The two techniques most commonly used today are bypass and the sleeve. Argon plasma For those who performed bariatric surgery, made the Bypass / Fobi-Capella technique and returned to gain weight due to the enlargement of the anastomosis (connection between the stomach and intestine), comes one more alternative to ease the loss of regained weight. It is a treatment which they are implemented, on average three argon plasma application sessions (kind of laser beam) at intervals of one month and a half to two months between each. The objective is to reduce the diameter of the anastomosis (the region through which the food exits the stomach into the intestine), causing the patient to have longer satiety, inducing them to eat less. With this, since there is a nutritional education, weight loss occurs again.