Obesity, after smoking, has become a second preventable epidemic lethal disease in the world. As a cause of many co-morbidities, psychosocial problems in many patients and huge financial load for the treatment are main concerns in obesity. Medical management is usually not enough to loose weight in obesity. Surgery has become main part of the management of morbid obesity. During the last 60 years some surgical techniques are being used for this purpose.
Roux-en-Y gastric bypass, sleeve gastrectomy, adjustable gastric banding and biliopancreatic diversion are the most commonly performed up-to-date surgical procecures. All of these could be performed laparoscopically. With the surgery; less food intake and early satiety due to gastric volume restriction and malabsorbtion due to bypass cause excess weight loss.