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相关实验视频

喘恶化和喘控制不良之间的区别

H Reddel1, S Ware, G Marks

  • 1Institute of Respiratory Medicine at Royal Prince Alfred Hospital and the University of Sydney, Camperdown, NSW, Australia. hkr@mail.med.usyd.edu.au

Lancet (London, England)
|February 9, 1999
PubMed
概括
此摘要是机器生成的。

喘恶化表现出不同于控制不良的喘的峰值呼气流 (PEF) 模式,即使日间变异性相似. 这表明在恶化期间具有明显的β2-上腺受体功能,影响肺功能评估.

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科学领域:

  • 肺部医学 肺部医学
  • 呼吸系统生理学 呼吸系统生理学

背景情况:

  • 增加的峰值呼气流 (PEF) 变化表明控制不良的喘.
  • 建议在评估喘严重程度和恶化时对日间PEF变异性进行评估.

研究的目的:

  • 为了确定喘恶化是否表现出与控制不良的喘相同的PEF特征.

主要方法:

  • 检查了43名控制不良喘患者的电子PEF记录.
  • 在恶化,控制不良和稳定的喘阶段比较日间PEF变异性.

主要成果:

  • 在不良控制下,每日PEF变异率为21.3%,在治疗后改善至5.3%.
  • 在恶化期间 (95%与呼吸道感染相关),变化率为7.7%,不显著高于稳定的喘 (5.4%).
  • 在恶化期间,PEF数据表明β2-激动剂反应受损,但在控制不良期间并非如此.

结论:

  • 喘患者在感染期间容易出现恶化,即使喘得到控制.
  • 在恶化期间,日间PEF变异性可能无法检测到肺功能显著变化.
  • 在恶化和控制不良之间,PEF变化有所不同,这表明β2-上腺受体功能发生了变化.