1临床资料患者女性,13岁,自生后7月始出现口唇青紫,常因哭闹、吃奶等加重,并逐渐出现气急。年长后常因体力活动后呼吸困难被迫蹲踞缓解,偶尔出现抽搐,持续约3min自行缓解。曾到北京阜外医院诊断为先心病(法洛四联症),建议手术,因经济条件所限未能进行。易患呼吸道感染,近3年来 1 Clinical data Female patients, 13 years old, self-appearing in July after the beginning of the lips bruising, often due to crying, feeding and other aggravating, and gradually emergencies. Elderly often because of physical activity after breathing difficulties squat squat ease, and occasionally convulsions, sustained about 3min self-remission. Fu Wai Hospital, Beijing has been diagnosed as congenital heart disease (tetralogy of Fallot), the proposed surgery, due to financial constraints failed to proceed. Susceptible to respiratory infections in the past 3 years