伴支气管高反应性的成人哮喘患者中呼出气一氧化碳:一项前瞻性研究
2009/11/16
方法:共纳入209名18-65岁,诊断为哮喘和支气管活动性的成人患者。6周内对eCO与支气管活动性、第1秒用力呼气量(FEV1)、用力肺活量(FVC)、呼气峰值流速(PEFR)、哮喘症状评分和支气管扩张剂使用之间的关系进行横向分析,同时分析个体内eCO变化与以上变量改变之间的关系。
结果:eCO在糖皮质激素吸入治疗患者和无糖皮质激素吸入治疗患者间无显著差别(p = 0.33)。此外,eCO和支气管反应性、FEV1、FVC、PEFR、症状评分和支气管扩张剂的使用之间不存在横向及个体内相关性。
结论:对于存在支气管高反应性的成人患者,eCO作为哮喘活动性生物标记物的作用有限。
(林江涛 审校)
J Asthma. 2009 Sep;46(7):665-669
Exhaled carbon monoxide in asthmatic adults with bronchial reactivity: a prospective study.
Pogson ZE, Antoniak MD, Mckeever TM, Lewis SA, Britton JR, Fogarty AW.
HYPOTHESIS: We hypothesized that eCO may permit non-invasive assessment of disease activity in adults with asthma and bronchial reactivity.
METHODS: A total of 209 participants 18 to 65 years of age with a diagnosis of asthma and bronchial reactivity provided data for analysis. The association between eCO and bronchial reactivity, forced expiratory volume in one second (FEV(1)), forced vital capacity (FVC), peak expiratory flow rate measurements (PEFR), asthma symptoms score, and bronchodilator use cross-sectionally and within-subject change in eCO were analyzed in relation to change in these variables over 6 weeks.
RESULTS: There was no difference in eCO in those who were taking inhaled corticosteroids and those who were not (p = 0.33). There was also no cross-sectional or within-in subject association between eCO and bronchial reactivity, FEV(1), FVC, PEFR, symptoms score, or bronchodilator use.
CONCLUSIONS: In a population of adults with bronchial reactivity, eCO has no or very limited potential as a biomarker of asthma activity.
J Asthma. 2009 Sep;46(7):665-9
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