The Roux-en-Y gastric bypass procedure continues to be the gold-standard for weight loss surgery. The operation is usually performed laparoscopically (i.e. keyhole incisions); however, in some cases it may be necessary to perform an open procedure. This type of bypass operation has proven to be a consistent and effective weight loss solution.
In this gastric bypass operation, the stomach is completely divided with a stapler to leave a pouch that initially measures only 1-2 ounces. The small bowel is divided downstream from the stomach and is then connected to the small stomach pouch using a double row staple technique. The other end of the small bowel is re-connected to the small bowel about 75-100 cm downstream from the stomach. Thus, the whole stomach is bypassed apart from a tiny pouch. This operation works by decreasing the amount of food that can be consumed and by decreasing the sensation of hunger that people feel throughout the day. Patients feel full on smaller quantities of food.
The Roux-en-Y gastric bypass procedure has been proven to be very effective as a weight loss tool. Patients will often lose 65-75% of their excess body weight allowing them to increase their activities and live a more active lifestyle. Long term results are dependent on maintaining good nutritional habits and post-gastric bypass rules for eating.
Effective weight loss operation in most patients (although where patients end up is always dependent on how they use the tool they are given)