病例摘要患儿女,3个月,因“间断咳嗽、憋气2个月”收治。2个多月前无诱因患儿出现憋气、咳嗽,于当地诊断为“肺炎”,住院治疗,静点“头孢类”抗生素5天,症状好转出院。其后患儿反复出现憋气、咳嗽,当地医院均按“肺炎治疗”。入院前3天,上述表现加重,并出现口周绀,恶心,伴发热半天,体温最高 Case summary Children with children, 3 months, due to “intermittent cough, suffocation 2 months” admitted. More than 2 months ago no incentive children with suffocation, cough, diagnosed locally as “pneumonia”, hospitalization, intravenous “cephalosporins” antibiotics for 5 days, the symptoms improved discharge. Subsequently, children repeatedly appear suffocating, cough, local hospitals are treated according to “pneumonia.” 3 days before admission, the above performance worsened, and there are perioral cyanosis, nausea, fever with half a day, the highest body temperature