As the child grows, a valve that was ballooned may once again become narrowed. If this happens, a second balloon procedure or operation may be necessary to repair aortic stenosis.

• 随着孩子的成长,球囊扩张开的瓣膜可能会再次变狭窄。如果发生了,再次球囊导管介入或手术对于修复主动脉狭窄可能是必要的。