Cece wrote:I vote for "elastic recoil."
It's a term drsclafani has used, I think it means exactly what you're describing.
I agree too that this is a very different sort of stenosis that arterial plaque build-up.
I suspect one reson definitley is elastic recoil, but we don't know yet. I slo suspect that the trauma that the vessel intima suffers when the balloon stretches it way beond its revious shape may result in "healing" or scaring that closes the vessel. In this way it may be similar to what they are seeing in arterial restenosis, and may even result in a person getting worse than they were before treatment. It is very important to start to get on top of this phenomena, especially if people start to get worse after tretment than they were before.
Maybe a series of balloons of gradually increasing size will be better. Maybe as small a balloon as possible to restore adequate flow to minimize trauma (Dr. Sclafani thinks probablly the biggest balloon possible without rupturing the vessel ... who knows yet?)