摘要
目的:研究应用主动脉内球囊反搏泵(IABP)对冠状动脉搭桥手术(CABG)后冠状动脉近 端血流速度的影响。方法:对CABG术后应用IABP的11例病人,经食道彩色多谱勒超声监测 CABG术后应用IABP在1:1气囊搏动情况下冠状动脉近端血流速度的情况,同时应用持续左心 功能监测仪(CCO)观察血流动力学的变化。结果:IABP明显增加冠状动脉血流均值和峰相血流 速度,舒张期流速和主动脉内平均流速于应用IABP后明显加快(P<0.05);CCO结果显示心排量 (CO)和心脏指数(CI)于应用IABP后即有增加的趋势,2小时明显恢复,48小时已经恢复到术前 水平。结论:IABP无可争议地增加了冠状动脉近端血流速度,使CABG术后左心功能恢复加快。
Objective: To evaluate the effect of intra - aortic balloon counterpulsation( IABP) on the proximal blood flow velocity of the coronary artery after coronary artery bypass grafting (CABG). Methods: The proximal blood flow velocity of the coronary artery and cardiac output during IABP of 1:1 mode were evaluated by transesophageal echocardiography and continuous cardiac output monitoring respectively in 11 patients after CABG. Results: Both of the mean and peak blood flow velocity of the coronary artery were significantly increased during IABP. The CO and cardiac index (CI) were also markedly increased immediately after applying IABP and recovered to the preoperative level 48h after IABP. Conclusions: IABP can undoubtedly increase the proximal blood flow velocity of the coronary artery and help for improving left cardiac performance after CABG.
出处
《生物医学工程与临床》
CAS
2000年第1期29-32,共4页
Biomedical Engineering and Clinical Medicine