I had a Nissen surgery at a local hospital in Central Iowa that was supposed to fix my GERD problem.. It was botched.. the GERD got worse. 1 in 6 Nissens fail.. my Mayo GI doc told me.. I had post operative Gastroparesis... Mayo gave me the way to cope with this NON fixable proplem.. See a really good surgeon who has done hundreds.. Do your homework or you will be afflicted the rest of your life.. Ken