The time spent in placing the ball varies between 20 and 30 minutes. then the doctor will control that the device is properly seated, allowing a few hours after returning home.The ball must remain between 6 and 8 months in the stomach, time after which they will be removed. During these months you must attend follow-up visits. Withdrawal of the ball will be in the same manner in which it was placed through endoscopy under sedation. It should therefore be used together with a medically supervised diet and alimentary behavior modification program. Who can benefit? The gastric balloon system aims to help lose weight people who are above their ideal weight at least 40 per cent, or 20 to 25 kilos overweight.In addition the gastric balloon system can be particularly useful for patients considered too obese or with excessive risks for aggressive surgical interventions. The use of this system to lose weight before an operation can reduce the risks associated with it. he first to reply. How much weight will I lose? The adequate rate to lose weight in any treatment for obesity should rotate around 1 Kg. a week. Weight loss will depend on strict observation of the diet.There is the possibility that you lose little weight or not lose weight at all while porta the ball, just as there is the possibility of losing weight in a way harmful to your health. I’ll be back to gain weight then? You will have greater possibilities of maintaining weight loss after removal of the balloon if it maintains the habits acquired in your diet and feeding behavior, during use of the balloon. Unpleasant effects that can it have? It is very likely that the presence of the ball within the stomach produces nausea or vomiting for several days after placement. The medical team can prescribe medications to alleviate these potential effects. What risks can you have? As there is the risk of unforeseen, unknown and reactions adverse drugs used and the kind of procedures involved in all medical procedures.The gastric balloon is manufactured with a special, acid-resistant silicone. If the balloon will deflate, coloring that bears on the inside, would cause a change in coloration of the urine. If you suspect that the balloon has deflated, you must notify immediately. There is also the risk of injury on the walls gastric, either by direct contact with the instruments used for the placement of the ball, as by the same or by excessive acid by the stomach wall, that they may require medical or surgical treatments the gastric balloon is a treatment without surgery carried out at the Institute of obesity by the Dr. Adelardo Caballero: Degree in medicine and surgery from the Complutense University of Madrid. 24 registration of honour and extraordinary degree award. Specialist in General Surgery and transplantation of organs. Gregorio Maranon in Madrid made its stage of medical interno-residente in the hospital. He made his training post graduate in Israel, Sweden, Canada and the United States. He is currently medical assistant of General Surgery and the appliance digestive system of the Hospital Universitario of the Princess of Madrid, Universidad Autonoma de Madrid. Appliance digestive system of the Hospital Universitario of the Princess of Madrid, Universidad Autonoma de Madrid.