Barry is right. My 1st nissen was done incorrectly and after 13 dilatations, 2 PH studies, 2 manometries, and about 5 barium swallows we finally convinced my surgeon(different from 1st) agreed an exploratory surgery was needed.
I have since had another redo also, not an actually fault of the redo or the wrap. I had an esophageal tear and what had to be done to same my esophagus tore the wrap apart.
As for a difference with a redo, for me it was basically the same as my original except it was done correctly. My last redo was done as an open surgery and was my easiest recovery of the 3. It is harder for the surgeon as they have to undo what's left of the original and redo, so the surgery does take longer. My 1st redo was just over 5 hours and my last was just over 6 hours, but that one was a mess.
For what it's worth, I won't go without a nissen if I can help it and would do it again tomorrow if I had to.
Nissen 6/06 and 5/09
#3 on 8/24/11