Abstract
Two cases were reported in which coronary artery flow velocity (CAFV) were observed during Percutaneous Cardiopulmonary Support (PCPS) on and off. The first case is a 43-year-old man with DC-resistent VF due to acute myocardial infarction (AMI). Under the PCPS, PTCA to the right coronary artery was successed, and CAFV was recorded during pump on and off at left anterior descending artery. During pump off, small systolic antegrade flow, systolic flow reversal and steep decline of diastolic antegrade flow were observed under ventricular rhythm. During pump on (3.0L/min), these patterns were improved, and mean CAFV was increased. The second case is a 61-year-old man with electro-mechanical dissociation due to AMI (multi-vessel disease). Under ventricular standstill, CAFV was recorded at left main trunk. There was no effectve antegrade flow during pump off, and non-pulsatile flow was observed during pump on. PCPS may assist the coronary circulation.
