[Dumping syndrome, a serious complication of Nissen's opération a report of four cases (author's transl)].

A rare complication of Nissen's operation is described on the basis of four cases. Appearing secondarily, its Clinical signs are hyperperistaltic diarrhea, without bacterial infection and a fall or levelling of the weight curve. Its constant features are:--acceleration of intestinal transit and principally of gastric evacuation;--a characteristic modification of glucose absorption and of the curve of the oral glucose tolerance test compared with the normal intravenous glucose tolerance test. Overload of dissacharides in the intestine and hypervagotony could explain the symptomatology, which responds with difficulty and sometimes only partially to a diet excluding rapidly absorbed surgars. This complication supervenes often in babies operated on at less than six months, and is an indication for post ponement of operation.