When the degree of excess weight reaches the level of morbid obesity (BMI of greater than 40 kg/m2
), other endoscopic or nonsurgical interventions might not be able to achieve effective weight loss in the vast majority of patients, greater than 95%. Surgical weight loss is currently the only effective and long-lasting method of weight control in patients with morbid obesity, with an 85% success rate for laparoscopic gastric bypass operations. In the setting of morbid obesity, other less effective operations, including laparoscopic gastric banding
and sleeve gastrectomy, are not recommended.