I had mostly upright reflux before surgery, but I did have a De Meester score of 52
. I had 225 episodes of reflux and 218 of them were in upright position (ph-test 24 hours).
Be sure that it´s really reflux your dealing with. Surgery is a big step and if I where you I would ask for a multi channel test or a test to check vapors (from stomach). Not sure how many hospital that offers these kinds of test, but it´s worth asking for.
Maybe you suffer from candida? Or post nasal drip? Those two conditions can create problems that are very similiar to LPR.
I truly know what you are going through, this experience with LPR/GERD has been the worst of my life so far.
Hang in there!