Once it is found that you qualify for bariatric surgery, you and your doctor are going to need to determine the weight loss procedure that makes the most sense for your health, BMI, budget, and commitment to weight loss. One of the most common options used by bariatric surgeons today is known as the gastric sleeve or the “vertical sleeve gastrectomy.”
Yet despite the success of gastric sleeve, there is another related surgery, known as the duodenal switch, that may support greater weight loss in patients. But how do gastric sleeve and duodenal switch compare? We explore the two options in this article.
Duodenal switch and gastric sleeve have some similarities because the gastric sleeve actually began from a modification of the duodenal switch. The duodenal switch involves both a restrictive component (the stomach removal, which prevents overeating) as well as a malabsorption component (the rerouting of the small intestine, which reduces time in the stomach so your body can’t process all of the calories).
However, researchers and bariatric surgeons eventually started studying whether or not the restrictive component alone could promote weight loss. After several years of study, they found that for many, the restrictive component alone was enough, and so they turned it into its own bariatric surgery, known as the “Vertical Sleeve Gastrectomy,” or “Gastric Sleeve.”
That means gastric sleeve is, in many ways, simply a less extreme version of the duodenal switch.
There are very few differences between the restrictive component of the duodenal switch and the vertical sleeve gastrectomy. Most of the differences between the two procedures are related to the rerouting of the small intestine. However, this difference is significant, with both advantages and disadvantages. Differences include:
Overall, the duodenal switch has a greater success rate than the gastric sleeve. It is considered the preferred option for severely obese patients that require immediate, rapid weight loss intervention.
However, the gastric sleeve provides most of the same weight loss benefits with fewer complications and fewer long term follow-ups and risk. For most patients, the gastric sleeve is a preferable choice as it can be converted to the duodenal switch if it proves ineffective. But some surgeons may recommend the duodenal switch, particularly for high-risk patients.