They remove the wrap that is the cause of most problems, unless the surgeon cuts your vegus nerve. That you will not recover from and life long problems. Most surgeons will not reverse a Nissen Fundoplication and most insurance's will not pay for it. I have to fly from Idaho to Atlanta, where I found a surgeon that speciallizes in this and does 2 to 3 per week. I did not want someone that has done only one or 2. Good luck to you!