The secondary aims will be to measure the diameter of the gastrojejunal anastomosis during three endoscopic sessions and in a final control examination eight weeks after the third session; to determine whether the patient loses weight or not by the final control objective after three sessions of endoscopic fulguration with argon; to analyze if the method employed is able to reduce body weight to the minimum weight achieved after bariatric surgery;and to investigate whether there is a correlation between the percentage reduction in anastomotic diameter and the percentage loss of regained weight.