Multicenter Experience with Nonischemic Multiport Laparoscopic and Laparoendoscopic Single-Site Partial Nephrectomy Utilizing Bipolar Radiofrequency Ablation Coagulator

Abstract EN

Objective.

To investigate feasibility of multiport and laparoendoscopic single-site (LESS) nonischemic laparoscopic partial nephrectomy (NI-LPN) utilizing bipolar radiofrequency coagulator.

Methods.

Multicenter retrospective review of 60 patients (46 multiport/14 LESS) undergoing NI-LPN between 4/2006 and 9/2009.

Multiport and LESS NI-LPN utilized Habib 4X bipolar radiofrequency coagulator to form a hemostatic zone followed by nonischemic tumor excision and renorrhaphy.

Demographics, tumor/perioperative characteristics, and outcomes were analyzed.

Results.

59/60 (98.3%) successfully underwent NI-LPN.

Mean tumor size was 2.35 cm.

Mean operative time was 160.0 minutes.

Mean estimated blood loss was 131.4 mL.

Preoperative/postoperative creatinine (mg/dL) was 1.02/1.07 (P=.471).

All had negative margins.

12 (20%) patients developed complications.

3 (5%) developed urine leaks.

No differences between multiport and LESS-PN were noted as regards demographics, tumor size, outcomes, and complications.

Conclusion.

Initial experience demonstrates that nonischemic multiport and LESS-PN is safe and efficacious, with excellent short-term preservation of renal function.

Long-term data are needed to confirm oncological efficacy.