Gastric sleeve surgery is performed by laparoscopic method. Laparoscopic surgery is a closed surgical technique. As in open surgeries, 10-15 cm incisions are not opened. Instead, a few 0.5 cm holes are made, and the camera and treatment tools are sent to the abdomen through these holes. On the one hand, the surgeon monitors the operating area from the high-resolution monitor in front of him; on the other hand, the treatment is performed. This technique makes the surgery more comfortable and safe and the post-operative process faster and less painful. In an operation performed under general anaesthesia, 80 per cent of the stomach is removed with the help of staplers and in the light of the seat tube. The most crucial point of the surgery is to control the bleeding in the suture line after the stomach is removed. The stomach is inflated with the help of special dyes to determine whether there is any leakage in the suture line. After the controls, the tube sent at the beginning of the surgery is removed, and the drainage system is placed.

• In exceptional cases, those between 18 and 65 can also have surgery under 18 and over 65 if the board decides.
• Those with a body mass index over 35,
• Those with a body mass index between 30-35 and other weight-related diseases (hypertension, cholesterol, diabetes, sleep apnea, heart failure, metabolic syndrome, etc.)
• Those who have tried other treatment methods to lose weight and failed,
• Those who can handle surgery and anaesthesia,

**They can have Gastric Bypass surgery.

• Those with severe and untreated psychiatric illness,
• Those with substance or alcohol addiction,
• Patients with severe hormonal disorders,
• Patients who cannot make the necessary changes in diet and lifestyle after surgery,
• Those who have a disease that will prevent anaesthesia,
• Cancer patients,
• Those who are planning a pregnancy within 1 year shortly,

**These cannot have gastric sleeve, gastric bypass, or any other metabolic surgery

The most crucial point for these operations is that patients should know that a new life awaits them in the postoperative period. Adopting a low carbohydrate-high protein diet with the guidance of a nutritionist, eating little and often, properly chewing food, getting multivitamins, calcium, and vitamin D supports and adding physical exercises are very important. Since patients may feel full with less food, they have no problem adopting a new lifestyle in the postoperative period.

Is there any risk? Every surgery has a complication rate. However, surgeries performed with the laparoscopic method can be considered in the low-intermediate risk group. In gastric sleeve surgery, When we look at the data of the World Series, the complication rate is around 1%; which is quiet low.

Two risks can be counted. Bleeding and leaks. However, if diagnosed in time, it is a treatable process. Although the rate is very low, other complications that can be counted are embolism, respiratory problems and organ injuries.