The Association of Periconception Asthma Medication Discontinuation with Adverse Obstetric Outcomes

医学 哮喘 喘息 呼出气一氧化氮 中止 不利影响 肺活量 置信区间 怀孕 吸入器 内科学 比率 儿科 肺活量测定 肺功能 生物 扩散能力 遗传学
作者
Matthew C.H. Rohn,Danielle Stevens,William A. Grobman,Rajesh Kumar,Zhe Chen,Jessy Deshane,Joseph R. Biggio,Akila Subramaniam,Katherine L. Grantz,Seth Sherman,Pauline Mendola
出处
期刊:American Journal of Perinatology [Georg Thieme Verlag KG]
被引量:1
标识
DOI:10.1055/a-2097-1468
摘要

Objective This study aimed to investigate asthma medication reduction in the periconceptional period as it relates to asthma status and adverse outcomes in pregnancy. Study Design In a prospective cohort study, self-reported current and past asthma medications were collected and analyzes compared measures of asthma status in women who discontinued asthma medication in the 6 months prior to enrollment (“step-down”) versus those who did not (“no change”). Evaluation of asthma was done at three study visits (one per trimester) and by daily diaries, including measures of lung function (percent predicted forced expiratory volume in 1 and 6 s [%FEV1, %FEV6], peak expiratory flow [%PEF], forced vital capacity [%FVC], FEV1 to FVC ratio [FEV1/FVC]), lung inflammation (fractional exhaled nitric oxide [FeNO], ppb), rate of asthma symptoms (activity limitation, night symptoms, rescue inhaler use, wheeze, shortness of breath, cough, chest tightness, chest pain), and rate of asthma exacerbations. Adverse pregnancy outcomes were also evaluated. Adjusted regression analyses examined whether adverse outcomes differed by periconceptional asthma medication changes. Results Of 279 participants included in analyses, 135 (48.4%) did not change asthma medication in the periconceptional period, whereas 144 (51.6%) reported a step down in medication. Those in the step-down group were more likely to have milder disease (88 [61.1%] in the step-down vs. 74 [54.8%] in the no change group), exhibited less activity limitation (rate ratio [RR]: 0.68, 95% confidence interval [CI]: 0.47–0.98), and experienced fewer asthma attacks (RR: 0.53, 95% CI: 0.34–0.84) during pregnancy. The step-down group had a nonsignificant increase in overall odds of experiencing an adverse pregnancy outcome (odds ratio: 1.62, 95% CI: 0.97–2.72). Conclusion Over half of women with asthma reduce asthma medication in the periconceptional period. Although these women typically have milder disease, a step down in medication may be associated with an increased risk of adverse pregnancy outcomes. Key Points
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