例 1 患儿男 ,2 5岁。因吸气喉喘鸣 ,反复吸气困难发作 2年半于2 0 0 0年 9月入院。患儿生后半个月无诱因出现吸气相喉喘鸣 ,曾于本院诊断“先天喉喘鸣” ,嘱补钙治疗 ,无好转。其间因上呼吸道感染、支气管炎反复出现吸气困难 ,颜面发绀。体检 :患儿发育尚可 ,口周轻度发绀 , Example 1 children male, 25 years old. Due to inspiration throat wheezing, repeated inspiratory difficulties episodes 2 years and a half in 2000 admitted to September. No incentive to induce asthma in half a month after birth, children with wheeze, had in our hospital diagnosis of “innate throat wheezing,” told the calcium treatment, no improvement. During which due to upper respiratory tract infection, bronchitis repeated aspiration difficulties, facial cyanosis. Physical examination: children may still develop, mild cyanosis of the mouth,