定制肝移植决策:捐赠者-接受者年龄匹配如何影响结果
Abiha Abdullah1, Berkay Demirors1, Francis Spitz1
1Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.
Clinical transplantation
|February 15, 2026
概括
捐赠者的年龄显著影响肝移植 (LT) 的成功,为不同接受者年龄组确定了特定的年龄门. 较老的捐赠者 (≥50岁) 具有更高的风险,特别是儿童肝移植接受者.
科学领域:
- 移植研究 移植研究
- 器官移植的结果.
- 老年医学在移植中
背景情况:
- 捐赠者的年龄是影响肝移植 (LT) 成功的关键因素.
- 捐赠者年龄的确切影响在不同的接受者年龄人口统计学上有很大差异.
- 与移植后风险增加相关的特定供体年龄门尚未确定.
研究的目的:
- 确定与肝移植后不良结果相关的受体年龄特定的供体年龄门.
- 确定在不同的接受者年龄层中增加死亡率和移植损失风险的关键捐赠者年龄截止值.
- 通过量化与受体年龄相对的捐赠者年龄风险,为器官分配策略提供信息.
主要方法:
- 来自移植受体科学注册 (2011-2021) 的首次,单个器官肝移植 (LT) 接受者的分析.
- 根据年龄组对捐赠者和接受者进行分层分层,以评估结果.
- 采用多变量考克斯回归模型来确定与风险增加相关的供体年龄门,并根据关键共变量进行调整.
主要成果:
- 在儿童肝移植接受者中,捐赠者年龄≥50岁显著增加死亡风险 (aHR,6.48).
- 对于年龄在18.1-30岁的成年接受者来说,55岁以上的捐赠者与过度死亡率和移植损失有关 (aHRs>2.5).
- 在40岁至60岁的接受者中,随着捐赠者年龄的增加,风险增加,而在65岁以上的接受者中,捐赠者年龄没有显著的结果关联.
结论:
- 这项研究确定了接受者年龄特定的供体年龄门,用于肝移植后的风险,这是一个新的国家发现.
- 确定的门支持建立基于年龄的器官分配政策.
- 鉴于肝移植中捐赠者和接受者年龄的上升,建议重新评估器官丢弃实践.
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