Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical Cystectomy

Objective:To investigate the impact of variant histology (VH) of urothelial carcinoma (UC) of the bladder on oncologic outcomes after radical cystectomy (RC).Materials and Methods:We identified 125 patients with cT2-T4N0M0 UC who underwent RC without perioperative systemic therapy between 2014 and 2...

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Main Authors: Berk Hazır, Hakan Bahadır Haberal, Kadir Emre Baltacı, Parviz Shahsuvarli, Bülent Akdoğan, Cenk Yücel Bilen, Mustafa Sertaç Yazıcı
Format: Article
Language:English
Published: Galenos Yayinevi 2021-12-01
Series:Journal of Urological Surgery
Subjects:
Online Access: http://jurolsurgery.org/archives/archive-detail/article-preview/variant-histology-the-mpact-on-oncological-outcome/50466
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author Berk Hazır
Hakan Bahadır Haberal
Kadir Emre Baltacı
Parviz Shahsuvarli
Bülent Akdoğan
Cenk Yücel Bilen
Mustafa Sertaç Yazıcı
author_facet Berk Hazır
Hakan Bahadır Haberal
Kadir Emre Baltacı
Parviz Shahsuvarli
Bülent Akdoğan
Cenk Yücel Bilen
Mustafa Sertaç Yazıcı
author_sort Berk Hazır
collection DOAJ
description Objective:To investigate the impact of variant histology (VH) of urothelial carcinoma (UC) of the bladder on oncologic outcomes after radical cystectomy (RC).Materials and Methods:We identified 125 patients with cT2-T4N0M0 UC who underwent RC without perioperative systemic therapy between 2014 and 2019 at a single tertiary care referral center. The Mann-Whitney U test and chi-square test were used to compare the statistically significant differences in medians and proportions, respectively. The Kaplan-Meier method and Cox regression analyses tested the effect of different VH on cancer-specific survival (CSS) and overall survival (OS).Results:Of 125 patients, 70 (56%) had pure UC, whereas 55 (44%) had VH. The mean patient age and the median follow-up were 63.6±9.7 years and 12.5 (3-72) months. The female to male ratio was 13/112. The presence of lymphovascular invasion, locally advanced stage (≥pT3), and recurrence status were significantly higher in patients with VH than those with pure UC. In all patients, the presence of VH was not significantly associated with the presence of lymph node (LN) metastasis. In the multivariable Cox regression analyses, the type of UC [hazard ratio (HR) 1.80, 95% confidence interval (CI) 1.00-3.24, p=0.050] and age (HR=1.050, 95% CI 1.016-1.086, p=0.004) was associated with the OS, whereas the LN metastases was associated the CSS (HR=2.962, 95% CI 1.456-6.027, p=0.003) and OS (HR=3.211, 95% CI 1.778-5.799, p<0.001).Conclusion:Our study demonstrated that VH in bladder cancer was associated with unfavorable clinicopathological features and a poorer OS prognosis. However, VH is not independently significant with the CSS. In addition, this study confirms that the LN metastasis represents a robust and independent predictor of inferior CSS and OS.
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spelling doaj.art-32db206d294a484aa2594b4240a1bb7d2023-02-15T16:18:43ZengGalenos YayineviJournal of Urological Surgery2148-95802021-12-018424324710.4274/jus.galenos.2021.2021.001513049054Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical CystectomyBerk Hazır0Hakan Bahadır Haberal1Kadir Emre Baltacı2Parviz Shahsuvarli3Bülent Akdoğan4Cenk Yücel Bilen5Mustafa Sertaç Yazıcı6 Hacettepe University Faculty of Medicine, Department of Urology, Ankara, Turkiye Hacettepe University Faculty of Medicine, Department of Urology, Ankara, Turkiye Hacettepe University Faculty of Medicine, Department of Urology, Ankara, Turkiye Hacettepe University Faculty of Medicine, Department of Urology, Ankara, Turkiye Hacettepe University Faculty of Medicine, Department of Urology, Ankara, Turkiye Hacettepe University Faculty of Medicine, Department of Urology, Ankara, Turkiye Hacettepe University Faculty of Medicine, Department of Urology, Ankara, Turkiye Objective:To investigate the impact of variant histology (VH) of urothelial carcinoma (UC) of the bladder on oncologic outcomes after radical cystectomy (RC).Materials and Methods:We identified 125 patients with cT2-T4N0M0 UC who underwent RC without perioperative systemic therapy between 2014 and 2019 at a single tertiary care referral center. The Mann-Whitney U test and chi-square test were used to compare the statistically significant differences in medians and proportions, respectively. The Kaplan-Meier method and Cox regression analyses tested the effect of different VH on cancer-specific survival (CSS) and overall survival (OS).Results:Of 125 patients, 70 (56%) had pure UC, whereas 55 (44%) had VH. The mean patient age and the median follow-up were 63.6±9.7 years and 12.5 (3-72) months. The female to male ratio was 13/112. The presence of lymphovascular invasion, locally advanced stage (≥pT3), and recurrence status were significantly higher in patients with VH than those with pure UC. In all patients, the presence of VH was not significantly associated with the presence of lymph node (LN) metastasis. In the multivariable Cox regression analyses, the type of UC [hazard ratio (HR) 1.80, 95% confidence interval (CI) 1.00-3.24, p=0.050] and age (HR=1.050, 95% CI 1.016-1.086, p=0.004) was associated with the OS, whereas the LN metastases was associated the CSS (HR=2.962, 95% CI 1.456-6.027, p=0.003) and OS (HR=3.211, 95% CI 1.778-5.799, p<0.001).Conclusion:Our study demonstrated that VH in bladder cancer was associated with unfavorable clinicopathological features and a poorer OS prognosis. However, VH is not independently significant with the CSS. In addition, this study confirms that the LN metastasis represents a robust and independent predictor of inferior CSS and OS. http://jurolsurgery.org/archives/archive-detail/article-preview/variant-histology-the-mpact-on-oncological-outcome/50466 variant histologysurvivalurothelial carcinoma
spellingShingle Berk Hazır
Hakan Bahadır Haberal
Kadir Emre Baltacı
Parviz Shahsuvarli
Bülent Akdoğan
Cenk Yücel Bilen
Mustafa Sertaç Yazıcı
Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical Cystectomy
Journal of Urological Surgery
variant histology
survival
urothelial carcinoma
title Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical Cystectomy
title_full Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical Cystectomy
title_fullStr Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical Cystectomy
title_full_unstemmed Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical Cystectomy
title_short Variant Histology: The Impact on Oncological Outcomes of Patients with Urothelial Carcinoma of The Bladder Treated with Radical Cystectomy
title_sort variant histology the impact on oncological outcomes of patients with urothelial carcinoma of the bladder treated with radical cystectomy
topic variant histology
survival
urothelial carcinoma
url http://jurolsurgery.org/archives/archive-detail/article-preview/variant-histology-the-mpact-on-oncological-outcome/50466
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