NONINVASIVE EVALUATION OF CORONARY FLOW (CF) WITH TRANSESOPHAGEAL 2-D DOPPLER (TE-2DD) DURING IABP

Abstract

To assess the clinical effect of diastolic augmentation during IABP on CF, three patients underIABP support were studied within six hours after open heart surgery by TE-2DD. TE-2DD could clearly visualized the anatomy and CF of the left main coronary artery with a small peak velocity in systole (SP) and a large peak velocity in diastole (DP). Average DP was 44.7±29.0 which was remarkably increased by TABP support and the average percent increment of DP was 33.0±7.3% during TABP support. TE-2DD can be a potentially useful diagnostic tool for the evaluation of CF of the ischemic failing heart during mechanical support in closed chest human.