目的:心脏外科手术后常常由于未测阴离子水平的升高而引起酸中毒,其意义尚未明确。验证未测阴离子和乳酸预测心脏外科手术后主要不良事件的能力,并测定在低心输出量状 OBJECTIVE: The significance of acidosis after cardiac surgery is often due to an increase in the level of unidentified anions. The ability of non-detected anions and lactate to predict major adverse events after cardiac surgery was tested and the effect of low-cardiac output