肺功能障碍及其与肺动脉高血压患者的目标治疗反应的关系
Xia Xu1, Mengshuang Xie1, Haijun Li1
1Department of Geriatric Medicine & Laboratory of Gerontology and Anti-Aging Research, Qilu Hospital of Shandong University, Jinan, Shandong, China.
肺动脉高血压 (PAH) 患者的肺功能受损,影响运动能力. 减少强迫生命能力 (FVC) 预测对PAH治疗的反应较差.
科学领域:
- 心脏病学 心脏病学
- 肺部病理学 肺部病理学
- 呼吸系统医学 呼吸系统医学
背景情况:
- 肺动脉高血压 (PAH) 导致运动性呼吸障碍和运动能力下降,这并不能完全由右心脏功能障碍解释.
- 之前对PAH患者肺功能及其与疾病严重程度相关性的研究已经产生了不一致的结果.
- 受损的通风和扩散功能被怀疑是PAH中运动性呼吸障碍的贡献者.
研究的目的:
- 在肺动脉高血压 (PAH) 患者中研究肺功能,包括通风和扩散能力.
- 探索肺功能参数与疾病严重程度,运动能力 (6分钟步行距离) 和PAH患者治疗反应之间的相关性.
- 确定特定的肺功能指标,预测PAH治疗结果.
主要方法:
- 一个单一中心前性观察性研究,涉及181名PAH患者.
- 进行了肺功能测试 (呼吸计,扩散能力),右心导管,风险分层.
- 对患者进行了12个月的随访,以评估治疗反应.
主要成果:
- 患有PAH的患者显著减少了强迫生命能力 (FVC),1秒内强迫呼吸量 (FEV1),一氧化碳扩散能力 (DLCO) 和反应量 (X5),其余体积 (RV) 增加.
- 与先天性心脏病相关的PAH (CHD-PAH) 与其他病因相比,显示出更明显的通风障碍.
- FVC和FEV1与6分钟步行距离 (6MWD) 正相关.
- 预测FVC%低于82%的患者对PAH向治疗的反应显著降低 (OR=10.553,p=0.000).
结论:
- 患有PAH的患者表现出受损的通风和扩散能力,在不同病因方面具有明显的模式.
- 像FVC和FEV1这样的关键肺功能参数与运动能力 (6MWD) 有积极的关联.
- 预测的FVC%降低 (<82%) 是对PAH向治疗反应减弱的显著预测指标,突出其预后价值.
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