Chen Chao-Long, Concejero Allan M, Cheng Yu-Fan
Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
Clin Transpl. 2011:213-21.
Liver transplantation has been an accepted treatment for end-stage liver disease since the 1980s. The development of living donor liver transplantation (LDLT) was driven by limited deceased donor organ donation and a response to the growing demand for the option of liver replacement. LDLT is now performed with high rates of success due to judicious donor and recipient selection, careful preoperative planning, excellent anesthesia management, and prompt detection and treatment of complications. The first successful liver transplantation in Asia was performed in 1984, in Chang Gung Memorial Hospital in a Taiwanese adolescent with Wilson's disease, complicated by end-stage liver cirrhosis. The longest Asian liver transplant survivor has now been living for 26 years and that patient's transplant was also performed in Chang Gung Memorial Hospital. Through December 31, 2011, a total of 924 (783 living donor, 141 deceased donor) liver transplants have been performed at the Kaohsiung Chang Gung Memorial Hospital, where both graft and patient survivals are excellent. For biliary atresia, hepatitis B virus cirrhosis, and hepatocellular carcinoma recipients, our 5-year LDLT survival rates are 98%, 94%, and 90%, respectively. Our overall (deceased and living donor) actuarial 3-year survival rate is 91%. Innovative techniques in LDLT represent technical refinements in hepatic vein, portal vein, hepatic artery, and biliary reconstruction approaches. Hepatic vein reconstruction is highlighted by venoplasty reconstructions in both graft hepatic vein orifices and recipient hepatic veins, to ensure adequate outflow and decrease ischemia times during implantation. Vascular interposition to reconstruct middle hepatic vein tributaries with either fresh or cryopreserved vessels is used when the middle hepatic vein is not routinely harvested with the graft. We have extended the routine use of microsurgical techniques, initially for hepatic artery reconstruction, to biliary reconstruction where the possibility of duct-to-duct reconstruction is performed with accuracy and precision in pediatric non-biliary atresia and in multiple, small bile ducts. Long-term survival has always been related to the immunosuppression regimen, which influences outcome. Newer drugs do not equate to lesser complications. Rather, improvement in how we can find new uses for old drugs is now the norm. Less immunosuppression, as long as hepatic function is maintained at an acceptable level, decreases the chances of long-term complications related to immunosuppression use.
自20世纪80年代以来,肝移植一直是终末期肝病公认的治疗方法。活体肝移植(LDLT)的发展是由已故供体器官捐赠有限以及对肝脏替代选择需求不断增长所推动的。由于明智地选择供体和受体、精心的术前规划、出色的麻醉管理以及对并发症的及时检测和治疗,LDLT现在的成功率很高。亚洲首例成功的肝移植于1984年在长庚纪念医院为一名患有威尔逊氏病并伴有终末期肝硬化的台湾青少年进行。亚洲肝移植最长存活者现已存活26年,该患者的移植手术也是在长庚纪念医院进行的。截至2011年12月31日,高雄长庚纪念医院共进行了924例肝移植手术(783例活体供体,141例已故供体),移植物和患者的存活率都很高。对于胆道闭锁、乙型肝炎病毒肝硬化和肝细胞癌受体,我们的5年LDLT存活率分别为98%、94%和90%。我们总体(已故和活体供体)的3年精算存活率为91%。LDLT中的创新技术代表了肝静脉、门静脉、肝动脉和胆道重建方法的技术改进。肝静脉重建的突出之处在于对移植物肝静脉开口和受体肝静脉进行静脉成形术重建,以确保足够的流出并减少植入期间的缺血时间。当中肝静脉不随移植物常规获取时,使用新鲜或冷冻保存的血管进行血管间置以重建中肝静脉分支。我们将显微外科技术的常规应用从最初的肝动脉重建扩展到胆道重建,在小儿非胆道闭锁和多个小胆管的情况下,可以精确地进行端端胆管重建。长期存活一直与免疫抑制方案有关,免疫抑制方案会影响治疗结果。新药并不等同于较少的并发症。相反,现在的常态是改进我们如何能为旧药找到新用途。只要肝功能维持在可接受的水平,减少免疫抑制就能降低与使用免疫抑制相关的长期并发症的几率。