Abstract
Introduction
The conservative management of upper tract urothelial carcinoma (UTUC) has historically been offered to patients with imperative indications. The recent International Consultation on Urologic Diseases (ICUD) publication on UTUC stratified treatment allocations based on high- and low-risk groups. This report updates the conservative management of the low-risk group.
Methods
The ICUD for low-risk UTUC working group performed a thorough review of the literature with an assessment of the level of evidence and grade of recommendation for a variety of published studies in this disease space. We update these publications and provide a summary of that original report.
Results
There are no prospective randomized controlled studies to support surgical management guidelines. A risk-stratified approach based on clinical, endoscopic, and biopsy assessment allows selection of patients who could benefit from kidney-preserving procedures with oncological outcomes potentially similar to radical nephroureterectomy with bladder cuff excision, with the added benefit of renal function preservation. These treatments are aided by the development of high-definition flexible digital URS, multi-biopsies with the aid of access sheaths and other tools, and promising developments in the use of adjuvant topical therapy.
Conclusions
Recent developments in imaging, minimally invasive techniques, multimodality approaches, and adjuvant topical regimens and bladder cancer prevention raise the hope for improved risk stratification and may greatly improve the endoscopic treatment for low-risk UTUC.
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Acknowledgments
The senior author would like to recognize support from the Monteleone Family Foundation for Research in Kidney and Bladder Cancer.
Authors’ contributions
Mandalapu, Matin was involved in protocol/project development, data collection or management, data analysis and manuscript writing/editing. Remzi, De Reijke, Margulis, Palou, Kapoor, Yossepowitch, Coleman, Traxer, Anderson, Catto, de la Rosette, O’Brien and Zlotta took part in data collection or management, data analysis and manuscript writing/editing.
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Mandalapu, R.S., Remzi, M., de Reijke, T.M. et al. Update of the ICUD-SIU consultation on upper tract urothelial carcinoma 2016: treatment of low-risk upper tract urothelial carcinoma. World J Urol 35, 355–365 (2017). https://doi.org/10.1007/s00345-016-1859-6
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DOI: https://doi.org/10.1007/s00345-016-1859-6