Single-Incision Transureteral Laparoscopic Nephrectomy: A Proof of Concept

Abstract Purpose: Single-umbilical incision laparoscopic nephrectomy has been recently advocated as an alternative to pure natural orifice transluminal endoscopic surgery. We present a novel, hybrid technique for laparoscopic nephrectomy that combines single-incision laparoscopy with natural orifice transluminal endoscopic surgery principles consisting of using the ureteral stump as a natural orifice. Materials and Methods: Six renal units were operated in a nonsurvival pig study by combining a single umbilical incision with a novel natural orifice, the divided ureter. A transurethral 16F Amplatz sleeve inserted in the ureter under cystoscopic guidance became a natural orifice port after transection of the ureter. Regular laparoscopic instruments and scopes were used through two adjacent single-incision umbilical ports. The camera was placed in one of the umbilical ports and two operating instruments were introduced through the additional umbilical port and the “natural orifice port,” respectively. Result...