Intraaortic balloon counterpulsation Principle

A 30-40ml balloon is placed in the descending aorta. The balloon is inflated with helium during diastole, thus increasing diastolic blood pressure above the balloon. This serves to increase coronary and cerebral perfusion. The balloon is deflated during systole, thus decreasing peripheral resistance and increasing stroke volume. No pharmacological technique exists which can increase coronary blood flow while reducing peripheral resistance. Intra-aortic balloon counterpulsation may improve cardiac performance in situations where drugs are ineffective.

0 0

Post a comment