在分配系统时代,A2/A2B到B的已故捐助者移植
Shivani S Bisen1, Laura B Zeiser1, Samantha N Getsin2
1Grossman School of Medicine, New York University, New York, New York, USA.
概括
血液型A2到B型的移植 (A2→B) 是安全有效的,对符合条件的B型患者来说,已故供体移植 (DDKT) 率显著增加. 建议扩大A2→B列表以改善移植获取.
科学领域:
- 腎病學和移植免疫學.
- 器官移植 器官移植
- 免疫遗传学和血型血清学
背景情况:
- 分配系统 (KAS) 导致A2/A2B型捐献者对B型接受者 (A2→B) 移植的数量显著增加.
- 之前,人们对A2不兼容的活体供体移植和移植结果存在担忧.
- 根据目前的KAS,对于A2→B接受者进行已故捐赠者移植 (DDKT) 的安全性和有效性需要评估.
研究的目的:
- 评估A2→B资格和B型候选名单注册人死亡捐赠者移植 (DDKT) 时间之间的关联.
- 为了评估DDKT后的结果,包括A2→B接受者的死亡率和移植失败,与其他B型接受者相比.
主要方法:
- 从2014年12月到2022年6月的移植受体科学注册表 (SRTR) 中使用的数据.
- 分析了53,409名B型候选名单注册者的队列,确定了"A2资格"的候选人.
- 使用考克斯加权回归分析来比较DDKT率和移植后的结果.
主要成果:
- 只有12.6%的B型候选名单注册人有资格获得A2→B的报价.
- 与A2不符合条件的候选人 (14.1%, 29.9%, 44.1%) 相比,A2符合条件的候选人在1,3年和5年的DDKT率 (32.1%, 61.4%, 72.1%) 显著更高.
- 在A2→B和B-ABOc接受者之间,在7年调整后的死亡率,死亡审查的移植缺陷或所有原因的移植损失方面没有发现显著差异.
结论:
- A2→BDDKT是一种安全有效的移植方式,适用于符合条件的B型候选人,根据目前的KAS.
- 应扩大A2→B报价的B型候选人资格清单,以改善移植的获取和利用.
- 这些发现支持更广泛地采用A2→B已故捐赠者的移植.
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