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.
Gastric banding leads to loss of about 40 to 50% of excess weight. For example, someone who is 100 pounds overweight might expect to lose about 40 to 50 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.
People tend to have few problems as a result of gastric banding surgery. The risk of death due to gastric banding surgery is less than one in 3,000. 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.
Ask your doctor exactly what you can expect. It may depend, in part, on what you weigh now and the type of surgery you get
Gastric Banding or sleeve gastrectomy is quickly becoming the preferred surgical procedure. People who get this operation lose about 40% to 50% of extra weight, on average.
On average, people lose 60% of their extra weight after gastric bypass surgery.
Most gastric bypass surgery is laparoscopic, which means the surgeon makes small cuts. That makes for shorter recovery time.
Most people stay in the hospital 2 to 3 days, and get back to normal activities in 3 to 5 weeks.
If the surgery must be “open,” meaning the surgeon has to make a larger cut, healing takes longer.
Most people experience no serious problems after weight loss surgery. Only about 10% have minor complications. Less than 5% have serious complications. If you do have any problems that concern you, check in with your doctor.
Constipation is common after weight loss surgery. Your doctor can let you know how to handle it. Avoid granular fiber (psyllium), which can cause obstructions.
• Dumping syndrom happens after eating high-sugar meals after weight loss surgery Sodas or fruit juices are often to blame. The sugary food rushes through the stomach and can cause nausea, vomiting, and weakness.
• Gallstones are common when you lose a lot of weight quickly. Up to 50% of patients will develop gallstones after gastric bypass surgery, and these are usually harmless. Sometimes, gallstones can cause nausea, vomiting, and abdominal pain. About 15% to 25% of people need surgery to remove their gallblader after gastric bypass surgery.
• Wound infections can happen up to 3 weeks after surgery. Symptoms include redness and warmth, pain, or thick drainage (pus) from the surgical wound. Wound infections require antibiotics and sometimes further surgery.