患有哮喘或鼻炎的过敏症患儿呼出气一氧化氮水平较高能预测支气管可逆性
2012/12/31
摘要
背景:过敏性哮喘和鼻炎可能存在相关性。两种疾病均存在气道炎症。呼出气一氧化氮水平(FeNO)可以作为患者(主要是过敏症患者)气道炎症的一个替代标志物。支气管扩张(BD)测试的可逆性是哮喘的一个功能性特征。
目的:本试验旨在哮喘(180)或鼻炎(150)过敏症患儿中评价FeNO是否能预测BD的可逆性。
方法:对所有患者检测肺功能,包括第一秒用力呼气容积(FEV1)、用力肺活量(FVC)、25-75%肺活量时用力呼气流量(FEF25-75),同时检测FeNO和进行BD测试。
结果:肺功能、FeNO和致敏类型在两组患者中存在显著差异。FeNO与BD之后的ΔFEV1存在显著相关。两个预测可逆性的主要预测指标为FeNO>34 ppb(校正后优势比= 1.9)和常年过敏原致敏(校正后优势比= 1.7)。
结论:本研究为FeNO与BD反应性密切相关且可用于预测过敏性鼻炎和哮喘患儿的支气管可逆性提供了证据。因此,简单的FeNO检测即可显示有关支气管可逆性的信息。
(林江涛 审校)
J Asthma. 2012 Nov 16. [Epub ahead of print]
High Exhaled Nitric Oxide Levels May Predict Bronchial Reversibility in Allergic Children with Asthma or Rhinitis.
Ciprandi G, Tosca MA, Capasso M.
Source
IRCCS-Azienda Ospedaliera Universitaria San Martino, Genoa, Italy.
Abstract
BACKGROUND: Allergic asthma and rhinitis may be associated. Airway inflammation is shared by both disorders. The measure of the fractional concentration of exhaled nitric oxide (FeNO) may be considered as a surrogate marker for airway inflammation, mainly in allergic patients. Reversibility to bronchodilation (BD) testing is a functional characteristic of asthma.
OBJECTIVE:The aim of this study was to evaluate whether FeNO may predict reversibility to BD in a pediatric cohort of allergic subjects with asthma (180) or rhinitis (150).
METHODS:Lung function (including forced expiratory volume at the first second (FEV(1)), forced volume capacity (FVC), forced expiratory flow at 25-75% of volume capacity (FEF (25-75))), FeNO measurement, and BD testing were performed in all children.
RESULTS:Lung function, FeNO, and sensitization type were significantly different in the two groups. A strong correlation was found between FeNO and ΔFEV(1) after BD. Two main predictors of reversibility were FeNO values >34 ppb [Odds RatioAdj (ORAdj) = 1.9] and sensitization to perennial allergens (ORAdj = 1.7).
CONCLUSIONS:This study provided evidence that FeNO was strongly related with the response to BD testing and could predict bronchial reversibility in children with allergic rhinitis or asthma. Therefore, a simple FeNO measurement could suggest relevant information about bronchial reversibility.
J Asthma. 2012 Nov 16. [Epub ahead of print]
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鉴别哮喘与肺结节病:对经常无法完全解决问题的鉴别方法
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重新审视哮喘转归