Good Luck with your op, mine is on the 15th August. I don't think there is anything you can do to prepare except maybe make yourself some pureeed food for when you can start to eat again. Just relax and know that it will all be over soon. Let me know how you go, will be very interested. I know that I have read some great advice from thsi forum about
after surgery regarding the gas pain ect. Just make sure you keep moving and follow the after diet to the letter because if you try to eat solids too quickly u will stretch the tissue in the stomach and undo all the good work.