How it works
The procedure consists of stomach-preserving bypass of a short segment of proximal small intestine, equivalent to the amount of intestine bypassed in a standard Roux-en-Y gastric bypass. DJB may be associated with a sleeve resection of the stomach to reduce potential for marginal ulceration and increase the weight loss effect if performed in mildly or severely obese patients. Long-term data about efficacy of this procedure are not yet available.
Patients have achieved 74% loss of excess weight in one year, 78% in two years, 84% in four years and 91% in five years. It lays fewer restrictions on food than other procedures & provides highest levels of malabsorption.