Summary
In an attempt to elucidate the function of an aorto-coronary bypass in patients with
coronary artery obliterative disease, intravenous injection of etilefrine was used
to bring about variations of central hemodynamics. Etilefrine proved to cause a significant
increase of cardiac output (OPA), mean systemic blood pressure and aorto-coronary
bypass flow. Calculations of peripheral myocardial resistance showed a rather pronounced
decrease in all vascular regions studied. There was no change of central venous pressure.
The decrease of the myocardial vascular resistance, as shown by the increase of aorto-coronary
bypass flow, is indicative of the myocardial vascular capacity. Hence, it may be of
value as a prognostic test.
Key-Words:
Etilefrine - Coronary blood flow - Cardiac output - Central venous pressure - Aorto-coronary
bypass
