The Duodenal Switch: How It Works
The duodenal switch is a two-step surgical process that involves both restrictive and malabsorption mechanisms to achieve weight loss.
Restrictive Component:
In the first part of the procedure, approximately 70-80 percent of the stomach is removed, creating a smaller stomach pouch.
This reduced stomach capacity restricts the amount of food that can be consumed in one sitting.
The smaller stomach pouch induces the feeling of fullness earlier, helping patients consume fewer calories and ultimately leading to weight loss.
Malabsorption Component:
The second part of the duodenal switch involves rerouting a section of the small intestine.
The surgeon detaches the duodenum, the first part of the small intestine, and reconnects it lower in the intestine.
This reconstruction bypasses a significant portion of the small intestine, where nutrient absorption primarily occurs. As a result, fewer calories and nutrients are absorbed from the food consumed.
Together, these two components work together to reduce calorie intake and nutrient absorption, resulting in substantial weight loss.