Weight loss surgery, also known as bariatric surgery, is used to help people with extreme obesity to lose weight.
This can be an option for people who are not able to lose weight through exercise and diet, or have serious health problems caused by obesity like type 2 diabetes or sleep apnea.
There are a few different types of weight loss surgery. One type of surgical procedure can limits the amount of foods you can take in. Another type can affect how you digest food. All these types have risks and complications such as blood clots, infections etc.
Research shows that many people who have weight-loss surgery lost about 15 to 30 percent of their starting weight on average, but it depends on the type of surgery they have.
For some people using this surgery may not lose as much weight as they hoped.
Over time, other may regain a portion of the weight they lost.
Factors affecting weight regain include the type of surgery and the person’s level of obesity. It is good to note that bariatric surgery does not replace healthy habits, but it makes it easier for you to consume fewer calories and to be physically active.
When you get weight loss surgery, the surgeon makes changes to your small intestine or stomach or even both. Here are the different types of weight loss surgery.
They include gastric bypass, sleeve gastrectomy, and adjustable gastric band.
Gastric bypass is also known as Roux-en-y gastric bypass. This surgery is considered the gold standard of weight loss surgery.
There are two components involved; the first is where a surgeon creates a small pouch in upper section by stapling the stomach. This stapling makes the stomach to be much smaller so you eat less and feel full sooner. Next, the surgeon cuts small intestine and attaches lower part of directly to the small stomach pouch. This is to ensure you absorb few calories as food bypass the rest of the stomach and upper part of small intestine. This surgery is done through several small incisions and uses a camera to see inside.
Adjustable gastric band
Here the surgeon puts a small band around the top of the stomach. The band has a small balloon inside it which helps control how loose or tight the band is. This band helps to limit how much food goes in the stomach. It uses a laparoscope.
The surgeon removes most of the stomach and leaves only a narrow section of the upper stomach called gastric sleeve. It also curbs hunger hormone ghrelin so you eat less.
After weight loss surgery, most people lose weight for 18-24 months. If you had any medical condition related to obesity like diabetes or high blood pressure, it will improve after the surgery.
The common side effects include bloating, diarrhea, increased gas, nausea, vomiting and excessive sweating. Serious side effects include infections, a blood clot in the legs, bleeding, and leaks from the stitches. But most people do not get any of these.