单次和重复≥10%FEV1的预后值在慢性肺异位移植功能障碍下降
Kimberly Lu1, Miranda C Bradford2, Xuanshuang Wang1
1Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Washington, Seattle, Washington.
概括
肺功能急性下降,特别是第一秒强迫呼气体积 (FEV1),在移植后一年内对慢性肺异位功能障碍 (CLAD) 的预测价值有限. 这些发现可能有助于改进CLAD诊断标准.
科学领域:
- 肺部病理学 肺部病理学
- 移植医学 移植医学
- 临床研究 临床研究
背景情况:
- 慢性肺异位移植功能障碍 (CLAD) 是长期肺移植失败的主要原因.
- 对急性肺功能下降对CLAD发展的预测值尚未得到充分确立.
研究的目的:
- 确定急性强迫呼气体积在第一秒 (FEV1) 下降的正负预测值 (PPV,NPV) 以预测CLAD或一年内死亡.
- 评估一次性与重复性FEV1下降的预测能力.
主要方法:
- 对340名肺移植接受者的回顾性分析,其中至少有来自两个移植中心的3年随访数据.
- 评估一次性和重复的FEV1下降 (≥10%和≥20%) 至少3周.
- 对FEV1下降的PPV和NPV计算预测CLAD或1年死亡.
主要成果:
- 一次≥10%的FEV1下降显示PPV为35%,NPV为63%.
- 长达3周的FEV1重复下降≥10%,PPV为44%,NPV为65%.如果FEV1持续下降≥10%,PPV为44%,NPV为65%.
- 一次≥20%的FEV1下降在50%的病例中确定了初始CLAD,而重复≥20%的FEV1下降在71%的病例中确定了初始CLAD.
结论:
- 急性FEV1下降对CLAD发展和死亡具有中等预测价值.
- 对于FEV1下降的值可能会作为注册标准或急性肺异位移植功能障碍临床试验的替代结果.
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