Obesity is one of the most diseases that considers as a global health problem, with a prevalence of >20% among the adult population in Western countries and >30% in the USA.^1,2 The incidence of overweight and obesity has increased and it has been identified as an epidemic associated with an increase in the diseases related to obesity, such as coronary heart disease, type 2 diabetes, hypertension, dyslipidemia, stroke, obstructive sleep apnea, osteoarthritis and polycystic ovary syndrome. Recent a lot of studies on cancer prevention found that increased body weight was associated with an increased death rate for all cancers combined and for cancers at multiple specific sites. Thus, high body mass index (BMI) is a risk factor for higher overall mortality.

Clinicians all over the world have long been aware of the impact of obesity on health, functioning and well-being. In search of effective solutions, morbidly obese patients are increasingly turning to bariatric surgery.

There are a lot of bariatric surgeries to achieve the desirable weight loss but the restrictive procedures are more popular as Gastric banding (GB). It is characterized by minimal invasivity, total possibility of reversibility and good weight loss at long-term. On the other hand, Sleeve gastrectomy (SG), described by Hess and Marceau since 1988 during the procedure of duodenal switch and since 1993 by Johnston in an isolated form, is a less common restrictive operation for obesity, with major invasivity and a longer learning curve than GB.