Retroperitoneal Laparoscopic Ablation of Peripelvic Renal Cyst

Chun, Sang Jun; So, Young Seok; Kim, Chul Sung

Abstract

PURPOSE: We report an initial experience with a retroperitoneal laparoscopic ablation of a peripelvic renal cyst.
MATERIALS AND METHODS
Five patients (2 males, 3 females), with a mean age of 47 years (22 to 65) underwent a laparoscopic unroofing of a symptomatic peripelvic cyst. All patients complained of flank pain and an obstruction was observed in 3 patients. A laparoscopic ablation was performed retroperitoneally in all patients. Clinical parameters evaluated included the operative time, hospital stay, analgesic use, oral intake and complication rate.
RESULTS
The mean operative time was 179 minutes (160-210 minutes). The mean postoperative hospital stay was 2.8 days (2-3 days). The mean analgesic requirement was 44mg of Piroxicam. Oral intake was started on postoperative day 1.4 (1-2 days). Complications included 1 case of subcutaneous emphysema and 1 case of peritoneal tearing, which were managed conservatively. The mean follow-up was 9.2 months (3-18 months) with no evidence of recurrence.
CONCLUSIONS
A retroperitoneal laparoscopic ablation of a peripelvic renal cyst is technically feasible and effective alternative to an open cyst unroofing. However, it should be performed by an experienced urologic laparoscopist because of the location and association of these cysts with vessels of the renal hilum and collecting system.