okay I am going to go out on a limb here. you might seriously consider a second opinion before your Mum undergoes such a radical surgery. I am trying to understand why she is having her esophagus removed when she doesn't have a staged cancer, is this correct?
there are three centers that have started doing Cryo-ablation to treat barretts esophagus,, the precursor to actual EC. Two are in TExas, and one is in Binghamton NY. This surgery a fancy endoscopy freezes tissue and has a great outcome. Please, before you take this huge step, get a second option.
My husband is recoverying after stage 2 cancer, chemo, radiation and surgery (46 days in the hosptial- many complicatons, but finally home now. he has lost about 30lbs all told. Good luck.