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Guidelines have not recommended routine echocardiography to predict perioperative cardiac events (PCE). We aimed to evaluate the prognostic significance of tissue Doppler echocardiography-derived E/E′ for risk stratification before noncardiac surgery. We reviewed 445 consecutive patients with cardiovascular diseases who had undergone tissue Doppler echocardiography before noncardiac surgery. The revised...
In this study, which is based on data collected from 1351 referred patients, we used myocardial perfusion single-photon emission computed tomography (SPECT) for risk stratification before non-cardiac surgery. We generated binary classifiers using support vector machine (SVM) and conventional linear models for predicting perioperative cardiac events. Input data comprising clinical and surgical risk...
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