Rhubarb as a kind of traditional chinese medicine , could discharge blood stasis , remove lump , clear gastrointestinal tract . it is an effective medicine for treating gastrointestinal failure in critical patients . besides promoting blood circulation by removing blood stasis , it could improve the gastrointestinal blood perfusion , recover gastrointestinal peristalsis and excrete intestinal bacteria and virus 大黄是我国传统中药，具有下瘀血、破症瘕、荡涤胃肠、推陈致新之功效，是治疗危重患者胃肠功能衰竭的良药，不仅可以活血化瘀，改善胃肠道血流灌注，而且还能促进胃肠蠕动功能的恢复，排泄肠道内细菌和毒素。
Objective : to investigate the effect of pumpless portosystemic bypass in clinical piggyback liver transplantation . methods : after catheterized inferior mesenteric vein , the silastic catheter ( filled with heparin saline ) was connected with the catheterized tube of internal jugular vein or subclavian vein in four piggyback liver transplantation patients . the channel was opened after the portal vein was occluded . the portal vein blood poured into the superior vena cava through the pumpless channel . the changes of mesenteric congestion , portal vein pressure , blood pressure and pulse were observed . results : during the occlusion of portal vein , the portal vein pressure was increased greatly , the intestine was congested and swelled obviously and the blood pressure and pulse fluctuated gently . after the pumpless bypass opened , intestinal congestion and swell were abated markedly , the portal pressure , blood pressure and pulse gradually returned to normal range . conclusions : pumpless portosystemic bypass shows a great effect on clinical piggyback liver transplantation . it is a feasible and economical method 目的探讨背驼式原位肝移植术中采用体外门-体静脉无泵转流的临床效果.方法4例行背驼式原位肝移植患者,肠系膜下静脉属支插管经体外硅胶管(充满肝素盐水)与颈内静脉或锁骨下静脉插管相接,在阻断门静脉后开通肠系膜下静脉插管,门静脉血从体外无泵转流管流入上腔静脉,观察转流前后肠道瘀血、门静脉压、血压、脉搏等变化情况.结果门静脉阻断后肠道明显瘀血、肿胀,门静脉压力明显升高,血压、脉搏有不同程度的波动,无泵门静脉转流开放后,肠道瘀血、肿胀明显好转,门静脉压力逐渐恢复正常水平,血压、脉搏恢复正常.结论背驼式原位肝移植术中体外门-体静脉无泵流具有方便、经济、实用等优点,具有良好的临床效果
