Percutaneous resection of upper tract urothelial cell carcinoma: When, how, and is it safe?

doi:10.1016/j.ajur.2016.04.003

Asian Journal of Urology, 2016, 3 (3): 134-141 doi: 10.1016/j.ajur.2016.04.003

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Percutaneous resection of upper tract urothelial cell carcinoma: When, how, and is it safe?

Willem E. Strijbos, Bart van der Heij

Department of Urology, Zuyderland Medical Centre, Heerlen, The Netherlands

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Abstract Introduction: In the management of upper tract urothelial cell carcinoma (UTUC) endoscopic, nephron sparing procedures like ureterorenoscopy (URS) or percutaneous tumour resection (PCTR) still play a very limited role. This could lead to possible unnecessary radical nephroureterectomies (RNU), still being the gold standard treatment. The risk of chronic kidney disease (CKD) later in life is important. In this study we present the results of 24-year experience with PCTR in a single institution.
Methods: We identified 44 patients who underwent PCTR between 1992 and 2015. Radical resection was achieved in 40 patients who were included in this study. Demographic and clinical data, including tumour recurrence, progression to RNU, tumour grade and overall survival (OS) were retrospectively acquired. An outcome analysis was conducted. Results: Median age at diagnosis was 68 years (range 42e94 years). Low grade tumours were found in 37 patients (92.5%) and high grade tumours in three patients (7.5%). Median followup was 53 months during which 20 patients developed upper tract recurrences (50.0%). The longest time to recurrence was 97 months. At follow-up 11 patients (27.5%) underwent an RNU and two patients died from UTUC. RNU could be avoided in 29 patients (72.5%). In this study we found that multifocality is a significant risk factor for recurrence, but not for stage progression to RNU.
Conclusion: PCTR is a surgically and oncologically safe procedure. Renal preservation in patients with UTUC who are eligible for percutaneous resection can be achieved in the majority of patients. Selection criteria for PCTR should be further refined, leading to a wider application of PCTR in the future. Follow-up needs invasive procedures and should be long term.

Key words： Percutaneous tumour resection PCTR UTUC Endoscopic management Upper tract urothelial cell carcinoma Tumour surface area

Received: 31 March 2016 Published: 05 July 2016

Corresponding Authors: Willem E. Strijbos E-mail: W.Strijbos@Zuyderland.nl

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Willem E. Strijbos,Bart van der Heij. Percutaneous resection of upper tract urothelial cell carcinoma: When, how, and is it safe?[J]. Asian Journal of Urology, 2016, 3(3): 134-141.

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http://www.ajurology.com/EN/10.1016/j.ajur.2016.04.003 OR http://www.ajurology.com/EN/Y2016/V3/I3/134

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