Summary

Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma

Published: November 22, 2019
doi:

Summary

Here, we present a protocol to increase the surgical field of view and reduce the difficulty of total transperitoneal laparoscopic nephroureterectomy surgery by precutting the umbilical ligament before treating the terminal ureter.

Abstract

Upper tract urothelial carcinoma (UTUC) accounts for 5%–10% of all urothelial tumors. Radical nephroureterectomy is the standard treatment procedure. At present, different choices still exist for treating the ureteral end during laparoscopic ureteral bladder sleeve resection. Our center has adopted a new method for treating the ureteral end. This new method can increase the operating space and reduce the difficulty of the surgery compared with current methods.

Introduction

Radical nephroureterectomy is a standard procedure for treating upper tract urothelial carcinoma (UTUC)1. Traditional open surgery requires two large incisions in the lower abdomen, which is associated with a large amount of trauma and many complications2. With the rapid development of minimally invasive techniques in urology, laparoscopic surgery has been gradually applied in many research studies. Laparoscopic surgery is identical to open surgery in treating the tumors, so the traditional surgical methods have gradually been replaced by laparoscopic surgery3.

In laparoscopic surgery, treatment of the terminal ureter has been an area of focus and a known difficulty of the surgery. At present, different choices exist for treating the ureteral end in laparoscopic nephroureterectomy. However, reductions in the difficulty of the surgery and the amount of trauma has not been possible4,5.

After years of exploration, our center has improved and adopted a new method for the treatment of the terminal ureter: precutting the medial umbilical fold not only increases the operating space but also reduces the difficulty of the surgery and minimizes extra trauma to the patient.

Protocol

All methods described here have been approved by the ethics committee of the Beijing Hospital. Indications and contraindications for surgery are according to the European Association of Urology guidelines for upper urinary tract urothelial cell carcinoma. 1. Instruments for Operation Ensure the availability of the laparoscopic imaging system, images of the pneumoperitoneum, and ultrasonic scalpel. 2. Preparation for Operation Prepare t…

Representative Results

In total, 87 patients underwent surgery without difficulties, and there were no open surgeries. The average age of the patients was 67.25 ± 9.90 years. Within this group, there were 47 cases of renal pelvic cancer, 10 cases of pelvic cancer with ureteral cancer, and 30 cases of ureteral cancer (10 cases of upper ureteral cancer, 9 cases of middle ureteral cancer, and 11 cases of lower ureteral cancer). In total, 49 cancers were on the left side and 38 cancers were on the right side. The average tumor diameter was 3….

Discussion

A traditional open renal ureter resection and bladder cuff-like resection mostly involve upper and lower incisions, which require changing positions and disinfecting the surgical towels twice. The operation time is long, and the amount of trauma is large. Laparoscopic renal ureter and bladder sleeve resection have been gradually adopted by urologists since minimally invasive surgery techniques have been widely used in urology8. The methods for laparoscopic nephroureterectomy and radical resection …

Offenlegungen

The authors have nothing to disclose.

Acknowledgements

This study was sponsored by CAMS Innovation Fund for Medical Sciences,No. 2018-I2M-1-002.

Materials

Laparoscopic imaging system STORZ
Pneumoperitoneum STORZ
Ultrasonic scalpel Johnson
Vascular closure clip Hem-o-Lock

Referenzen

  1. Roupret, M., et al. European guidelines for the diagnosis and management of upper urinary tract urothelial cell carcinomas: 2011 update. European Urology. 59 (4), 584-594 (2011).
  2. Ristau, B. T., Tomaszewski, J. J., Ost, M. C. Upper Tract Urothelial Carcinoma: Current Treatment and Outcomes. Urology. 79 (4), 749-756 (2012).
  3. Ni, S., et al. Laparoscopic Versus Open Nephroureterectomy for the Treatment of Upper Urinary Tract Urothelial Carcinoma: A Systematic Review and Cumulative Analysis of Comparative Studies. European Urology. 61 (6), 1142-1153 (2012).
  4. Ghazi, A., Shefler, A., Gruell, M., Zimmermann, R., Janetschek, G. A Novel Approach for a Complete Laparoscopic Nephroureterectomy with Bladder Cuff Excision. Journal of Endourology. 24 (3), 415 (2010).
  5. Hiroshi, K., et al. Comparison of Laparoscopic, Hand-Assisted, and Open Surgical Nephroureterectomy. Journal of the Society of Laparoendoscopic Surgeons. 18 (2), 288-293 (2014).
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  7. Seisen, T., et al. A Systematic Review and Meta-analysis of Clinicopathologic Factors Linked to Intravesical Recurrence After Radical Nephroureterectomy to Treat Upper Tract Urothelial Carcinoma. Journal of Urology. 67 (6), 1122-1133 (2015).
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  11. Li, C. C., et al. Significant Predictive Factors for Prognosis of Primary Upper Urinary Tract Cancer after Radical Nephroureterectomy in Taiwanese Patients. European Urology. 54 (5), 1127-1135 (2008).
  12. Cormio, L., et al. Simultaneous radical nephroureterectomy and transurethral distal ureter balloon occlusion and detachment. World Journal of Surgical Oncology. 12 (1), 345 (2014).
  13. Waldert, M., Remzi, M., Klingler, H. C., Mueller, L., Marberger, M. The oncological results of laparoscopic nephroureterectomy for upper urinary tract transitional cell cancer are equal to those of open nephroureterectomy. Bju International. 103 (1), 66-70 (2010).
  14. Liu, P., et al. A Novel and Simple Modification for Management of Distal Ureter During Laparoscopic Nephroureterectomy Without Patient Repositioning: A Bulldog Clamp Technique and Description of Modified Port Placement. Journal of Endourology. 30 (2), 195-200 (2016).
  15. Xylinas, E., et al. Impact of distal ureter management on oncologic outcomes following radical nephroureterectomy for upper tract urothelial carcinoma. European Urology. 65 (1), 210-217 (2014).
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Fu, C., Zhang, Y., Wang, X., Zhu, S., Hou, H., Liu, S., Pang, C., Song, X., Chen, J., Wang, J., Liu, M. Technical Modification of the Terminal Ureter During Total Transperitoneal Laparoscopic Nephroureterectomy for Upper Urinary Tract Urothelial Carcinoma. J. Vis. Exp. (153), e60662, doi:10.3791/60662 (2019).

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