在第一组肺高血压中,肺动脉压升高
Yogesh N V Reddy1, Robert P Frantz1, William R Miranda1
1Department of Cardiovascular Medicine (Y.N.V.R., R.P.F., W.R.M., R.V., B.A.B.), Mayo Clinic, Rochester, MN.
Circulation
|February 13, 2026
概括
高肺动脉压 (PAWP) 的肺高血压 (PH) 患者表现出明显的特征. 这些发现突出了单独使用PAWP进行诊断的局限性,表明需要综合标准.
科学领域:
- 心脏病学 心脏病学
- 肺部医学 肺部医学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 肺高血压 (PH) 诊断通常使用肺动脉压 (PAWP) >15 mm Hg来表明左心功能障碍.
- 一些患有1组PH的患者,其特征是肺血管疾病,出现PAWP升高.
- 这挑战了传统的诊断方法,需要对高PAWP的1组PH进行进一步的研究.
研究的目的:
- 评估1组PH患者的特征,这些患者表现出升高的PAWP (>15 mm Hg).
- 为了将这些患者与正常PAWP患者和与心力衰竭相关的心力衰竭与保留射出分数 (HFpEF) 相关的前毛细血管/后毛细血管PH组合患者进行比较.
主要方法:
- 对被判定为1组PH患者的回顾性分析,按高或正常的PAWP分类.
- 与被诊断为结合毛囊前/毛囊后PH HFpEF的患者进行比较.
- 利用动态右心脏导管,代谢学和独立队列中的验证.
- 包括炼和休息的右心脏导管协议.
主要成果:
- 1组PH患者中有15%的PAWP高,显示肥胖增加,左心室缩,疲劳减弱和服从性降低,与HFpEF相比.
- 与HFpEF相比,高PAWP的1组PH表现出优异的左心房功能.
- 代谢分析显示,高PAWP和HFpEF的1组PH之间存在显著差异,但在1组PH内高PAWP和正常PAWP之间的差异很小.
- 在验证队列中 (18-22%的1组PH) 始终观察到升高的PAWP.
结论:
- 在1组PH患者中,尽管肺血管功能障碍,但显著比例的患者表现出高的休息PAWP.
- 这些患者在代谢和生物学上与HFpEF不同,左心房功能更好,腹储备更强.
- 仅仅是休息的PAWP不足以区分1组PH和HFpEF,这强调了需要精确的诊断标准的需要.
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