Department of Clinical Medicine and Surgery;
Surgical Digestive Endoscopy Unit;
University Federico Ⅱ-School of Medicine;
Department of Advanced Biomedical Sciences;
General Surgery Unit;
University Federico Ⅱ-School of Medicine;
Digestive Endoscopy Unit;
Niguarda Hospital;
Bariatric; surgery; Leak; Obesity; Sleevegastrectomy; Endoscopic; stent; Therapy;