球囊扩张血管腔内成形术日益成为周围动脉、肾动脉和冠状动脉等狭窄的非外科治疗方法。近年来,成人球囊扩张冠状动脉腔内成形术的成功,促使以该法治疗小儿主动脉缩窄、肺动脉干和肺动脉瓣狭窄等症。本文首次报道23例先天性主动脉瓣狭窄患者应用经皮穿刺球囊导管进行主动脉瓣扩张术。方法:23例主动脉瓣中度或重度狭窄的患者, Balloon dilatation Endovascular angioplasty is increasingly becoming a non-surgical treatment for stenoses of peripheral arteries, renal arteries and coronary arteries. In recent years, the success of balloon angioplasty in adults has led to the treatment of pediatric aortic constriction, pulmonary arteriosus and pulmonary valve stenosis. This is the first report of 23 cases of patients with congenital aortic stenosis percutaneous balloon catheter for aortic valve expansion. Methods: Twenty-three patients with moderate or severe aortic valve stenosis,