Cemtio, The Spanish Medical Research Group on Interventionist Obesity Treatments
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INTERVENTION OBESITY TREATMENTS
Frequently asked questions regarding intervention obesity treatments 
WHAT ARE THE ESSENTIAL REQUIREMENTS FOR CONSIDERING SURGICAL TREATMENT?
Those who are morbidly obese, aged between 18 and 65, who have repeatedly failed well-planned medical, dietary and psychological treatments may qualify for surgical treatment. In addition, they should prove their capacity to lose weight significantly (even if they gain it again), and have the right psychological profile for such an operation.

However, use of the Intragastric Balloon does not have such strict requirements and can be considered an additional, reversible tool.
WHAT ARE THE MAIN SURGICAL AND INTERVENTION OBESITY TECHNIQUES?
There are two types of surgical techniques, restrictive and malabsorptive. The aim of restrictive techniques is to reduce gastric capacity, either by placing a balloon to take up space or by creating a gastric pouch with a small capacity. Malabsorptive techniques aim to create an intestinal bypass that will reduce food absorption. This procedure varies depending on the patient's characteristics and opinion, as well as his/her type of obesity.
WHAT DO I NEED TO DO IN ORDER TO HAVE AN OPERATION?
First we must confirm the patient is morbidly obese by calculating their Body Mass Index. A medical history must be carried out in order to assess the patient's previous health record and current state. Once this study is completed, the operation's benefits and risks are discussed with the patient before deciding on the date and technique to be used.