JACC:肝移植后心脏移植可减轻致敏患者的心脏移植排斥反应!

2021-03-17 Nebula MedSci原创

原位心脏移植仍是晚期心衰的治疗金标准,但显著的同种异体致敏限制了需心脏移植患者获得器官的机会,导致等待时间更长和等待死亡率高。而且,目前的脱敏策略在使移植成功方面的作用有限。

原位心脏移植仍是晚期心衰的治疗金标准,但显著的同种异体致敏限制了需心脏移植患者获得器官的机会,导致等待时间更长和等待死亡率高。而且,目前的脱敏策略在使移植成功方面的作用有限。

本文旨在报道使用一种新的肝后心脏移植(HALT)方案进行心肝联合移植的累积经验。

纳入需要在单一机构进行心脏和肝脏联合移植的高度致敏患者,量身制定肝移植后心脏移植方案。患者被列为双器官患者,由于同种抗体水平高,排斥风险增加或等待时间明显延长。

移植后供者特异性抗体(DSA)

共7例(43±7岁,86%女性)高致敏患者(中位数计算群体反应性抗体=77%)接受了HALT治疗。所有患者均有显著的、不可接受的供者特异性抗体(DSA)(平均荧光抗体>4000)。术前前瞻性流式细胞仪T细胞交叉配型全部为阳性,B细胞交叉配型有5例阳性。

移植后的LVEF和LV间隔厚度

HALT后,回顾性交叉配型(B细胞和T细胞)全部转为阴性。DSA明显降低;在最后一次随访中,所有预先形成或新形成的DSA水平均显著降至2000以下

中位随访时间为48个月(四分位数范围:25~68个月),无患者发生1R级以上的排斥反应。有1例死于转移性癌症,无明显移植器官功能障碍。

总之,肝后心脏移植方案可通过消除DSA从而使移植获得成功,并能有效地预防心肝联合移植的高度致敏患者的不良免疫学结局。

原始出处:

Daly Richard C,Rosenbaum Andrew N,Dearani Joseph A et al. Heart-After-Liver Transplantation Attenuates Rejection of Cardiac Allografts in Sensitized Patients.J Am Coll Cardiol, 2021, 77: 1331-1340.

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    2021-11-02 hbwxf
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