What is the difference between a Roux-en-Y and a Gastric by-pass?
A Roux-en-Y is a gastric by-pass! A gastric by-pass means that you cut the stomach high up so that you separate the stomach in two parts – a small upper part and a large lower part. The upper part is then connected to the small bowel a bit downstream on the small bowel. The larger lower part of the stomach is just left lying idle. It is out of the food circulation and will never again be filled with food. So you end up with a small stomach and a shorter bowel. This means that you will feel full more quickly (because of the small stomach) and that you will absorb less of the food actually eaten (because of the shorter bowel).’ Now – the small upper part of the stomach can be connected to the small bowel in a number of different ways: antecolic GE, retrocolic GE, with or without enteroanastomosis (EA), Fobi pouch – and Roux-en-Y. So the name Roux-enY is not a separate operation – it is just a technical description for the model for connecting the small stomach to the bowel. All of these
