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孤立的小气道阻塞预测未来的慢性气流阻塞:一项跨国纵向研究
Ben Knox-Brown1, James Potts2, Valentina Quintero Santofimio2
1National Heart and Lung Institute, Imperial College London, London, UK b.knox-brown20@imperial.ac.uk.
使用FEF25-75测量检测到的孤立的小气道阻塞可以预测未来的慢性气流阻塞. 这一发现表明,早期发现小呼吸道疾病可能有助于预防慢性阻塞性肺病的进展.
科学领域:
- 肺部病理学 肺部病理学
- 呼吸系统医学 呼吸系统医学
- 流行病学 流行病学
背景情况:
- 慢性气流阻塞是慢性阻塞性肺病 (COPD) 的标志.
- 早期的,孤立的小气道阻塞和慢性气流阻塞的后期发展之间的联系需要进一步调查.
研究的目的:
- 确定基线时孤立的小气道阻塞是否与慢性气流阻塞的发展有关.
- 评估不同的小气道阻塞测量的预测能力.
主要方法:
- 分析了来自阻塞性肺病负担 (BOLD) 研究 (n=3957) 和英国生物库 (n=26512) 的纵向数据.
- 孤立的小气道阻塞是由前支气管扩展剂FEF25-75
- 慢性气流阻塞被定义为支气管扩展后的FEV1/FVC
- 慢性气流阻塞被定义为支气管扩展后的FEV1/FVC
主要成果:
- 具有基线孤立小气道阻塞的参与者更有可能发展慢性气流阻塞 (或FEF25-75: 2.95,或FEV3/FVC: 1.94).
- 与FEV3/FVC (AUC 0.764与0.692) 相比,FEF25-75对未来的慢性气流阻塞进行了更好的歧视.
- 在英国生物银行复制队列中,研究结果一致.
结论:
- 测量小气道阻塞,特别是FEF25-75,可以作为未来阻塞性肺病的早期指标.
- 早期发现小呼吸道功能障碍可能有助于及时进行干预,以防止COPD的进展.
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