目的探讨经食管超声心动图(TEE)在经胸微创封堵合并主动脉瓣脱垂的高位室间隔缺损中的应用价值和方法。方法对34例合并主动脉瓣脱垂的高位室间隔缺损的先天性心脏病患儿,实施经胸微创封堵术。其中嵴下型7例,嵴内型7例,嵴上型14例,干下型6例。TEE进行前评估筛选、术中引导和术后检测。结果 34例中,31例(91.1%)封堵成功,随访5个月~2年,目前无任何并发症出现。手术开展早期有3例封堵不成功,改为体外循环下室间隔缺损修补术。结论 TEE在经胸微创封堵合并主动脉瓣脱垂的高位室间隔缺损术前评估及术中引导均具有重要意义。 Objective To investigate the value and method of transesophageal echocardiography (TEE) in transcatheter minimally invasive transection of septal defects with aortic valve prolapse. Methods Thirty-four children with congenital heart disease of high ventricular septal defect with aortic valve prolapse were treated with minimally invasive transcatheter closure. Among them, 7 were under the ridge, 7 were within the ridge, 14 were on the ridge, and 6 were under the dry. TEE pre-assessment screening, intraoperative guidance and postoperative detection. Results Among the 34 cases, 31 cases (91.1%) were successfully blocked and were followed up for 5 months to 2 years without any complications. In the early stage of surgery, there were 3 cases of unsuccessful occlusion. Instead, the ventricular septal defect repair under cardiopulmonary bypass was used. Conclusion The preoperative evaluation of TEE in transcatheter minimally invasive transcatheter closure of aortic valve prolapse with high ventricular septal defect is of great significance.