肝移植术后脾动脉盗血综合征的诊断与治疗

目的 探讨肝移植术后脾动脉盗血综合征(SANS)的诊断和治疗.方法 回顾性分析1012例肝移植受者的临床资料,观察受者SASS的发生情况,并应用统计学方法分析受者性别、原发疾病、术前血小板水平及移植肝与受者的重量比(GRWR)等指标对SANS发生率的影响.SASS的诊断采用B型超声筛查与动脉造影检查相结合的方法.治疗均采用超选择性盗血动脉介入栓塞方法.术后对受者进行了8～36个月的随访,观察治疗效果.结果 有11例肝移植受者术后确诊为SANS,均发生于肝移植术后1个月内,平均(13.63±10.93)d,其发生率为1.09%(11/1012);受者的性别、原发疾病或术前血小板计数对肝移植术后SASS发生率的影响,差异均无统计学意义(P＞0.05),而GRWR较低者,SASS发生率较高(P＜0.01).经介入治疗后,11例受者存活情况良好,移植肝血流恢复正常,肝功能基本恢复正常,无血栓、缺血性胆道并发症发生.1例受者经介入治疗后脾脏周边部出现小片状梗死灶,其余10例受者脾脏无明显异常.结论 肝移植术后发生的SANS无明显特异性表现,应重视对GRWR较低受者的排查;采用B型超声筛查与动脉造影检查可以早期确诊;确诊后对盗血动脉进行超选择性介入栓塞治疗效果理想.

Diagnosis and treatment of splenic artery steal syndrome after orthotopic liver transplantation

Objective To study the clinical data of the splenic artery steal syndrome(SASS) after liver transplant surgery.Methods The clinical data of 1020 cases of liver transplantation were retrospectively analyzed,the SASS occurrence in recipients was observed,and the factors influencing SASS incidence,including the recipients' gender,primary disease,thrombocyte level before transplantation,the liver donor conditions,graft to recipient weight ratio(GRWR),etc,were statistically analyzed.The diagnosis of SASS was achieved by a combination of B-ultrasound and digital subtraction angiography(DSA).All patients were subjected to super-selective embolization of the steal artery.A post-operative follow-up of 8～36 months was conducted after the surgery.Results Eleven(1.09%)of the recipients undergoing liver transplantation were diagnosed as SASS,all occurring within one month post-operation,with an average of(13.63±10.93)days.Recipients'gender,primary disease,or thrombocyte level before transplantation showed no statistically significant difference(P＞0.05),while low GRWR indicated a higher incidence of SASS(P＜0.01).After interventional therapy.all 11 recipients displayed good condition,with normal liver blood flow and liver function,and no signs of thrombus and ischemic biliary complication.Only one of the patients developed small pieces of spleen infarction after interventional therapy.Conclusions SASS has no early specific clinical manifestation after transplantation.The monitor of low GRWR recipients is very important.The adoption of B-ultrasound and DSA provides a meads of early detection.After SASS is confirmed,treatment of super-selective embolization of steal artery is recommended.