Bariatric Surgery

What is bariatric surgery?

Bariatric surgery, also known as metabolic surgery or weight loss surgery, is a surgical intervention for obesity.

This type of surgery has been proven to be more effective than lifestyle, dietary and medical interventions in the management of obesity. It modifies different parts of the gastrointestinal (digestive) tract to bring about weight loss.

Types of bariatric surgery

Illustration of bariatric surgery including LAGB, LSG, LRYGB, and laparoscopic biliopancreatic diversion with duodenal switch

There are 4 types of minimally invasive bariatric surgery:

  1. Laparoscopic adjustable gastric banding (LAGB), used to manage morbid obesity. This surgery reduces the size of your stomach by placing a silicone band around the upper end of the stomach. You should feel full faster, eat less, and thus lose weight.
  2. Laparoscopic sleeve gastrectomy (LSG), used to permanently reduce the size of your stomach to about 25% its original size, such that it resembles a sleeve or a tube.
  3. Laparoscopic Roux-en-Y gastric bypass (LRYGB), used to reduce the size of your stomach to a small pouch by clipping off a section of it. This small pouch is then directly attached to the small intestine, bypassing the rest of the stomach and the upper end of the small intestine.
  4. Laparoscopic biliopancreatic diversion with duodenal switch, used to reduce your stomach to about 25% of its original size, such that it resembles a sleeve or a tube. In this procedure, the middle section of the small intestine is clipped and the last part of the small intestine is attached directly to the duodenum. The separated middle section is reattached to the end of the intestine, bypassing most of the small intestine.

Why do you need bariatric surgery?

Bariatric surgery can successfully manage your weight and greatly improve obesity-associated disorders, such as:

To qualify for gastric bypass, your body mass index (BMI) must be:

  • More than 32.5, and you must have an obesity-associated disorder such as Type 2 diabetes.
  • More than 37.5.

Weight loss surgery can help you to enjoy a better quality of life and a longer lifespan. It can also help to prevent future health problems. However, you must be willing to make lifelong lifestyle changes to benefit from bariatric surgery.

Who should not undergo bariatric surgery?

Bariatric surgery may not be suitable for everyone who is severely overweight. You need to meet certain medical requirements to qualify for weight-loss surgery.

Your doctor will determine:

  • Whether you are a suitable candidate
  • Which procedure is best for you

What are the risks and complications of bariatric surgery?

Bariatric surgery is considered safe in general. There are some inherent risks as with all major surgery, such as:

  • Infection
  • Excessive bleeding
  • Adverse reactions to anaesthesia
  • Blood clots and deep vein thrombosis
  • Intestinal leaks in staple line or joints
  • Lung or breathing problems

Depending on the type of surgery, long-term complications of bariatric surgery may include:

  • Bowel obstruction
  • Dumping syndrome, causing diarrhoea, nausea or vomiting
  • Vitamin and nutrient deficiencies
  • Gallstones
  • Hernias
  • Ulcers

In the long-term, you may not lose the weight you hoped for and the weight may return. This usually happens if you do not stick to your doctor’s recommendations or fail to make the required lifestyle changes including adopting a healthy eating habit and regular exercise regime.

Why choose Gleneagles Hospital?

At Gleneagles Hospital Singapore, we are committed to giving you comprehensive care and access to the most suitable bariatric surgery procedure for your situation.

Our multidisciplinary team of surgeons, dietitians, nurses and therapists will support you at every step of your journey towards long-lasting weight loss and better health.

Our general surgeons

At Gleneagles Hospital, our team of experienced general surgeons are committed to your success in achieving significant weight loss and lower health risks through bariatric surgery.

Our doctors will work with dietitians and nurses to create a customised plan to manage your obesity and improve your lifestyle.

Please check with your insurance provider for more information, and for their most up-to-date list of panel doctors.

^Specialists may qualify to be on the Extended Panel (EP). You may enjoy selected panel benefits depending on your policy and riders.
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