肾移植受者伴肝炎病毒感染的术前筛选:肝组织学检查的意义

Liver biopsies on renal transplant recipients with hepatitis virus infection: significance and complication

目的 评价肝组织学检查对慢性肝炎病毒感染的肾移植受者的临床意义。方法 对 1999年 1月～ 2 0 0 2年 8月所有慢性乙型肝炎病毒 (HBV)和丙型肝炎病毒 (HCV)感染的肾移植候选病人(n=74 )均行肝穿刺活检 (实验组 ) ,以半定量积分法评价肝组织炎症(G)和纤维化 (S)程度。肝脏组织病理诊断为G0 2 S0 2 的病人 (n =31)接受肾移植。以 1995年 1月～ 1998年 12月慢性HBV和HCV感染的肾移植受者(n=6 0 )作为历史对照 ,该期间以血清酶学检查正常作为可接受肾移植的条件 ,比较两组病人肾移植术后围手术期肝功能异常的发生率。结果 实验组接受肾移植的病人术后肝功能异常的发生率 (3 2 % )明显低于历史对照组 (2 3 8% ) (P <0 0 1) ,接受肝活检的病人穿刺后出血率为 12 2 %。结论 根据肝组织病理学检查结果对伴肝炎病毒感染的肾移植受者进行术前筛选 。

Objective The study was performed to determined the significance and safety of liver biopsies in these patients as a pre-transplantation screening test. Methods From January 1999 to August 2002, seventy-four renal transplant recipients with hepatitis B or C virus infection were received the percutaneous liver biopsy. The severity of liver inflammation(G) and fibrosis(S) were evaluated by semi-quantity technique. The patients whose liver histological diagnosis was G 0-2 S 0-2 received renal transplantation(n=31). Patients with hepatitis B or C virus infection who received renal transplantation in the period of January 1995 to December 1998 were selected as historic controls. Normal level of serum transaminase was considered as a indication for the received renal transplantation during this period. The incidence of liver dysfunction after transplantation was compared between the two groups. Results It showed among thirty-one patients received renal transplantation from 1999-2002, only 1 patient (3.2%) developed liver failure after transplantation. However, among 60 patients of historic control, 17 (23.8%) suffered from liver dysfunction (P<0.01). Intra-abdominal hemorrhage was the main complication in uremic patients who received liver biopsies with the incidence of 12.2%. Conclusion The results suggest histological severity of liver damage is a strong predictor of liver failure after transplantation in patients with hepatitis virus infection.