肺功能正常的下限,以确定基线肺异位移植功能障碍
Michael Gerckens1,2, Susanne Simon3, Carlo Mümmler1,2
1Department of Medicine V, University Hospital, LMU Munich, Comprehensive Pneumology Center (CPC-M), German Center for Lung Research (DZL), Munich, Germany.
Transplantation direct
|February 26, 2026
概括
通过使用正常的下限 (LLN) 来定义基线肺全移植功能障碍 (BLAD),可以改善肺移植接受者的风险识别. 这种针对BLAD的年龄和性别调整的方法对于预测移植损失至关重要.
科学领域:
- 肺部病理学 肺部病理学
- 移植手术 移植手术
- 医学统计 医学统计
背景情况:
- 肺移植后的非正常肺功能 (LTx) 是一个显著的死亡风险因素.
- 传统的BLAD定义 (<80%预测) 过高估计了因忽视年龄/性别变化而导致的功能障碍.
- 正常的下限 (LLN) 是一个螺旋测量标准,但尚未应用于BLAD.
研究的目的:
- 评估由LLN定义的BLAD与肺全移植损失的关联.
- 为了比较基于LLN的BLAD定义与传统的值.
主要方法:
- 对726名LTx受体 (2014-2018) 的回顾性多中心研究.
- 追踪到2024年8月的肺功能 (FEV1,FVC) 和移植存活率.
- 时间依赖的考克斯模型分析了BLAD (FEV1/FVC
主要成果:
- 65%的接受者实现了正常的基线肺功能 (FEV1/FVC ≥ LLN).
- 在调整后,BLAD (FEV1/FVC < LLN) 与移植损失 (HR 1.822,P<0.001) 有显著的关联.
- 179名患者出现了慢性肺异位移植功能障碍;236人经历了移植损失.
结论:
- 基于LLN的BLAD定义强烈预测了移植损失风险的增加.
- 这种年龄和性别调整的定义避免了固定80%门的偏见.
- 通过LLN标准,可以更好地识别面临移植失败风险的LTx受体.
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