Dr. Wade Barker explains laparoscopic gastric bypass surgery at his Dallas/Ft. Worth bariatric surgery center. Gastric bypass surgery helps patients lose weight because it greatly restricts the amount of food they can eat and limits absorption of some calories. During Roux-en-Y gastric bypass surgery, Dallas/Ft. Worth surgeon Wade Barker, MD, uses staples to create a small pouch at the top of the stomach. He then connects this pouch to the lower part of the small intestine. Visit blog.DrWBarker.com and www.DrWBarker.com for more information about weight loss surgery.