Pathological Upstaging of Clinical T1 to Pathological T3a Renal Cell Carcinoma: A Multi-institutional Analysis of Short-term Outcomes

Objective To determine the oncological impact of pathological upstaging among patients with clinical T1 (cT1) disease treated by partial nephrectomy or radical nephrectomy. Methods The Canadian Kidney Cancer Information System comprises a prospectively maintained multi-institutional database for pat...

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Bibliographic Details
Published in:Urology (Ridgewood, N.J.) N.J.), 2016-08, Vol.94, p.154-160
Main Authors: Nayak, Jasmir G, Patel, Premal, Saarela, Olli, Liu, Zhihui, Kapoor, Anil, Finelli, Antonio, Tanguay, Simon, Rendon, Ricardo, Moore, Ron, Black, Peter C, Lacombe, Louis, Breau, Rodney H, Kawakami, Jun, Drachenberg, Darrel E
Format: Article
Language:English
Subjects:
Aged
Carcinoma, Renal Cell - pathology
Carcinoma, Renal Cell - surgery
Female
Humans
Kidney Neoplasms - pathology
Kidney Neoplasms - surgery
Male
Middle Aged
Neoplasm Staging
Nephrectomy
Time Factors
Treatment Outcome
Urology
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Summary:Objective To determine the oncological impact of pathological upstaging among patients with clinical T1 (cT1) disease treated by partial nephrectomy or radical nephrectomy. Methods The Canadian Kidney Cancer Information System comprises a prospectively maintained multi-institutional database for patients with renal cell carcinoma. Nonmetastatic, cT1 renal cell carcinoma cases were evaluated. Upstaging was defined as pathological T3a disease. Multivariate Cox regression analysis identified predictors for recurrence (local recurrence and/or metastatic disease) whereas logistic regression identified predictors of pathological upstaging. Kaplan-Meier methods estimated survival. Results Of 1448 eligible cT1 patients, upstaging was observed in 134 (9%). One thousand fifty-eight (73%) were treated by partial nephrectomy. After a median follow-up of 23 months, the 3-year recurrence-free survival was 76% in upstaged patients compared with 93% in those not upstaged ( P  
ISSN:0090-4295
1527-9995
DOI:10.1016/j.urology.2016.03.029