Abstract: ［Abstract］ Objective〖HTSS〗〓To analyze the application value of right single channel and bilateral double channel of biliary double stents implant combine with biliary extradrainage in treating malignant high biliary obstruction(MHBO).
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓One hundred and fortyone patients of MHBO, including 103 patients with digital subtraction angiography guiding, punctured on the right side of right billiary, established right single channel, implanted biliary double stents with biliary internal drainage, namely the right side of single channel of biliary double stents implant(right side single biliary double stent implantation, group A), and 38 cases are punctured on the right and left billiary, establish bilateral double channel, implanted biliary double stents with biliary internal drainage, namely bilateral double channel of biliary double stents implant(double channel double biliary stent implantation, group B). The different complications and short term curative effects of 2 groups were analyzed and compared.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓Twentyfirst days after operation, the total bilirubin levels of the patients in the 2 groups were significantly lower than those before the operation. However, there was no significant difference between the 2 groups after operation(P＞005).The incidence rate of hemobilia, bile leakage,biliary cardiac reflex, puncture point pain, drainage tube slip in group A is lower than that in group B, and the difference is significant(P＜005). There was no significant difference between the 2 groups in the incidence of biliary infection and drainage tube(P＞005). Two groups of patients had no pleural injury, liver abscess, pancreatitis. There was no significant difference on the total bilirubin between the 2 groups before and after the operation at twentyfirst days(P＞005).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓The technique of single side biliary double stents is a safe and effective method for the treatment of MHBO, and has obvious clinical application value.

Key words: cholestasis, stents, intraoperative complications