Left and Right Ventricular Systolic Function and Exercise Capacity with Coronary Artery Disease Douglass A. Morrison, MD, James R. Stovall, CNMT, and Charles Barbiere, RN, GRIT

This proqe&ive study of symptom-limited supine ergometry was umduckdtodeterminethe contrikrtiom of tight ventricular (RV) and left ventricular (LV) systolll fun&on to the exercise capadtyofacohortofpatkntswithcoromuyartery disease (CAD). Pattents with unstable angina, angiographically proven CAD (n = 53) and stable symptoms after medlcal therapy or angiop&sty were included. Documented myocardiil infarction (22 weeks before exercise) was present in 43 of 53 patients. Angina was the limiting symptom in 11 of 53; the other 42 stop@ exerdse wlth dyspnea or fatigue, or both. Oxygen consumption was measmed on-line during exermetabok cart. RV ejection fractii cisewltha and LV ejection fraction were measured by validated methods from gated blood pool radionudide ve&kdography. There were weak but statlstically significant cmfdatlls between exerdse oxygen consumption and exercise RV ejection fraction (r = 0.30, p

Left and right ventricular systolic function and exercise capacity with coronary artery disease.

This prospective study of symptom-limited supine ergometry was conducted to determine the contributions of right ventricular (RV) and left ventricular...
548KB Sizes 0 Downloads 0 Views