Egorov T L, Lektorskiĭ B I, Itkin G P, Gus'kov I A, Khazen I Z
Med Tekh. 1976 Jul-Aug(4):57-9.
In tests on dogs specially devised cardiac massage appliances and a monitoring system synchronizing the mechanical massage with the R wave on the ECG were used in carrying out a synchronous mechanical chest massage in conditions of an experimentally induced incompetence of the cardiac ventricles. Optimal parameters of the hemodynamics were recorded with the massage proceeding in such a manner, when mechanical action on the cardiac ventricles coincided with termination of the maximum pressure period of the myocardium. The synchronous ancillary cardiac massage effected under conditions of ventricular incompetence was found to be attended by a rise of cardiac output and increased aortic pressure, falling tension in the auricles and normalization of the acid-base equilibrium figures. Synchronization of the massaging appliance operation with cardiac contractions is an effective method of assisted circulation in acute incompetence of the heart valves.
在对狗进行的实验中，使用了专门设计的心脏按摩装置和一个能使机械按摩与心电图上的R波同步的监测系统，在实验诱发心室功能不全的情况下进行同步机械胸部按摩。当以这种方式进行按摩时，记录到了最佳血液动力学参数，此时对心室的机械作用与心肌最大压力期的结束相吻合。发现在心室功能不全的情况下进行同步辅助心脏按摩时，心输出量增加，主动脉压升高，心房张力降低，酸碱平衡指标恢复正常。按摩装置的操作与心脏收缩同步是心脏瓣膜急性功能不全时辅助循环的有效方法。
