Abstract
The effects of acute ischemia on left ventricular volumes and function have been studied extensively in animal models and, more recently, in patients with coronary artery disease during percutaneous transluminal coronary angioplasty (PTCA) of the left coronary artery.ls2 Less attention, however, has been focused on the performance of the right ventricle in patients with chronic coronary artery disease or during acute occlusion of the right coronary artery (RCA). In patients with coronary artery disease, ischemia induced by balloon inflation during PTCA is a setting comparable to short-term coronary artery occlusion in the animal laboratory, and provides the opportunity to study the effects of acute ischemia on ventricular function in humans. We describe the effects of acute ischemia on right ventricular (RV) performance in patients undergoing PTCA of the RCA.
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