Yes, I had the Nissan fundoplication back in 1998 for severe acid reflux but no hiatal hernia - I just had severe spasms of my LES - the sphinxter that stopped the acid from coming up - it just came up all the time - the sphinxter just opened and closed whenever it felt like instead of just after eating causing unbearable reflux. It came on real fast - very strange - I was diagnose with an ulcer, the ulcer healed and then the reflux started - backwards of anything they ever saw. Within 6 weeks, I had lost 35 pounds because I couldn't keep any food down - I just vomitted mouthfuls of acid all day long - lost all my top teeth. I was put on really strong acid suppressors, PPI's - nothing helped. I was on Prilosec 4 times per day and something called Propulsid also. Finally after 6 months, I had the surgery and I was reflux free.
Then in 2006, I started researching WLS and it was tough to find someone that would do it and was capable of doing it. Lap band was out - not an option with the Nissan - I didn't want it anyway. After about 1 1/2 years, I went to the surgeon that did my Nissan since he started doing gastric bypass about 6 years prior but do to insurance reasons, he was out. So, I kept looking. I then went to a 3 others but didnt' feel comfortable with any of them. I felt that I needed someone with a ton of experience and someone that had experience with a prior Nissan. I then found my current surgeon and he had the experience and was known for difficult cases. So, I proceeded. He did tell me that the Nissan might have to be reversed in order to make the pouch for the gastric bypass but that I should still be reflux free afterwards since most gastric bypass patients are and to make sure, I would just take my protonix for life as a precaution - I also have a history of ulcers, so taking a PPI, would be a good idea anyway. So, I am now 3 years out and no reflux, no ulcers.
During the gastric bypass, my esophagus tore during the take down but my surgeon was able to sew it back up easily through a scope. I was on fluids and mushies for an extra 2 weeks but all went fine after that.
Just make sure you find a very experienced surgeon and make sure they have worked on someone with a Nissan before.