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KMID : 1011820200610040397
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Investigative and Clinical Urology
2020 Volume.61 No. 4 p.397 ~ p.404
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Preintervention risk stratification of renal pelvic cancer and ureteral cancer should differ
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Yang Tao
Zhang Nan
Yang Bo
He Dalin
Fan Junjie
Fan Jinhai
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Abstract
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Purpose: To identify different preintervention prognostic factors between renal pelvic cancer (RPc) and ureteral cancer (Uc) and to develop different preintervention risk stratifications for each cancer type.
Materials and Methods: A total of 1,768 patients with organ-confined upper urinary tract urothelial carcinoma (1,067 patients with RPc and 701 with Uc) who presented between 2004 and 2015 were selected from the Surveillance, Epidemiology, and End Results database. Clinicopathologic characteristics were compared between RPc and Uc. Univariable and multivariable Cox regression models were used to examine the prognostic ability of the clinicopathologic characteristics with respect to oncology outcomes.
Results: Age greater than 75 years was significantly associated with cancer-specific survival (CSS) in RPc patients but not in Uc patients. Tumor size had a significant influence on CSS in Uc patients but not in RPc patients; in contrast, age had an influence in RPc but not in Uc. Unlike CSS, age was significantly associated with overall survival (OS) in both RPc and Uc. Tumor size had an effect on OS in Uc patients but not in RPc patients.
Conclusions: The preintervention prognostic factors differed between RPc and Uc. Thus, we should develop separate preintervention risk stratification standards for RPc and Uc. Using these specific preintervention risk stratifications, we may be able to select the most appropriate surgical options for patients in the clinic.
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KEYWORD
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Prognosis, Risk factors, Ureteral neoplasms
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