Hagl S, Vahl C F
Chirurgische Klinik, Universität Heidelberg.
Z Kardiol. 1990;79 Suppl 4:107-17.
Intraoperative measurement of hemodynamics provides objective data supporting improvement of surgical and anaesthesiological treatment. Several methods including the thermodilution method, application of ultrasonic flow meters, use of the computed pressure gradient technique, application of transoesophageal color flow mapping and other cardiovascular applications of ultrasound are discussed with respect to their benefits and limitations in a clinical routine environment in cardiac surgery. According to our experiences the application of intraoperative transoesophageal doppler echocardiography and use of electromagnetic flow measurements are today the methods of choice. However, methodological limitations have to be regarded and additional intraoperative and clinical data are necessary whenever semiquantitative measurements of ultrasound techniques are used as basis for intraoperative judgement on the hemodynamic situation.
术中血流动力学测量可提供客观数据，支持手术和麻醉治疗的改进。本文讨论了几种方法，包括热稀释法、超声流量计的应用、计算压力梯度技术的使用、经食管彩色血流图的应用以及超声在心脏手术中的其他心血管应用，阐述了它们在心脏手术临床常规环境中的优点和局限性。根据我们的经验，术中经食管多普勒超声心动图的应用和电磁血流测量是目前的首选方法。然而，在将超声技术的半定量测量用作术中血流动力学状况判断依据时，必须考虑方法学的局限性，还需要额外的术中及临床数据。
