We conclude that PTPV can attain an excellent success rate in infants and neonates with severe to critical valvular pulmonary stenosis without sequelae.

• 我们认为新生儿及婴幼儿患有重度肺动脉瓣膜狭窄，实施PTPV可以达到很好的成功率，而没有后遗症。