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Laparoscopic Gastric Banding

If you and your doctor have decided that weight -loss surgery is right for you, then you have some options to choose from. In a restrictive surgery, a surgeon uses one of a variety of techniques to reduce the size of the stomach . After restrictive surgery, you’ll feel full faster, eat less, and lose weight.

The full names for the two types of restrictive surgery for weight loss are:

  • Laparoscopic adjustable gastric banding — which is also known as “gastric banding,” and is the most common restrictive surgery
  • Vertical banded gastroplasty

What Is Gastric Banding Surgery? How is the procedure done?

The surgeon uses laparoscopy (which involves small cuts in the belly) to place an adjustable silicone band around the upper part of the stomach. Squeezed by the silicone band, the stomach becomes a pouch with about an inch-wide outlet. After banding, the stomach can hold only about an ounce of food.

A plastic tube runs from the silicone band to a device just under the skin. Saline (sterile salt water) can be injected or removed through the skin, flowing into or out of the silicone band. Injecting saline fills the band and makes it tighter. In this way, the band can be tightened or loosened as needed to reduce side effects and improve weight loss.

The GaBP Ring Autolock™ is a prefabricated, calibrated and sterilised silicone coated implantable device that is designed specifically to control the reservoir capacity in gastric bypass, gastroplasty and sleeve gastrectomy operations. The progressive weight regain after the Sleeve Gastrectomy has been well documented in most cases to be due to the dilatation of the sleeve with increase in the gastric reservoir and the ability of increased caloric intake. Banding the proximal pouch of the Sleeve operation at the time of the initial operation creates a proximal pouch within the sleeve. This proximal pouch becomes the reservoir that eventually will continue to provide the restrictive satiety effect of the sleeve. Banding the pouch in the gastroplasty operations increased both the weight loss and weight loss maintenance.

What Are the Results of Gastric Banding?

Gastric banding leads to loss of about 40% of excess weight. For example, someone who is 200 pounds overweight might expect to lose about 80 pounds after gastric banding. However, these results vary widely. Gastric banding is considered the least invasive weight loss surgery and also the safest. The procedure can be reversed if necessary, and in time, the stomach generally returns to its normal size.

What Are the Side Effects?

People tend to have few problems as a result of gastric banding surgery. The risk of death due to gastric banding surgery is about one in 2,000. The most common problems after gastric banding surgery include:

  • Nausea and vomiting. These can often be reduced by adjusting the tightness of the band.
  • Minor surgical complications. These include problems with the adjustment device, wound infections, or minor bleeding and occur less than 10% of the time.

Unlike gastric bypass surgery, gastric banding does not interfere with food absorption. For this reason, vitamin deficiencies are rare after gastric banding.

What Is Vertical Banded Gastroplasty?

Vertical banded gastroplasty (VBG) also involves a plastic band placed around the stomach. In addition, the surgeon staples the stomach above the band into a small pouch.

Vertical banded gastroplasty results in less weight loss, compared with other surgeries. It also has a higher complication rate. For these reasons, vertical banded gastroplasty is less common today. Only 5% of bariatric surgeons still perform this surgery.

What Is a Mixed Surgery? ( Restrictive and Malabsorptive )

Restrictive surgery is an important part of nearly all weight loss surgeries. During a gastric bypass, the most common weight loss surgery, restrictive surgery is done first. This stomach stapling" creates a small stomach pouch. Then, the new stomach pouch is reconnected to a part of the small intestine farther down. This leads to less food eaten (restrictive) and less food absorbed (malabsorptive).

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