The small intestine brought from below is connected to the upper small gastric chamber. With the “Gastric Bypass”, it is aimed to both eat less and decrease the absorption of what they eat. Gastric bypass, which is the most frequently applied method in the USA, tends to decrease proportionally due to the fact that sleeve gastrectomy surgeries are more preferred. Experience shows that the biggest disadvantage of this method is that it is technically very difficult to switch to a second method in case of weight gain after gastric bypass.
Although the need for a second surgery after gastric bypass is less than the sleeve gastrectomy method, the transition to Duodenal Switch, which is the most successful method in terms of both diabetes control and effective and permanent weight loss, is much easier after sleeve gastrectomy.