The two most common operations are adjustable gastric banding and sleeve gastrectomy. With both procedures, the size of the area in stomach where food collects is reduced. The adjustable gastric band is less invasive than sleeve gastrectomy although both are done laparoscopically. The band is adjustable; the sleeve is not, also the band is reversible; the sleeve gastrectomy is not.
Details of all available procedures are discussed in the What we do section.