Effects of right ventricular ischemia on left ventricular geometry and the end-diastolic pressure-volume relationship in the dog

Abstract

We studied the effects of right ventricular ischemia on left ventricular three-dimensional geometry and the end-diastolic pressure-volume relationship in 16 open-chest dogs before and after pericardiectomy. Left ventricular volume was calculated from three internal dimensions measured with ultrasonic crystals. In one group of eight dogs, right coronary artery (RCA) occlusion for 2 min with the pericardium intact reduced aortic flow by 24 ± 9% (p < .001) and septal-lateral dimension by 8 ± 5% (p