Gastric bypass surgery is a combination of restrictive and malabsorptive measures for losing weight. The stomach is separated into a smaller and a larger portion, which results in the patient feeling full faster after food intake. Food bypasses the first part of the small intestine, resulting in the absorption of less food.

Lap band surgery is a restrictive method in which an adjustable band is positioned around the stomach. This procedure also divides the stomach into a small and a large portion, which helps to regulate food intake while maintaining the normal digestive process. It is probably the most secure, least distressing and only modifiable and reversible obesity surgery available.

Note that people considered for weight loss surgery must be no less than 100 percent or 100 pounds overweight and show a minimum body mass index of 40 (morbid obesity).

Procedure information
In gastric bypass surgery, the stomach is stapled to create a smaller pouch (15 to 20cc). The rest of the stomach is then stapled shut and separated from the pouch. Following this, a part of the small intestine is cut and attached (stapled) to the new stomach pouch, forming a bypass. Following the procedure, fewer nutrients and calories are absorbed by the patient.

In lap band surgery, an inflatable band placed around the upper component of the stomach creates a smaller pouch that limits the intake of food and increases the time for emptying. The patient’s food consumption is restricted and his/her digestion slowed down, resulting in constant weight loss.

Recovery time
Following gastric bypass surgery, the patient is normally required to stay in hospital for about 48 to 72 hours. A great number of patients go back to normal activities within 2 to 3 weeks. Entire surgical recovery takes place within approximately 3 weeks.

After lap band surgery, the majority of patients can leave the hospital on the same day as the procedure and return to standard activities within 7 days. Full surgical convalescence will usually occur within approximately 2 weeks.