Balloon pulmonary valvuloplasty is a safe and effective treatment for isolated pulmonary valve stenosis. Several balloon catheters are available for this procedure in neonates and infants. However, obtaining additional vascular access for the double-balloon technique in this population is troublesome, and tricuspid valve injury is a concern. We used a TMP PED balloon catheter to perform valvuloplasty in 2 infants with isolated pulmonary valve stenosis. This thin-walled, relatively large 12-mm balloon catheter can be delivered through a small-diameter sheath. In both cases, the transpulmonary pressure gradient was reduced without causing any valvular or vascular injuries. Neither patient had recurrent pulmonary valve stenosis. Together, these cases highlight the suitability and feasibility of using the 12-mm TMP PED balloon catheter for treating young infants with valvular stenosis.

球囊肺动脉瓣膜成形术是治疗孤立性肺动脉瓣狭窄的一种安全有效的方法。在新生儿和婴儿中，有几个球囊导管可用于该程序。然而，在该人群中为双气囊技术获得额外的血管通路是麻烦的，并且三尖瓣损伤是一个问题。我们使用TMP PED球囊导管对2例患有孤立性肺动脉瓣狭窄的婴儿进行瓣膜成形术。这种薄壁的相对较大的12毫米球囊导管可以通过小直径的护套输送。在这两种情况下，经肺压力梯度均降低而不会引起瓣膜或血管损伤。两名患者均未再发肺动脉瓣狭窄。一起，