目的总结9个月以下婴幼儿经右腋下直切口行心脏直视手术的临床经验。方法 2012年6月-2014年9月,该院对56例9个月以下婴幼儿施行右腋下直切口心脏直视手术,观察手术效果。结果全组病例无并发症及死亡,均痊愈出院,术后半年随访无异常。结论右腋下直切口应用于9个月以下心脏直视手术安全可靠、创伤小、切口美观,但要求手术操作精细。 Objective To summarize the clinical experience of under-the-moon straight incision for infants under 9 months. Methods From June 2012 to September 2014, 56 cases of infants under 9 months of age underwent direct right right axillary incision under open heart surgery. The surgical results were observed. Results There was no complication and death in all the cases. All cases were cured and discharged. There was no abnormality after six months’ follow-up. Conclusion The right axillary straight incision is safe and reliable, with less trauma and beautiful incision, but it requires fine operation.