Inclusion Criteria:  Adult patients of both genders with morbid obesity defined as BMI>40 kg/m2 Adult patients of both genders with morbid obesity defined as BMI>35 kg/m2 with at least one associated major comorbidity  Exclusion Criteria:  Patients with secondary obesity due to endocrine and psychologic disorders Patients whit previous bariatric procedures Patients unwilling to comply with postoperative diet regimen and exercise program.