Abstract
重症哮喘(severe asthma)患儿在临床上较为常见.由于严重的支气管痉挛、黏液过度分泌和气道炎症、水肿等影响,如不及时治疗可发展至呼吸衰竭甚至死亡,是临床急症之一.重症哮喘在全球仍是收入PICU患儿的常见疾病,并仍然有很高的病死率.有资料报道,美国15岁以下哮喘患儿病死率从1979年的1.2/10万上升至1995年的2.1/10万.我国目前尚无全国性流行病学调查数据.高度重视、早期确诊、恰当治疗、减少并发症是降低病死率的关键[1]。
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