Gastric Sleeve
The vertical sleeve gastrectomy is a restrictive form of weight loss surgery in which approximately 85% of the stomach is removed leaving a cylindrical or sleeve shaped stomach. While the stomach is drastically reduced in size, its function is preserved. The sleeve gastrectomy is not reversible. Because the new stomach continues to function normally there are far fewer restrictions on the foods which patients can consume after surgery, albeit that the quantity of food eaten will be considerably reduced.

Gastric Bypass Surgery 
While many methods for treating obesity have been tested and tried through the years, gastric bypass—has proven successful in a high percentage of patients and is considered the gold standard of care. The success rate for gastric bypass surgery exceeds 90%, with most patients able to lose more than 40% of their excess weight and maintain that weight loss for more than five years. Mortality and morbidity also are low, with less than 1% of patients failing to survive the procedure or the challenging weeks that Roux en Y Gastric Bypass: This is the gold standard for obesity surgical treatment with greater than 70% success with greater than 50% weight loss for more than five years.
As with any surgical procedure, gastric bypass surgery has its potential shortcomings. Vitamin and mineral deficiencies, as well as anemia, are just a few of them. Long-term complications include deficiencies of iron, calcium, fat-soluble vitamins A, D and E, vitamin B12, folic acid, B1 and B6. Anemia is reported predominantly in women who are menstruating.

The Adjustable Gastric Banding System
This is a minimally invasive procedure where an adjustable silicone band is inserted around the upper part of the stomach. This creates a new, smaller upper stomach pouch and leaves the larger part of the stomach below. An access port allows the surgeon to adjust the opening by adding or removing saline. Patients feel fuller sooner and eat less at each meal.

The Fobi-Pouch
The Fobi-Pouch has been performed successfully in one form or another for many years. Also called the Transected Vertical Gastric Bypass with a Silastic Ring Band, or gastrostomy with a gastrostomy site marker, the increasingly popular procedure is a modified version of one whose roots date back to the early 20th century.

There are three important statistics that make the procedure significant.

• It is 95% effective, meaning that most people who undergo the Fobi-Pouch procedure lose more than 40% of their excess weight and maintain that weight loss for more than five years.
• Fewer than 1% of recipients fail to survive the surgery.
• Fewer than 10% experience poor health as a result of the operation. Clearly, variations of the procedure would not have been used for more than a century if desired results were not produced.