摘要
目的 :通过动物实验探讨一期动静脉转流术并水压逆向破坏深静脉瓣后 ,能否使动脉血更有效地沿静脉系统向远端缺血肢体逆行灌注。材料与方法 :先取40条狗后肢进行测定破坏股静脉瓣所需的压力。另用10只狗做一期动静脉转流并水压逆向破坏深静脉的动物模型研究。结果 :狗后肢深静脉瓣抵抗逆向压力为20 23±3 09kPa。在一期动静脉转流基础上 ,加水压逆向破坏深静脉瓣 ,可加速远端深静脉瓣的破坏 ,确保动脉血向更远端逆行灌注。同时可形成更丰富的侧支循环 ,不会增加肢体肿胀和深静脉血栓形成。结论 :在一期动静脉转流基础上 ,加上水压逆向破坏深静脉瓣 ,有利于动脉血沿深静脉系统向远端逆行灌注 ,而且能形成丰富的侧支循环 ,对尽快挽救远端缺血肢体起着积极作用。
Objective:We perform one stage arteriovenous reversal with hydraulic destruction of deep vein valves on dogs to evaluate its effectiveness of providing a better arterial retrograde perfusion to ischemic extremities through the deep veins.Materials and Methods:40 hind limbs of dogs were selected to measure the retrograde hydraulic pressure that was able to destroy the deep vein valves.And 10 dogs were selected to receive one stage arteriovenous reversal with hydraulic destruction of deep vein valves.Results:A mean pressure of 20 23±3 09kPa was able to destroy the deep vein valves in the hind limbs of dogs.The one stage arteriovenous reversal with hydraulic destruction of deep vein valves could accelerate the destruction of the distal deep vein valves and ensured the arterial perfusion in the distal of the extremities.Meanwhile it was observed that more collateral circulation was established without enhancement of the edema or thrombosis.Conclusions:The one stage arteriovenous reversal with additional hydraulic destruction of deep vein valves ensures the arterial perfusion in the distal of the extremities.Meanwhile it can form more collateral circulation without the enhancement of the edema or thrombosis.That's an active approach for preservation of the ischemic extremities.
出处
《中国临床医学影像杂志》
CAS
2000年第4期281-284,共4页
Journal of China Clinic Medical Imaging
