Single port transumbilical laparoscopic surgery for the treatment of benign renal diseases: initial experience

Objective To evaluate the safety and efficacy of single-port transumbilical 1aDaro-scopic surgery for the treatment of benign renal diseases. Methods From Deeember 2008 to Mav 2009，13 cases of benign renal disease were treated with Tri-Port system single-port transumbilical laparoscopic surgery，including nonfunctional nephrectomy(1 case)，decortication of simple tenal cyst (11 eases)and parapelvic cyst(I case).Tri-Port placed from a transumbilical incision was used in all cases.A flexible grasper and a S-mm 30-degree camera were used in addition to standard laparoscopic equipment or flexible scissors.Renal pedicle was secured and divided by Endoscopic Linear Stapling. Nonfunctioning kidney was extracted through the transumbilical incision without leaving drainage. Results All surgeries were completed successfully，no conversion tO standard laparoscopic approach and no additional trocar added.The operative time of nonfunctional nephrectomy was 85 min and esti- mated blood loss was 50 m1.The operative time of decortication of parapelvic cyst was 1 10 rain and es- timated blood loss was 30 m1.The mean operative time of decortication of simple renal cvst was 35 min.The mean hospital stay after surgery was 2.8 d. Conclusions Single-port laparoscopic surgery is safe and feasible in the treatment of benign renal diseases.It has the advantages of 1ess trauma and more cosmetic benefit than traditional laparoscopic surgery.However，more specific instruments and longer learning curving need to improve the skills during the single-port surgery. Key words: Laparoscopes; Single-port; Umbilicus;  Benign;  Kidney diseases