Laparoscopic Partial Nephrectomy: A Single-center Evolving Experience

Objectives To review our laparoscopic partial nephrectomy (LPN) experience, examine the evolution of technique, and compare the outcomes between the early and recent experience. The indications and surgical technique of LPN continuously evolve. Methods Data for 184 patients who underwent LPN for a tumor between October 2002 and August 2008 was retrieved from a prospective database. Surgical and functional outcomes for the entire cohort were analyzed and the first 50 (group 1) and most recent 50 (group 2) cases were compared. Results The groups were similar in terms of baseline renal function, body mass index, and comorbidities. The mean tumor size and the proportion of central tumors in groups 1 and 2 were 2.4 vs 3 cm and 12% vs 52%, respectively ( P 4 cm had more complications ( P = .042). In group 2 the estimated blood loss and hospital stay decreased (243 vs 140 mL, P = .01, 1.4 vs 2.5 days, P