• Stomach volume is reduced, but it continues to function normally so most food items can be consumed in small amounts.
• No dumping syndrome because the pylorus is preserved.
• Eliminates the portion of the stomach that produces the hormones that stimulates hunger (Ghrelin).
• No dumping syndrome because the pylorus is preserved.
• Minimizes the chance of an ulcer occurring.
• By avoiding the intestinal bypass, the chance of intestinal obstruction (blockage), anemia, osteoporosis, protein deficiency and vitamin deficiency are almost eliminated.
• Very effective as a first stage procedure for high BMI patients (BMI >55 kg/m2).
• Limited results appear promising as a single stage procedure for low BMI patients (BMI 35-45 kg/m2).
• Appealing option for people with existing anemia, Crohn's disease and numerous other conditions that make them too high risk for intestinal bypass procedures.

Possible Complications from Surgery
The surgeon performs the gastric sleeve and lap-band procedures laparoscopically using an instrument with a tiny camera that is introduced into the belly through several small incisions. Although this is a minimally invasive procedure compared to one that is performed through an abdominal incision, any surgical procedure involves some risks. Complications may include hemorrhage (bleeding), blood clots, leaking at the surgical site, or infection. Possible anesthesia complications could include breathing problems and allergic reactions. There is also some risk of damage to the stomach, intestines or other organs, internal scarring or leaking from the surgical site.