Bariatric Surgery: Which Method to Choose, What Results to Expect?

With or without surgery, there are many ways to help you lose weight. To be effective, all these obesity treatments must be accompanied by a real change in lifestyle. Scaling the results we can expect.

“There is no obesity, but obesity, with many factors and therefore different treatments,” says Prof. Blandin Gata-Cerrifi, head of the specialist center for obesity at Bordeaux University Hospital, and no “miracle treatment”: “whatever the intervention is , weight loss will only be sustainable if a person also improves their lifestyle by eating better, learning to manage their emotions, and having more activity physically, “said Dr. Viana Kostil, a gastroenterologist specializing in management of obese here.

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Gastric bypass

What is this The surgeon reduces the volume of the stomach – therefore we are fuller faster – and connects it directly with the jejunum (the central part of the small intestine), which also slows the absorption of food. There are two types: the classic Y-shaped bypass and the mini-bypass, a simpler and faster technique, but “with significant risks of malnutrition and bile reflux in the stomach,” says Pr. Gatta-Cherifi.

What results? Overweight weight loss can reach 70% in one year and up to five% in five years. Vitamin monitoring and supplements are essential for life.

Sleeve gastrectomy

What is this An irreversible operation that involves removing 2/3 of the stomach to form a tube and thus reducing the volume of the stomach. Therefore, a person fills up faster with less food. After the intervention, the patient has a two-week absence from work, a food diet whose texture has been modified (mashed, mixed) for 2 to 3 weeks, and a long-term vitamin supplement.

What results? Lose 60% of your excess weight in one year and then 70% in five years, provided you have a better lifestyle. The main side effects are gastroesophageal reflux (burning when gastric juices rise).


What is this The placement of an adjustable gastric band (silicone) around the top of the patient’s stomach makes it possible to split the stomach into two. Over the ring, a pocket with small capacity receives food once chewed, and under the ring pocket collects food that has passed slowly through the gastric ring. The stomach volume decreases, the patient is satisfied more quickly with less food.

What results? About 40% of his overweight in one year, then 50% in five years. In return, you should eat very slowly and the risk of vomiting is frequent.

Stomach balloon

What is this Under general or local anesthesia, an outpatient balloon is placed in the stomach and then inflated to slow the digestion of the food and cause satiety.

What results? The balloon will be evacuated spontaneously or removed 4 to 12 months later. “We can expect weight loss of about 12 kg in six months, says Dr. Costil. But if the patient does not accept better food hygiene and regular physical activity in the long run, he will gain weight. “

Endoscopic gastroplasty on the sleeve

What is this Known since 2012, but still confidential in France, this technique consists in reducing the size of the stomach by using stitches made through natural paths during gastric fibroscopy under general anesthesia. It takes a month and a half before you can resume normal eating.

What results? We can hope to lose 15 kg in 6 months, but we need to adopt a better lifestyle before the stitches recede and the stomach expands again, about 2 years later.

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Bariatric Surgery: Which Method to Choose, What Results to Expect?
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