近十年来,国外已广泛应用漂浮导管监测急性心肌梗塞(acute myocardial infarction,AMI)时的血流动力学变化。其突出的优点是不需 X 线即能在床旁插置,操作较简单快捷,危险性小,可测定左室舒张末压(left ven-tricular end diastolic pressure,LVEDP)和心排出量等项最重要的血流动力学指标,对 AMI的诊断,指导治疗、判断预后、降低病死率等均有重大价值。 In the past decade, floating catheter has been widely used to monitor hemodynamic changes in acute myocardial infarction (AMI). Its prominent advantage is that it can be inserted at the bedside without X-ray, the operation is simple and quick, and the risk is small. The items such as left ventricular tachycardia diastolic pressure (LVEDP) and cardiac output can be determined The most important hemodynamic indicators, the diagnosis of AMI, guiding treatment, prognosis, reduce mortality are of great value.