Abstract
In a purpose to evaluate the effect of V-A bypass as the most sinple mechanical assist for the heart in clinical use, changes in haemodynamics and blood gas analyses were investigated during high flow V-A bypass of 11/min for 10 healthy dogs. Acid-base balance wa rot mrrerted di rinca all the nroeedure.
Aortic flow did not decrease despite high flow bypass, resultl.rin high output state as a whole. No decrease in arterial pressure was noted, as a result of decrease in peripheral vascular resistance. Haemodynamics deteriolated after 60min of bypass, suggesting time limit of high flow V -A bypass for healthy dog in these condition.
