The average weight loss for this procedure is reported to be 50-60% of the excess weight loss over 2 years. This means, that if you are 100lbs above your ideal body weight, you would expect on average to loose approximately 50-60 pounds. However, individual weight loss will vary based upon how well you follow the post-operative guidelines.
Advantages of the Vertical Gastrectomy Weight Loss Surgery

• The stomach is reduced in volume but tends to function normally so most food items can be consumed, though only in small amounts.
• Eliminates the upper portion of the stomach that produces the hormones that stimulates hunger (Ghrelin), therefore hunger is often decreased.
• No dumping syndrome because the pyloric valve is preserved.
• Minimizes the chance of an ulcer occurring by decreasing the amount of acid secreted.
• By avoiding the intestinal bypass, the chance of intestinal obstruction (blockage), anemia, osteoporosis, protein deficiency and vitamin deficiency are greatly reduced.
• No adjustment required or foreign body inserted (as in an adjustable gastric band) that may cause obstruction, slippage or erosion.

Disadvantages of the Vertical Gastrectomy Weight Loss Surgery

• Because the stomach is removed, it is not reversible. It can though be converted to a Roux-En-Y Gastric Bypass in the future if necessary.
• There is a potential for inadequate weight loss or weight regain. While this is true for all procedures, it is theoretically more possible with procedures that do not have an intestinal bypass.
• Soft calories such as ice cream, milk shakes, can be consumed \ absorbed and these high calorie foods may slow weight loss.
• This procedure does involve stomach stapling and therefore leaks and other complications related to stapling may occur.
• Considered investigational by insurance companies, not a covered benefit.