Usefulness of tissue Doppler echocardiography to predict perioperative cardiac events in patients undergoing noncardiac surgery.

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.