Hi I've had a nissen fundoplication many years ago for sever GERD and now I've decided to have WLS and have been told a gastric sleeve is not an option, so I can either have a gastric sleeve bypass or a gastric omega loop bypass, my OP will require me to have a undo of the Nissen fundoplication and then the bypass done, all in one OP, will be keyhole but I may need open surgery, won't no till I'm on the table. The nissen fundoplication operation is where there pull the esophagus down and wrap the stomach around the too and stitch. Sent from my CPH1701 using BariatricPal mobile app