In 21 dogs on cardiopulmonary bypass with ventricles kept empty, the mean beating but
nonworking myocardial oxygen consumption (mVO2) was 3.8 ml/min per 100 g at a heart …

Critical intracellular myocardial oxygen tension was determined by optical spectroscopic
measurement of myoglobin oxygen saturation in crystalloid-perfused guinea pig hearts …

In the cross-circulated dog hearts arrested with KCl, we examined the effects of left
ventricular volume and dobutamine on the resting oxygen consumption (MVO2). The …

METHODS The Langendorff blood-perfused dog heart and Langendorff Tyrode-perfused
rabbit heart were employed (2). In the latter the left ventricular cavity contained a saline-filled …

Cardiac oxygen consumption in canine heart-lung preparations was compared at 37° C and
27° C in relation to equal cardiac work per unit of time and per beat. Per unit of time the …

Isolated rabbit hearts were perfused according to Langendorff at a temperature of 38° C and
a pressure of 5.9 kPa with gassed Tyrode solution. Gas mixtures containing 5% CO2 and 15 …

The influence of acute changes in systemic hemodynamics on the rate of oxygen utilization
by the left ventricle has been studied in intact anesthetized dogs. Certain types of …

Detailed arguments are presented for the adequacy of oxygenation of the isolated perfused
rat heart preparation when subjected to a work load according to the model of Neely. Lactate …

Methods Pigs weighing 18-25 kg were anesthetized by the intravenous injection of sodium
pentobarbital (20 mg/kg). The thorax was opened by a midsternal incision. Venous blood …

Comparisons have been made in the open chest dog of the oxygen usage of the left
ventricle whose external work has been reduced to zero by 4 different procedures. The …