J Arquillière1, O Glehen2, G Passot3. 1. Department of General Surgery, Centre Hospitalier Lyon Sud, Pierre Bénite, Hospices Civils de Lyon, France. 2. Department of General Surgery, Centre Hospitalier Lyon Sud, Pierre Bénite, Hospices Civils de Lyon, France; EMR UCBL/HCL 3738, Faculté de Médecine Lyon- Sud, Université Lyon 1, Oullins, France. 3. Department of General Surgery, Centre Hospitalier Lyon Sud, Pierre Bénite, Hospices Civils de Lyon, France; EMR UCBL/HCL 3738, Faculté de Médecine Lyon- Sud, Université Lyon 1, Oullins, France. Electronic address: guillaume.passot@chu-lyon.fr.