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Tumor Multifocality is a Significant Risk Factor of Urinary Bladder Recurrence after Nephroureterectomy in Patients with Upper Tract Urothelial Carcinoma: A Single-Institutional Study

1
Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
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Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 407, Taiwan
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Department of Medicine and Nursing, Hungkuang University, Taichung 433, Taiwan
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Department of Applied Chemistry, National Chi Nan University, Nantou 545, Taiwan
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Department of Urology, China Medical University Hospital, Taichung 404, Taiwan
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Department of Urology, Tung’s Taichung MetroHarbor Hospital, Taichung 433, Taiwan
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Department of Urology, Chan Bin Show-Chwan Memorial Hospital, Changhua 505, Taiwan
8
Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan
*
Authors to whom correspondence should be addressed.
Diagnostics 2020, 10(4), 201; https://doi.org/10.3390/diagnostics10040201
Received: 9 March 2020 / Revised: 30 March 2020 / Accepted: 31 March 2020 / Published: 3 April 2020
(This article belongs to the Section Pathology and Molecular Diagnostics)
The purpose of this study was to identify the significant risk factors of urinary bladder recurrence (UBR) after nephroureterectomy (NUx) in patients with upper tract urothelial carcinoma (UTUC). A total of 550 patients diagnosed with UTUC between January 2001 and December 2015 were included in this retrospective study. The median age of our patients was 68 (range 24–93) and the median follow-up time after NUx was 40.3 months (range 8–191). The most important censored point of this study was the first episode of UBR. Of the 550 patients, UBR occurred in 164 patients (29.8%). One hundred and forty-two (86.6%) patients with UBR were identified within two years after NUx for UTUC, with the median time interval between NUx and UBR being 8.4 months (range 3–59.8). Through univariate analysis, the positive surgical margin (p = 0.049) and tumor multifocality (p = 0.024) were both significant prognostic factors for UBR-free survival after NUx in patients with UTUC. However, only tumor multifocality (p = 0.037) remained a significant prognostic factor by multivariate analysis. In conclusion, tumor multifocality is a significant risk factor of UBR after nephroureterectomy in patients with upper tract urothelial carcinoma. View Full-Text
Keywords: urinary bladder; recurrence; nephroureterectomy; upper tract urothelial carcinoma; tumor multifocality urinary bladder; recurrence; nephroureterectomy; upper tract urothelial carcinoma; tumor multifocality
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Chen, C.-S.; Li, J.-R.; Wang, S.-S.; Yang, C.-K.; Cheng, C.-L.; Yang, C.-R.; Ou, Y.-C.; Ho, H.-C.; Lin, C.-Y.; Hung, S.-C.; Chen, C.-C.; Wang, S.-C.; Chiu, K.-Y.; Yang, S.-F. Tumor Multifocality is a Significant Risk Factor of Urinary Bladder Recurrence after Nephroureterectomy in Patients with Upper Tract Urothelial Carcinoma: A Single-Institutional Study. Diagnostics 2020, 10, 201.

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