[1] Univ Campania Luigi Vanvitelli Naples, Div Gen Mininvas & Obes Surg, Via Luigi Pansini 5, I-80131 Naples, Italy
[2] Univ Campania Luigi Vanvitelli Naples, Div Gen Mininvas & Obes Surg, Coloproctol, Via Luigi Pansini 5, I-80131 Naples, Italy
[3] Univ Campania Luigi Vanvitelli Naples, Div Gen Mininvas & Obes Surg, Pelvi Perineal Rehabil, Via Luigi Pansini 5, I-80131 Naples, Italy
[4] Univ Campania Luigi Vanvitelli, Sch Med, Dept Cardiothorac Sci, Naples, Italy
[5] S Maria dei Battuti Hosp Conegliano, Dept Gen Surg, Colorectal & Pelv Floor Dis Ctr, Conegliano, Italy
[6] Reg Hosp, Dept Surg 1, Pelv Floor Unit, Treviso, Italy