脂肪供肝对肝移植术后早期肝功能和预后的影响

目的 探讨脂肪供肝对肝移植术后早期肝功能和半年预后的影响.方法 中山大学附属第一医院近3年使用UW液体灌注的首次肝移植患者76例,其中脂肪供肝35例,按肝脂肪变性程度分3组(＜20%组,20%～40%组,≥40%组),无脂肪变性供肝41例为对照组,分别比较各组术后当天、1、2、3、7 d的丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)水平、总胆红素(TB)、凝血酶原时间(PT),ICU时间、迟发性无功能(DNF)发生率和3、6个月患者生存率等各项指标.并对35例脂肪变性供肝程度和术后肝功能关系进行相关性分析. 结果肝脂肪变性≥140%组的术后ALT、AST、TB、PT均高于脂肪变性20%～40%组,脂肪变性20%～40%组术后的AST,ALT,TB均高与脂肪变性＜20%,供肝脂肪变性＜20%组各项指标与对照组差异不显著,各组术后DNF发生率和3、6个月存活率均无统计学差异.脂肪变性程度和术后肝功能的相关性分析显示,随脂肪变性程度增大,肝功能损害逐步加重,相关性有显著意义.结论 供肝脂肪变性＜20%对肝移植术后肝功能影响较小,作为供肝较为安全;供肝脂肪变性≥20%对肝移植术后肝功能损害明显加重,增加术后肝功能衰竭的风险,应慎重使用;对脂肪变性≥40%供肝应更慎重或避免使用.

Impact of steatotic liver grafts on early liver function and prognosis of Hver transplantation recipients

Objective To evaluate the impact of steatotic hepatic grafts on postoperative early liver function and prognosis.Methods Clinical data of 35 cases receiving steatotic liver grafts in our hospital were retrospectively analyzed.The donor liver grafts were divided into 3 groups based on the degree of fatty infiltration(＜20%group,20%～40%group,≥40%group).Results were compared with that from control normal grafts(41 cases).Liver function parameters including AST,ALT,TB,PT on the day of surgery and 1,2,3,7 days later were monitored among the 4 groups,as well as the incidence of delayed nonfunction (DNF),and 3 and 6 months patient survival rate.Analysis of the correlation between degree of donor steatosis and liver function after operation was carried out.Resuits There was significant difference in postoperative ALT、AST、TB、PT level between≥40%group and 20%～40%group,and between 20%～40%and group＜20%group.There was no significant difference among the groups in DNF occurrence rate and 3 month.6 month patient survival rate.Correlation analysis suggested that the degree of donor steatosis was positively correlated with the damage of liver function.Conclusions Grafts with≤20% steatosis was safe,whereas≥20% especially ≥40% steatosis carries a high risk of posttransplant liver dysfunction even delayed nonfunction.