Every surgeon's pre-op procedures are different. For my reversal surgery the only requirement was no food after midnight the night before surgery. Some surgeons require much longer periods of fasting. I am sorry about your cancellation. It's very hard to mentally and emotionally prepare for something like this and then not have it done.
dx proctitis in 1987
dx UC in 1991, was stable until 1998
1998 started prednisone, asacol, pentasa, nortriptylene, ativan, 6MP, rowasa enemas and suppositories, hydrocortisone enemas, tried the SCD diet, being a vegetarian, omega 3s, flax, pranic healing, yoga, acupuncture, probiotics
2000 lost all my B-12 stores and became anemic
2001 opted for j-pouch surgery- now living life med-free