Abstract：Objective： To investigate the feasibility and significance of transumbilical single port laparoscopic surgery for upper urinary tract epithelial tumor. Methods： From January 2018 to November 2019, 12 patients with upper urinary tract urothelial tumor were retrospectively analyzed, including 7 males and 5 females. The average age of thepatients was （64.7 ± 7.2） years （range, 50-78 years）. There were 8 patients with left-sided lesions, including 2 cases of left ureteral tumor and 6 cases of left renal pelvis tumor. There were 4 patients with right lesions, including 2 cases of right ureteral tumor and 2 cases of right renal pelvis tumor. All patients were given transumbilical single port laparoscopic surgery with self-made urethral auxiliary channel. Result： All the operations were successfully performed. One case was added with auxiliary cannula under the right costal arch because of his fat body and serious intestinal adhesion, and the rest did not increase the channel or convert to open surgery. The mean operative time was （182.6 ± 35.2） min （rang, 135-260 min）. The intraoperative blood loss was 25-100 mL （56.4 ± 21.1 mL）. The average hospital stay was （13.4 ± 4.7） days （range, 5-24 days）. One patient had urinary leakage at the anastomosis site of the bladder, and the other patients had no operation related complications. Conclusion： The self-made urethral auxiliary channel combined with transumbilical single port laparoscopy in the operation of upper urinary tract urothelial tumor has the advantages of less trauma, less bleeding, lower surgical difficulty and shorter operation time, which can effectively reduce the risk of tumor planting and is worthy of further promotion.
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