14 March 2019 The left part of the stomach is removed , resulting in an organ with a much lower capacity. The section of the stomach that is removed is the part with the greatest capacity for distension , adapting itself to the entry of more food. At present, it is also believed the removed section is responsible for the secretion of substances related to appetite stimulation and obesity . Who is sleeve gastrectomy intended for? Sleeve gastrectomy can be an important alternative to the adjustable gastric band. Therefore, it may be a good choice for individuals with concerns about: The presence of a foreign body in the abdominal cavity (such as an adjustable gastric band); The need for nutritional supplements; Long-term effects of malabsorption-inducing procedures and mixed procedures. It is also an option for patients with an adjustable gastric band that needs to be reviewed (for any problem), but who have already lost a lot of weight and do not intend to undergo malabsorption-inducing procedures or mixed procedures. In cases of very severe obesity, sleeve gastrectomy is also often used with the intention of reducing weight to a degree that makes it easier, in a second intervention, to associate a malabsorption-inducing procedure. Why is a sleeve gastrectomy advantageous in combating obesity? When compared with the gastric band, it has the great advantage that, if conversion to a mixed or malabsorption-inducing procedure is necessary, it will be much simpler technically. In addition, other procedures carry a far lower risk following a sleeve gastrectomy than after an adjustable gastric band. This is all the more important given the fact that conversions from one restrictive procedure to another are becoming increasingly frequent , either because of the failure of these procedures (insufficient weight loss) or various complications related to the presence of a foreign body. Advantages of sleeve gastrectomy The advantages of this procedure include: The possibility of laparoscopic and robotic surgery; Technical simplicity; No effect on intestinal anatomy and physiology; Does not require the placing of a foreign body in the abdominal cavity; Easy conversion into a mixed procedure or malabsorption inducer; Short recovery period. Does sleeve gastrectomy work? Available results suggest that weight loss may be slightly more marked and faster than that achieved with the adjustable gastric band. Obesity surgery or bariatric surgery is performed by general surgeons. This article was written with the support of general surgeons from the Hospital da Luz network. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.