哮喘是一种以慢性气道炎症和重构并伴随气道痉挛发作事件为特征的一种疾病,近7%的妊娠妇女罹患哮喘,而妊娠可使1/3的已患哮喘的妇女病情恶化[1-3]。诸多研究发现妊娠期严重的哮喘发作或哮喘控制不力可增加母体先兆子痫、妊娠糖尿病、早产、阴道出血、前置胎盘和剖宫产术的风险, Asthma is a disease characterized by inflammation and remodeling of chronic airways accompanied by an episode of airway spasm, and nearly 7% of pregnant women suffer from asthma, whereas pregnancy can worsen the condition of one third of women who have developed asthma [1-3]. Many studies found that severe gestational asthma attacks or poor control of asthma can increase the risk of maternal pre-eclampsia, gestational diabetes, preterm birth, vaginal bleeding, placenta previa and cesarean section,