Davern T J, Lake J R
Department of Medicine, University of California, San Francisco 94143-0538, USA.
Semin Gastrointest Dis. 1998 Jul;9(3):86-109.
Most liver diseases for which liver transplantation is performed recur after liver transplantation. The clinical impact of recurrence varies. For autoimmune liver diseases, such as primary biliary cirrhosis, primary sclerosing cholangitis, and autoimmune hepatitis, clinically significant recurrence appears to be relatively rare. Whether these diseases recur in any meaningful way after liver transplantation is still controversial. For the chronic viral diseases, hepatitis B and C, the issue is not whether they recur--they clearly do--but whether the recurrence affects prognosis and how best to manage recurrent disease. For hepatitis B virus (HBV), reinfection can lead to accelerated liver injury, graft loss, and dramatically worse patient and graft survival rates, whereas the prognosis of recurrent hepatitis C virus (HCV), at least in the short-term, appears to be more benign. Major advances have been made in preventing liver allograft reinfection with HBV. Before these advances, chronic hepatitis B was considered a relative contraindication to liver transplantation because the allografts almost always became reinfected. With the current strategies for preventing HBV reinfection, however, the graft and patient survival rates after transplantation for chronic hepatitis B approach those for nonviral diseases. The development of resistance to antiviral therapy is likely to represent the major problem in the future and mandate the use of combination therapy. There is currently no effective therapy available for recurrent hepatitis C. Until such therapy is developed, recurrent hepatitis C remains the most challenging problem facing liver transplant physicians and surgeons.
大多数接受肝移植的肝脏疾病在肝移植后会复发。复发的临床影响各不相同。对于自身免疫性肝病,如原发性胆汁性肝硬化、原发性硬化性胆管炎和自身免疫性肝炎,临床上显著的复发似乎相对少见。这些疾病在肝移植后是否会以任何有意义的方式复发仍存在争议。对于慢性病毒性疾病,乙型肝炎和丙型肝炎,问题不在于它们是否会复发——它们显然会复发——而是复发是否会影响预后以及如何最好地处理复发性疾病。对于乙型肝炎病毒(HBV),再次感染可导致肝损伤加速、移植物丢失以及患者和移植物存活率显著降低,而丙型肝炎病毒(HCV)复发的预后,至少在短期内,似乎更为良性。在预防肝移植受者再次感染HBV方面已取得重大进展。在这些进展之前,慢性乙型肝炎被认为是肝移植的相对禁忌证,因为移植的肝脏几乎总会再次感染。然而,采用目前预防HBV再次感染的策略后,慢性乙型肝炎患者移植后的移植物和患者存活率已接近非病毒性疾病患者。抗病毒治疗耐药性的出现可能是未来的主要问题,这就需要联合治疗。目前尚无有效的丙型肝炎复发治疗方法。在开发出此类治疗方法之前,丙型肝炎复发仍然是肝移植内科医生和外科医生面临的最具挑战性的问题。