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10 February 2021

Nutrition and Diet

Obesity Surgery (Bariatric Surgery)

Obesity Surgery (Bariatric Surgery)

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  • What is the obesity surgery?
  • Obesity, which is the second most common cause of death in the world after smoking, causes diseases such as heart and diabetes, and decreases the quality of life. If no action is taken, it will lead to disability and premature death. Obesity surgery, or stomach reduction surgery, as it is commonly known, is applied to reach a healthy body for people with excess weight who cannot lose weight with diet.


  • Severe obesity: Why is surgery necessary?
  • Severe obesity is one of the most serious stages of this disease. At this stage, the overweight person could not lose weight despite dieting many times, and even gained weight and realized that he could not prevent it. Studies conducted by many health institutes around the world reveal that the body in the treatment of obesity leads to failure by developing resistance to diet, exercise and weight control programs, and obesity (bariatric) surgery provides long-term weight control in the treatment of obesity.


  • What is the benefit of obesity surgery? 
  • When combined with a detailed and careful treatment plan, bariatric surgery is a very effective treatment for long-term weight control. Accordingly, it makes a big difference in increasing the quality of life of the patient. In the five-year follow-up after obesity surgeries. It was found that death rates caused by obesity-related diseases such as heart and diabetes decreased by 89% compared to patients without surgery. Comparing patients who underwent surgery and those who did not, it was found that there was a 90% reduction in mortality due to diabetes and a 50% reduction in mortality due to heart diseases.


  • How does obesity surgery work?
  • After obesity surgery, with the change of stomach and intestinal anatomy, the production of hormones secreted from the intestine is positively affected, and for that hunger and satiety get reduced. likewise, the patient starts to lose weight. It should not be forgotten that obesity surgery is only a tool. Success in weight loss is related to the change in the person's diet and exercise habits, as well as the surgery.


  • How is the surgery performed?
  • Obesity surgery is performed by laparoscopic, that is, closed surgery method through millimetric holes opened in the abdomen. On the same day of the surgery, the patient can stand up and get discharged a few days later. Because of laparoscopic surgery, there is almost no scar on the body. 


  • How many bariatric surgery methods are there?
  • Obesity surgery is performed with two methods: sleeve gastrectomy and gastric bypass. Sleeve gastrectomy surgery, commonly known as "stomach reduction surgery", is the most commonly used method nowadays. In tube stomach surgery, the stomach is turned into a long thin tube like a banana. 80 percent of the stomach is excised with laparoscopic, that is, closed surgery method. Thus, the food intake of the stomach is restricted. One of the advantages of sleeve gastrectomy is its effect of reducing food absorption, even though it is very low.
  • In gastric by-pass surgery, a large part of the stomach is by-passed and a separate stomach section with small hips (approximately 30-50 cc) is prepared and sutured to the small intestines. In gastric bypass surgery, it is aimed to reduce the volume of the stomach and to exclude some of the consumed food without being absorbed by deactivating some of the intestines. Thus, patients are saturated with less food and some of the food they take is absorbed.
  • How is the operation method decided?
  • The physician decides on the method of surgery, taking into account the characteristics of the patient. While sleeve gastrectomy is preferred primarily in the vast majority of patients, rarely the first surgery option may be gastric bypass.
  • Some overweight patients lose even a little weight with gastric balloon application or special diets before surgery. In determining the treatment method, the questions asked in the first interview with the patients: " Are you diabetic, and is it in an advanced stage?", "For how many years you are using insulin and in what dosage?" Answers to such kind of are taken into consideration.


  • How long after surgery can I go back to work?
  • The person can return to work one week after surgery. 


  • Is it a painful surgery?
  • Since there is no incision in laparoscopic surgery, pain is felt very little. Pain can be felt for few days after surgery, and it can be controlled with medication.


  • What should I pay attention to in my diet after bariatric surgery?
  • + Do not consume solid and liquid foods together at meals.
  • + Do not consume fluids half an hour before and after meals.
  • + Take a break from alcohol consumption.
  • + Chew your food thoroughly.
  • + Eat it slowly in small bites. 
  • + Do not consume high-calorie foods.
  • + Stop eating the moment you feel full or nauseous.
  • + Do not eat carbohydrates.
  • + Make sure all your food is lukewarm. It should be neither too hot nor too cold.
  • + Drink two liters of water a day.
  • + Prefer boiled, steamed or baked foods instead of frying and roasting.
  • + Avoid legumes and vegetables that cause gas for at least a month.
  • + Do not eat raw vegetables for the first three months.
  • + Do not; drink coffee, consume citrus fruits, stay away from spices for the first month.
  • + Stop the carbonated drink completely.
  • + Do not consume raw nuts and pickles for the first three months.
  • + Eat protein, vegetables and fruits.
  • + Start walking one week after surgery. You can increase your exercise level by the time after the surgery.
  • + Follow the nutrition program given to you.


  • To what should I pay attention while choosing the physician to perform my surgery?
  • The surgeon's experience is very important for safe and accurate bariatric surgery. We hear about people who lost weight after bariatric surgery and then regained their weight.
  • The only way to prevent this situation is the correct surgical technique, experience and correct follow-up.



General Surgery