简化非侵入性肺动脉压力-流量关系在运动心声学中的预后价值和可重复性
Youri Bekhuis1, Mauricio Milani2, Maarten Falter3
1Jessa Hospital, Department of Cardiology and Jessa & Science, Hasselt, Belgium; UHasselt, Faculty of Medicine and Life Sciences/LCRC, Diepenbeek, Belgium; Department of Cardiovascular Sciences, KU Leuven, Belgium; Department of Cardiovascular Diseases, UZ Leuven, Belgium; Heart, Exercise & Research Trials (HEART) lab, St Vincent's Institute, Melbourne, VIC, Australia.
Journal of cardiac failure
|November 13, 2025
概括
简化1点的肺动脉平均压力 (mPAP) 与运动期间心脏输出 (CO) 的比率是可重复的,并预测呼吸障碍患者的结果. 这种实用方法有助于评估运动性肺高血压.
科学领域:
- 心脏病学 心脏病学
- 肺高血压研究 肺高血压研究
- 诊断性心脏回声图 (Echocardiography) 是一种心脏回声图.
背景情况:
- 非侵入性肺动脉平均压力 (mPAP) 和心脏输出 (CO) 之间的关系与心血管结果有关.
- 在运动期间评估这种关系对于了解心血管健康至关重要.
- 目前评估运动期间mPAP/CO关系的方法在可重现性和预后价值方面有所不同.
研究的目的:
- 为了比较不同的方法来评估在运动期间的非侵入性mPAP/CO关系.
- 评估这些方法的可复制性和预后价值.
- 为了确定简化的1点mPAP/CO测量是否像传统方法一样可复制和预后有效,在患有不明原因的运动性呼吸障碍的患者中.
主要方法:
- 一项前性多中心队列研究的二次分析,该研究涉及1619名患有不明原因呼吸障碍的患者.
- 患者接受了症状限定的心肺运动测试,并同时进行运动心声学.
- 四种方法评估了mPAP-CO关系:三点线性回归,两点斜率,低水平运动时的1点比率和高峰运动时的1点比率.
主要成果:
- 在炼高峰时使用1点的方法显示了最高的分辨性性能 (AUC 0.715),优于2点 (AUC 0.685) 和3点的方法 (AUC 0.686).
- 在低水平的运动中使用的1点方法显示了类似的准确性 (AUC 0.713).
- 与基于斜率的方法相比,对于1点比率的可重复性更好,在观察者内部和观察者之间达成一致的界限显著更窄.
结论:
- 在运动期间简单的1点mPAP/CO比率提供了与基于斜率的方法可比的预后性能.
- 这些简化的测量方法提供了更大的可重现性,使它们成为一种实用且可靠的方法.
- 这些发现支持采用1点的mPAP/CO比率来评估运动性肺高血压.
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