CARDIAC OUTPUT RESERVE: A NOVEL MARKER OF SYMPTOMS AND EXERCISE CAPACITY IN AORTIC STENOSIS

Matthew Lumley,Rupert Williams,Satpal Arri,Kaleab N Asrress,Michael S Marber,Ronak Rajani, J T Chambers,Divaka Perera

JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY（2015）

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摘要

Traditional measures of AS severity neglect the effect of dynamic left ventricular function and the systemic vasculature. We hypothesized that cardiac output reserve (COR), the ratio of cardiac output at maximal exercise and cardiac output at rest, would be the best predictor of exercise capacity

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