The VSG removes 80% or so of your stomach permanently, but leaves the pyloric valve in tact. Removing the stomach is believed to help reduce the production of the hormone, ghrelin, which causes hunger. Most surgeons who do it as a stand-alone, shape the new stomach around a 32 French bougie. The intestines are left in tact and not altered.
With the MGB, a long vertical pouch, similar to a sleeve, is created with a staple gun--
but the stomach outside of the pouch is not removed. The pyloric valve is not left as part of the long tube... an opening is made which is then attached to the bowel that is brought up.
If you were looking at a restrictive only operation (no malabsorption/intestines), then I'd choose the VSG over the Band. (And I've had a Band for 6 years.)
If you're looking at a malabsorptive operation, then you have a couple of options... 1)Do the VSG, and if need be, add the DS component down the road 2) Do the MGB or 3) the RNY.
Lap-Band June 14, 2001. Dr. Rumbaut, Monterrey, Mexico.
Lap-Band removed after 7 years and converted to Sleeve Gastrectomy on July 7, 2008 by Dr. Roslin. I've had three happy healthy Lap-Band babies.... and one VSG baby. 5 years out from revision to VSG. Gained 55 pounds in past 5 months, now considering DS. :(