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目的:总结采用ePTFE人工带瓣血管构建右心室流出道的自体肺动脉瓣行主动脉瓣置换术(Ross手术)治疗儿童主动脉瓣狭窄和/或关闭不全的临床经验。方法:回顾分析我中心2015年至2020年采用Ross手术治疗的8例主动脉瓣狭窄和/或关闭不全患儿的临床资料，年龄0.5~13.2岁，术前诊断主动脉瓣狭窄4例、主动脉瓣狭窄伴关闭不全3例、感染性心内膜炎累及主动脉瓣1例。手术主要分三步进行：获取自体肺动脉瓣；切除病变的主动脉瓣，采用主动脉根部移植法将自体肺动脉瓣移至主动脉瓣；利用手工缝制的ePTFE人工带瓣血管重建右心室流出道。结果:6例右心室流出道采用手工缝制ePTFE人工带瓣血管重建，2例采用人工单瓣，无手术死亡，全部患者治愈出院。随访1~36个月，中位随访时间12个月，无远期死亡，无瓣膜相关并发症。随访超声心动图检查提示1例主动脉瓣中量反流，1例少-中量反流，其余为少量反流；肺动脉瓣中2例采用人工单瓣的少量反流，其余采用手工缝制的ePTFE人工带瓣血管肺动脉瓣少量反流或微量反流；所有患者末次随访主动脉瓣跨瓣峰值压差(6.63±3.46)mmHg(1 mmHg＝0.133 kPa )。左心室流出道及主动脉瓣环在术后会稍缩小(1例Ross-Konno手术患者直径增大)，但随着年龄的增长瓣环直径均呈增长趋势，目前暂无需要再次干预者。结论:Ross手术用于治疗主动脉瓣膜疾病安全，血流动力学效果好，自体肺动脉具有生长潜能，尤其适用于儿童及年轻患者。用于重建右心室流出道的手工缝制ePTFE人工带瓣血管短期内抗反流功能良好，或可做为同种/异种带瓣管道替代材料，但仍需更长时间的随访及更多的病例积累。“,”Objective:To review and analyze the clinical experience of children with aortic valve stenosis and/or insufficiency treated with autologous pulmonary valve for aortic valve replacement procedure(Ross operation) with ePTFE artificial valve for right ventricular outflow tract reconstruction.Methods:From 2015 to 2020, 8 cases of aortic stenosis and/or aortic insufficiency treated by Ross operation in our center were collected, with an age of 0.5-13.2 years old. 4 cases of aortic stenosis were diagnosed preoperatively, 3 cases of aortic stenosis with aortic insufficiency, and 1 case of infective endocarditis involving the aortic valve. The operation was carried out in three steps: Harvest autologous pulmonary valve; the diseased aortic valve was resected and autologous pulmonary valve was transplanted to the aorta by aortic root transplantation; the right ventricular outflow tract was reconstructed by a handmade ePTFE artificial flap blood vessel.Results:In 6 cases, the right ventricular outflow tract was reconstructed by hand-sewn ePTFE trileaflets, and artificial univalve in 2 cases, no death occurred during operation; all patients were cured and discharged. The patients were followed up for 1 to 36 months, with mean of(12.63±12.19) months. There was no long-term death or valvular complications. During follow-up echocardiography indicated 1 case of moderate aortic regurgitation, 1 case of mild-moderate regurgitation, and moderate regurgitation was found in 2 patients with artificial single pulmonary valve. For the remaining patients, they were mild aortic regurgitation, and a trivial or mild pulmonary artery regurgitation with hand-sewn three-leaflets ePTFE artificial vessel; All patients were followed up at the last time with a peak pressure of(6.63±3.46) mmHg(1 mmHg=0.133 kPa) across the aortic valve. The left ventricular outflow tract and aortic annulus shrank slightly after surgery(the diameter of one patient with Ross-Konno operation increased), but the annulus diameter increased with age. There was no need for further intervention.Conclusion:The Ross operation is safe for the treatment of aortic valve disease, it has good hemodynamic effect, and the autologous pulmonary artery has growth potential, especially suitable for children and young patients. Hand-sewn ePTFE with trileaflet vessels for reconstruction of right ventricular outflow tract performs well in anti-regurgitation function in the short term or may be used as a replacement material for the homograft/heterograft vessel, but longer follow-up and more cases are needed.