使用哮喘吸入治疗装置之前,呼出气体体积是否重要?(诊断与监测)

2009/06/26

    正确使用吸入治疗装置是优化哮喘管理的一个重要组成部分。关于正确使用定量吸入治疗器(MDI)的具体步骤长期存在争议,其中包括使用前是否需注意肺容量。
    通过文献检索,研究使用MDI时肺容量的重要性。结果显示,9项研究中有6项支持使用MDI前轻轻呼气至功能残气量(FRC)或残气量(RV)。关于使用MDI和单向储雾器或其它辅助吸入治疗器以及干粉吸入器前需要呼气至FRC或RV,我们也对文献做了总结。
   诸多研究显示,许多患者和医疗保健专家不知道或忘记在使用吸入治疗器前呼气至RV或FRV。专家和患者均需接受培训,以保证正确使用MDI或其它辅助吸入治疗器,其中要包括在吸入药物之前轻呼气至RV或FRV。
(陈欣 审校)
Self TH,et al. J Asthma. 2009 Apr;46(3):212-216
 
 
 
Does it really matter what volume to exhale before using asthma inhalation devices?
 
Correct use of inhalation devices is one essential component of optimal management of asthma. Several longstanding controversies regarding specific steps to correct use of metered dose inhalers (MDI) include the lung volume when the MDI should be actuated. As a primary objective, literature was reviewed examining this one step in MDI use. Results from six of nine investigations support the need to gently exhale either to functional residual capacity (FRC) or residual volume (RV) before MDI actuation. Literature is also summarized regarding the need to exhale to FRC or RV before inhaling from MDI plus valved holding chambers or other extension devices and from dry powder inhalers. Numerous studies indicate that many patients as well as health care professionals either do not know or forget to exhale to RV or FRC before inhaling asthma medications. Both patients and health care professionals need education to help ensure correct use of MDI and other asthma inhalation devices, including instruction to first exhale gently to RV or FRC before inhaling the medication.


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