This is precisely the issue that I am facing right now: I had surgery for adult-onset idiopathic hypertrophic pyloric stenosis about twenty-five years ago, and over the past eight months or so, I have actually re-stenosed my pylorus. As I was also considering having WLS, the surgeon I have initially consulted is unsure just how safe a Roux-en-Y or sleeve is, due to the potential complications I have with scar tissue. Even though I know that adult pyloric stenosis is rare enough without talking about recurrence, I would love, just on the off-chance, to hear from anyone who has either had a WLS procedure or has faced the issue of recurrent pyloric stenosis. Thanks so much should anyone reply...this has been a hellish time for me, in terms of pain and nausea, and wanting to deal with my being overweight makes it just that much harder.