Laparoscopic and open partial nephrectomy: complication comparison using the Clavien system

To compare postoperative complications in patients undergoing laparoscopic and open partial nephrectomy using a standardized complication-reporting system and a standardized tumor-scoring system. We conducted a retrospective analysis of 189 consecutive patients with nephrometry scores available who underwent elective partial nephrectomy for renal masses. Demographic, perioperative, and complication data were recorded. By using the modified Clavien scale, we graded 30- and 90-day complication rates. 107 patients underwent laparoscopic partial nephrectomy and 82 underwent open partial nephrectomy (N=189). Open partial nephrectomy patients had higher nephrometry scores than laparoscopic patients had (7.1±2.4 vs. 5.6±1.8, P