with MF-27 electromegnetic blood flowmeter. The experimental