机构地区:[1]四川大学华西医院泌尿外科泌尿外科研究所器官移植中心,成都610041 [2]四川大学华西医院泌尿外科泌尿外科研究所实验医学科,成都610041 [3]四川大学华西医院泌尿外科泌尿外科研究所肾脏内科,成都610041
出 处:《中华器官移植杂志》2018年第1期29-34,共6页Chinese Journal of Organ Transplantation
基 金:国家自然科学基金面上项目(81470980);四川大学青年教师科研启动基金(2017SCU11022);四川大学华西医院学科卓越发展1·3·5512程项目
摘 要:目的 探讨ABO血型不相容亲属活体肾移植受者个体化预处理方案的有效性和安全性.方法 纳入2014年9月至2017年6月的36例ABO血型不相容亲属活体肾移植病例,预处理方案包括单用口服免疫抑制剂,或口服免疫抑制剂联合血浆置换、血浆双重滤过及利妥昔单抗,查阅病历和电子数据库来评估受者血型抗体效价、移植肾功能、排斥反应及感染等并发症的发生率,以及受者和移植肾的存活率.结果 36例ABO血型不相容肾移植中AB型供给A型者6例,AB型供给B型者2例,A型供给B型者4例,B型供给A型者3例,A型供给O型者13例,B型供给O型者8例.ABO血型抗体初始滴度中位数为1∶32(1∶2~1∶256)(IgM)和1∶8(0~1∶64)(IgG).个体化预处理方案包括:10例仅口服免疫抑制剂,4例采用免疫抑制剂+血浆置换,1例采用免疫抑制剂+血浆置换+血浆双重滤过,16例采用免疫抑制剂+利妥昔单抗+血浆置换,2例采用免疫抑制剂+利妥昔单抗+血浆双重滤过,3例采用免疫抑制剂+利妥昔单抗+血浆置换+血浆双重滤过.经个体化预处理后,36例受者在移植当天血型抗体IgM、IgG效价水平均≤1∶16.本研究随访时间中位数为12个月(1~33个月),移植肾存活率为94.4%(34/36),受者存活率为100%(36/36),移植后1年血清肌酐中位数为89 μmol/L,eG-FR为81.07 m1·min-1·1.73 m-2.发生尿路感染、上消化道出血各1例,超急性排斥反应(导致移植肾功能丧失)、急性细胞性排斥反应、移植肾功能恢复延迟、骨髓抑制、肺部感染各2例,急性抗体介导排斥反应、切口脂肪液化各3例.结论 初步的经验表明,基于初始ABO血型抗体效价进行个体化预处理是安全、可行的,给ABO血型不相容肾移植受者带来了良好的短期存活率.Objective To investigate the clinical efficacy and safety of individualized preconditioning in ABO-incompatible living donor kidney transplantation.Methods A series of 36 living donor kidney transplants across a wide range of ABO blood group incompatibilities using individualized preconditioning protocols were performed from September 2014 to June 2017.Preconditioning included oral immunosuppressants with or without the administration of rituximab,PE or DFPP.Medical records and electronic databases were reviewed for isoagglutinin titers,patient and graft survivals,graft function,rejections,infections as well as surgical complications.Results Of 30 ABO blood group incompatibilities,there were 6 cases of AB to A,2 cases of AB to B,4 cases of A to B,3 cases of B to A,13 cases of A to O (13),and 8 cases of B to O.Median initial ABO antibody titers were 1∶32 (1∶2-1∶256) (IgM) and 1 ∶ 8 (0-1∶64) (IgG),respectively.Individualized preconditioning included oral immunosuppressants alone (10 cases),oral immunosuppressants + PE (4 cases),oral immunosuppressants + PE + DFPP (1 case),oral immunosuppressants + rituximab + PE (16 cases),oral immunosuppressants + rituximab + DFPP (2 cases),and oral immunosuppressants + rituximab + PE+ DFPP (3 cases).After individualized preconditioning,an acceptable ABO antibody titer (≤1 ∶ 16) was obtained on the day of transplantation.Median follow-up duration was 12 months (1-33).Graft and patient survival rate was 94.4% (34/36) and 100% (36/36) respectively.Median value of serum creatinine at one year posttransplantation was 89 μmol/L,and eGFR was (81.07 mL/min/1.73 m2).In total,there was one episode of urinary tract infection and upper gastrointestinal tract hemorrhage,two cases of hyperacute rejection (leading to graft loss),acutecelluar-mediated rejection,delayed graft function,bone marrow suppression and pneumonia,and 3 cases of acute antibody-mediated rejection and wound fat liquefactio
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