https://www.selleckchem.com/pr....oducts/abbv-2222.htm
Aortic acceleration time (AAT) and the ratio of AAT to ejection time (AAT/ET) are relatively new echocardiographic measures of the severity of aortic stenosis (AS). This study investigated the utility of transesophageal echocardiography (TEE) measurements of AAT and AAT/ET to predict the severity of AS under intraoperative conditions. Retrospective diagnostic accuracy study. St. Vincent's Hospital, Melbourne, Australia, from July 2007 to February 2017. The study comprised 199 patients who underwent aortic valve replacement (AVR) and w
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