Objective To evaluate the therapeutic effects of endoscopic treatment on biliary tract complications after liver transplantation. Methods The clinical data of 55 patients with biliary tract complications after liver transplantation undergoing endoscopic treatment from January 2006 to June 2009 were analyzed retrospectively. Results Ninety-eight times of endoscopic treatment were performed in 55 patients. There were 11 cases of biliary fistula, 4 cases of bile duct stricture with biliary fistula, 21 cases of bile duct stricture, 12 cases of bile duct stricture with biliary sludge or stones, 3 cases of biliary sludge or stones, 2 cases of angular distortion of the bile duct and papilla duodeni stenosis in 2 cases. Different procedures including biliary tract dilation, endoscopic nasobiliary drainage, endoscopic sphincterotomy, stone extraction technique and biliary stent placement were performed in different biliary tract complications. The endoscopic treatments were successful in 46 cases (83.6%). The procedure related complications were found in 13 times (13.3%). Conclusion Endoscopy may serve as the primary modality for treating biliary tract complications after liver transplantation with safety and effectiveness.
胆道并发症发生率的高低往往代表了一个肝移植中心的整体技术水平。欧美成熟的肝移植中心胆道并发症发生率为7%~10%，1年生存率达到90%。来自中国肝移植登记注册网（CTLR）的资料： 香港玛丽医院2006年统计了香港公民在大陆进行肝移植的148例患者，在长期随访中发现，有48%的受体发生了胆道并发症，1年生存率只有59%； 说明目前肝移植胆道并发症的防治仍然是亟待解决的难题。究其原因，还是对胆管微循环保护的研究不够深入和并发症发生的防治体系不够完善，笔者就此谈几点体会。1胆管微循环保护的理论人体肝脏胆管及血管铸型模型的研究显示，胆管为动脉单一供血，肝固有动脉和胃十二指肠动脉终末支分出3点、9点动脉滋养肝外胆管，并构成肝门部胆管周围血管丛(peribiliary vascular plexus,PVP)，胆管的动脉系统与门静脉之间无明显的交通血管，门静脉在胆管的血液供应中作用有限 (图1)。在动脉损伤时胆管很难从别的途径获得充分的血液供应，从而造成胆管的缺血性损伤。碳素墨汁灌注透明法显示，肝门部每个肝叶胆管及其分叉部均有肝固有动脉的较大分支支配，肝动脉的分支与胆管壁微血管之间呈垂直的连接方式。胆管厚切片透明后可清楚地显示出PVP的平面结构: 外层微血管直径较粗，内层微血管象链条一样排列，中层微血管连接在内、外层之间[３](图2)。动脉血流从外层较粗大血管流入位于胆管黏膜下的内层微血管，它是胆管动脉的终末分支,由内层微血管滋养的胆管上皮细胞层是胆管最易受损的部位(Achilles heel)。所以，肝移植中胆管动脉灌洗非常重要，应尽可能选用能够进入胆管黏膜内层血管网的低黏滞度灌注液。笔者研究证实了HCA液结合UW液灌注快速获取无心跳供体（NHBD）的肝脏，其保存效果优于单用UW液、Celsior液或HTK液，采用价廉低黏滞度HCA液联合UW液灌注，既能防止胆管PVP微血栓形成，又能充分发挥UW液对肝细胞和胆管细胞的保护作用.............................
目的探讨肝移植术后胆道并发症的病因及内镜在肝移植并发症中的治疗。 方法笔者所在单位1995年9月至2010年3月期间共施行尸体肝移植516例，将其分为2个阶段，即1995～2001年的技术摸索阶段和2001～2010年的技术成熟阶段。第1阶段125例，有17例（13.60%）发生胆道并发症；第2阶段391例，有15例（3.84%）发生胆道并发症。对这32例患者行内镜诊治的相关临床资料进行回顾性分析。 结果32例中单纯胆瘘5例，单纯胆管结石2例，单纯胆管狭窄11例，胆管狭窄伴结石9例，胆管狭窄合并胆瘘2例，胆管扭曲2例，十二指肠乳头狭窄1例。针对不同的胆道并发症，采取了胆管扩张、乳头切开取石、胆道支架置放、鼻胆管引流等不同的治疗方式，32例患者共行内镜治疗56例次，治疗成功27例（84.38%）；发生内镜相关并发症4例（12.50%）。 结论内镜治疗肝移植术后胆道并发症的疗效是值得肯定的。
ObjectiveTo investigate the clinical characteristics and treatment to improve the prognosis of liver abscess after liver transplantation. MethodsEight cases of liver abscess after liver transplantation who were treated in our hospital from Apr. 1999 to Sep. 2013 were retrospectively analyzed, including clinical presentation, predisposing factors, treatment, and prognosis of outcomes. ResultsIn our group, the incidence of liver abscess after liver transplantation was 2.07% (8/387), and main predisposing factors included biliary complications, hepatic artery complications, and so on. The treatments included sensitive antibiotics therapy, reducing or deactivating immunosuppressant, aspiration and drainage of abscess by the ultrasound guiding, balloon valvuloplasty for biliary stenosis, percutaneous transhepatic cholangial drainage (PTCD), indwelling biliary stents, endoscopic nasobiliary drainage (ENBD), and hepatic resection. All of the 8 cases were followed-up for 3-59 months (median of 23 months), during the follow-up period, 4 cases were cured, 1 case improved, and 3 cases died. ConclusionsHepatic arterial and biliary complications are the most common predisposing factors for liver abscess after liver transplantation. Active prevention and treatment of biliary and hepatic arterial complications after liver transplantation are the key to reduce the occurrence of liver abscess and improve the prognosis of it.
ObjectiveTo explore the safety and effectiveness of endoscopic treatment for biliary tract complications after liver transplantation.MethodsPatients who underwent endoscopic treatment for biliary tract complications after liver transplantation from January 2009 to December 2018 in West China Hospital were enrolled. Characteristics of patients, types of biliary tract complications, effectiveness of endoscopic treatment and endoscopic related complications were collected and analyzed.ResultsAmong the 57 patients with biliary tract complications, 37 patients had biliary stricture alone, 4 patients had bile leak alone, 15 patients had biliary stricture plus biliary stones or sludge, and 1 patient had biliary stricture combined with biliary leakage. A total of 112 treatments of endoscopic retrograde cholangiopancreatography (ERCP) were performed, among which 100 treatments were accomplished successfully (89.3%), including the improvement of bile duct stenosis, the cure of bile leak and the successful removal of common bile duct stones. The number of total ERCP related complications was 15 (13.4%), among which post ERCP pancreatitis was the most common (9.8%).ConclusionEndoscopic therapy can be considered as an initial treatment for biliary tract complications after liver transplantation as its safety and effectiveness.