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本文报告对6例小儿先天性主动脉瓣狭窄行经皮球囊主动脉瓣成形术(PABV)。年龄4～8岁(平均4.9岁)。结果:主动脉瓣环发育良好组4例,左室至升主动脉跨瓣压差8.8±1.7kPa,术后降至1.7±1.2kPa,Doppler超声随访跨瓣压差稳定下降;主动脉瓣环发育不良组2例,治疗效果不明显,非PABV首选指征。6例均无并发症。1例有轻度主动脉瓣返流。作者认为选用球囊应略小于瓣环或不超过瓣环的100～110%,双球囊扩张术对重症者及年长儿主动脉瓣环大于20mm时可选用。
This article reports 6 cases of pediatric congenital aortic stenosis underwent percutaneous balloon aortic valvuloplasty (PABV). Aged 4 to 8 years old (average 4.9 years old). Results: In 4 patients with well-developed aortic annulus, the pressure difference between the left ventricle and the ascending aorta was 8.8 ± 1.7 kPa and decreased to 1.7 ± 1.2 kPa after operation. The Doppler ultrasonographic follow- 2 cases of dysplasia group, the treatment effect is not obvious, non-PABV preferred indications. No complications were found in 6 cases. One case had mild aortic regurgitation. The authors believe that the selection of the balloon should be slightly less than the annulus or no more than 100 ~ 110% of the annulus, double balloon dilatation of the severe cases and older children when the aortic annulus greater than 20mm may be used.