Operation by laparoscopy on a patient suffering from morbid obesity, surgical operation during which the doctor Nicolas Christou of the Royal Victoria Hospital of Montreal practises a reduction of the bowel, which goes from 10 to 3 metres, then a reduction of the stomach, the volume of which is reduced to 1,5 by 7 centimeters. The surgeon clamps the intestine, then waits for a few seconds, after which he removes the instrument, leaving the split intestine. Keywords: SURGERY,MONTREAL (CITY),OBESITY