血管成形术 , 肝移植 , 门静脉 , 狭窄

Objective To evaluate the therapeutic results of percutaneous transhepatic stent angioplasty for portal vein stenosis following liver transplant. Methods From 2005 to 2012，37 patients developed portal vein stenosis following liver transplant. Percutaneous transhepatic angioplasty of the portal vein was performed in allpatients. The clinical data，imaging follow-up data，complications of interventional treatment and prognosis weresummarized. Results In all patients，the percutaneous transhepatic angioplasty were successful. It was placed with7 pieces of self-expanding metallic stents，29 pieces of balloon-expandable coronary stent，

and 1 piece of membranous stent. 1 case of pediatric liver transplant patients was only used balloon angioplasty. 1 case with abdominal hemorrhageof early postoperative（2.70%），diagnosis of hepatic artery hemorrhage by hepatic artery angiography and cured byinterventional embolization. The follow up period ranged from 3 months to 80 months. Portal venous patency was

maintained in 33 patients（1 patient died due to multi organ failure because of concomitant hepatic artery occlusion and ischemic bile duct injury after 3 months，1 patient accept the second liver transplantation because of the biliary tract complications，1 case was placed membranous tent again because of portal vein stent carcinoma bolt，and 1 case with stent restenosis）. Conclusion Percutaneous transhepatic stent angioplasty is an effective and safe method for treatment of portal vein stenosis following liver transplant.

Angioplasty, Liver transplantation, Portal vein, Stenosis