[POSTOPERATIVE RECURRENCE OF RENAL CELL CARCINOMA AFTER THE LAPAROSCOPIC PARTIAL NEPHRECTOMY].

(Objectives)The usefulness of partial nephrectomy for renal tumors has been highlighted in various guidelines. Since 2006, we have been actively performing laparoscopic partial nephrectomy for renal tumors. We investigated the postoperative recurrence of renal tumors diagnosed as renal cell carcinoma after laparoscopic partial nephrectomy. (Patients and methods)From August 2006 to March 2020, 320 patients who underwent laparoscopic partial nephrectomy at our hospital and were pathologically diagnosed with renal cancer were included. A retrospective statistical study was conducted to analyze the postoperative recurrence. (Results)Postoperative recurrence was observed in 11 patients (3.4%). The median time to recurrence was 12 months (3-26 months), non-distant metastasis was observed in four cases (1.3%), and distant metastasis was observed in seven cases (2.2%). No statistically significant difference was found in the factors related to recurrence, in this study. (Conclusions)In this study, no statistically significant factors were found, but the higher the clinical stage, the higher the recurrence rate.