This study aims to compare the strength of the classical Clavien-Dindo classification system (CDC), which is a Likert scale analysis versus the comprehensive complication index (CCI), a new quantitative evaluation system, in patients undergoing laparoscopic partial nephrectomy (LPN).

Prospectively collected data of sixty-two patients undergoing LPN with postoperative complications from November 2009 to August 2020 were evaluated retrospectively. Postoperative complications were classified according to the CDCs and calculated using the CCI calculator (https://www.assessurgery.com) quantitatively. Major complications were determined as ≥ grade 3 complications according to the CDC. The complexity of the renal mass was defined according to the RENAL nephrometry score. The cut-off value for CCI was analyzed by the ROC analysis technique. The significance level was taken as p<0.05.

Inclusion Criteria:

• patients with complete data
• patients with consent
• Patients > 18 year-old
• The surgeries performed by the surgeon EO

Exclusion Criteria:

• Missing data
• patients without consent
• patients who underwent open or retroperitoneoscopic laparoscopic partial nephrectomy

A retrospective analysis was carried out on 517 surgical procedures in 503 patients who underwent LPN between November 2009 and August 2020 in a tertiary university hospital. Sixty-two patients with postoperative complications were included in the study.