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本组患儿年龄幼小(7天～10个月)、体重甚轻(2.9～10kg)而不能耐受完全纠治术,经肺动脉缺血严重,故行经皮肺动脉瓣球囊成形术作为姑息性治疗。8(男5、女3)例紫绀型先天性心脏病患儿中:法乐氏四联症3例;大血管转位伴室间隔缺损、肺动脉瓣及瓣下狭窄2例;严重肺动脉瓣狭窄伴右室发育不全(室间隔完整)2例;右位心、心室反位(S.L.L.)、室间隔缺损、肺动脉瓣及瓣下狭窄1例。至少2处肺血流受阻,为球囊成形术的先决条件。所用球囊直径为肺动脉瓣瓣环直径的1.2～1.4倍。球囊加压充盈,达到3～5个大气压,维持5～8秒。每例加压充盈4次,二次之间至少相隔5分钟。
The children of young age (7 days to 10 months), very light weight (2.9 ~ 10kg) and can not tolerate complete correction surgery, severe pulmonary artery ischemia, so the line percutaneous pulmonary valve balloon angioplasty as a palliative treatment. 8 (male 5, female 3) cases of cyanotic congenital heart disease in children: tetralogy of Fallot in 3 cases; major vessel transposition with ventricular septal defect, pulmonary valve and subvalvular stenosis in 2 cases; severe pulmonary valve stenosis With right ventricular hypoplasia (complete ventricular septum) in 2 cases; right ventricular, ventricular translocation (SLL), ventricular septal defect, pulmonary valve and subvalvular stenosis in 1 case. Obstruction of pulmonary blood flow in at least 2 locations is a prerequisite for balloon angioplasty. The diameter of the balloon is 1.2 to 1.4 times the diameter of the pulmonary valve annulus. Balloon filling pressure, reaching 3 to 5 atmospheres, to maintain 5 to 8 seconds. Each case filled with pressure 4 times, at least 5 minutes between the second.