本文报告120例婴幼儿动脉导管未闭,107例诊断明确,施行动脉导管结扎术;9例室缺肺高压合并动脉导管未闭,先结扎动脉导管,3～6月再作室缺纠治术,另3例室缺肺高压和1例房缺合并动脉导管未闭,在心内直视术中处理好动脉导管,避免发生并发症。本组治疗经验是动脉导管未闭诊断确立后拟早期手术,如病情需要可急诊手术;室缺和房缺合并动脉导管未闭,可作一期纠治术,以减轻病儿二次手术的痛苦。 In this paper, 120 cases of patent ductus arteriosus in infants and young children were reported, of which 107 cases were diagnosed as definite ductus arteriosus. Nine cases of pulmonary hypertension combined with patent ductus arteriosus were ligation of the ductus arteriosus and 3 to 6 months later, , Another 3 cases of pulmonary hypertension and 1 case of atrial septal defect with patent ductus arteriosus in the open heart surgery, to avoid complications. This group of treatment experience is the diagnosis of patent ductus arteriosus after the establishment of the proposed early surgery, such as the condition needs emergency surgery; ventricular septal and atrial septal incompetence with patent ductus arteriosus can be used for a period of correction surgery to reduce the re-operation of sick children pain.