Publications by authors named "Yukun Cai"

2 Publications

  • Page 1 of 1

Clinical characteristics and surgical treatment of ureteral endometriosis: our experience with 40 cases.

BMC Womens Health 2021 05 17;21(1):206. Epub 2021 May 17.

Department of Urology, Peking University First Hospital, No. 8 Xishiku St, Xicheng District, Beijing, 100034, China.

Background: To present the experience with the surgical management of ureteral endometriosis (UE) in our single center.

Methods: To present the experience with the surgical management of ureteral endometriosis (UE) in our single center. A retrospective analysis of 40 patients with UE who presented with intraoperative surgical findings of endometriosis involving the ureter and pathology-proven UE was performed.

Results: Forty patients (median age, 42.5 years) with histological evidence of UE were included. Six (15%) patients had a history of endometriosis. Twenty-one (52%) patients had urological symptoms, and 19 (48%) patients were asymptomatic. All patients had hydronephrosis. The mean glomerular filtration rate (GFR) of the ipsilateral kidney was significantly worse than that of the contralateral kidney (23.4 vs 54.9 ml/min; P < 0.001). Twelve (30%) patients were treated with ureteroureterostomy (11 open approaches and 1 robotic approach). Twenty-two (55%) patients underwent ureteroneocystostomy (17 open approaches, 4 laparoscopic approaches and 1 robotic approach). Five patients underwent nephroureterectomy. One patient refused aggressive surgery and received ureteroscopic biopsy and ureteral stent placement. Thirteen (33%) patients required gynecological operations. Three (8%) patients in the open group suffered from major surgical complications. Nine (24%) patients received postoperative endocrine therapy. Twenty-eight (70%) patients were followed up (median follow-up time, 71 months). Twenty-four patients received kidney-sparing surgeries. The success rate for these 24 patients was 21/24 (87.5%). The success rates of ureteroneocystostomy and ureteroureterostomy were 15/16 (93.8%) and 5/7 (71.4%), respectively.

Conclusions: Although UE is rare, we should remain vigilant for the disease among female patients with silent hydronephrosis. Typically, a multidisciplinary surgical team is necessary. For patients with severe UE, segmental ureteral resection with ureteroureterostomy (UU) or ureteroneocystostomy may be a preferred choice.
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http://dx.doi.org/10.1186/s12905-021-01349-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8130255PMC
May 2021

Modified Laparoscopic Partial Ureterectomy for Adult Ureteral Fibroepithelial Polyp: Technique and Initial Experience.

Urol Int 2019 16;102(1):13-19. Epub 2018 Nov 16.

Department of Urology, Peking University First Hospital. Institute of Urology, Peking University. National Urological Cancer Center, Beijing, China.

Objectives: To present our modified laparoscopic partial ureterectomy technique for adult ureteral fibroepithelial polyp (FEP) and initial experience.

Methods: Between August 2009 and October 2017, 22 patients with ureteral FEP underwent modified laparoscopic partial ureterectomy by an experienced surgeon. In our method, a stay suture passing through the upper ureter was fixed to the abdominal wall to keep the ureter from twisting. The ureter was not completely dismembered until the first stitch, which was placed between the lowest points of the upper ureter and lower ureter end faces, was finished. Besides, we used a 3-step method to locate the polyp. Surgical success was defined as improved hydronephrosis and alleviated symptoms.

Results: The mean operative time was 152.18 min. The mean estimated blood loss was 22.73 mL. One patient complained of urinary tract infection postoperatively. The mean times to remove the drainage tube and catheter were 2.64 and 3.73 days respectively. The double-J tube was removed at 1-3 months after surgery. At a mean follow-up of 47.04 months, no patient experienced disease recurrence, and the operative success rate was 100%.

Conclusions: Modified laparoscopic partial ureterectomy, with a high success rate, could be considered a safe and efficient treatment option for ureteral FEP.
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http://dx.doi.org/10.1159/000494804DOI Listing
March 2019
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