体外反搏对失血性休克狗循环紊乱的治疗作用

用彩色显微电视录像和微循环图象分析系统,观察体外反搏对重症失血性休克狗大循环和微循环的效应。结果查明,体外反搏使休克早期下降的中心静脉压和平均动脉压迅速回升。反搏后120分钟,休克时紊乱的球结膜微循环恢复到接近正常,半数动物存活3天以上。证明体外反搏可改善失血性休克循环功能,显著提高存活率。

Therapeutic effect of external counterpulsation on the circulatory disturbance during hemorrhagic shock

An irreversible hemorrhagic shock model was produced on dog. The effect of external counterpulsation on systemic circulation and microcireulation was observed by using a model CN-1821 colour microscopic TV set (Hitachi Denshia Ltd.) and a YKMICAS multiple parameters computer analysis system of microcirculation image. It was shown that 10 min after external counterpulsation treatment the decreased central venous pressure and mean arterial pressure during hemorrhagic shock rose and 120 min after treatment the microcirculatory disorder of conjunctiva in shock state, including vessel diameter, blood velocity, and blood flow, nearly returned to normal. Half of the animals survived more than 3 days. These results indicated that the application of external counterpulsation could improve the circulatory disturbance markedly in hemorrhagic shock, which led to increased survival rate.