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Applicability of the EORTC risk tables to predict outcomes in non-muscle-invasive bladder cancer in Turkish patients.

Turk J Urol; 43(1): 48-54, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28270951

OBJECTIVE:

To evaluate the consistency of the results of patients who were treated for non-muscle-invasive bladder cancer (NMIBC) in our clinic with the European Organization for Research and Treatment of Cancer (EORTC) risk table.

MATERIAL AND METHODS:

Data were retrospectively analyzed from 452 patients who had undergone transurethral resection of bladder tumor (TUR-BT) between the years 2002, and 2010 for primary or recurrent NMIBC. Our study had a retrospective design but based on prospective cohort study. Patients were staged according to the 2002 Tumor Node Metastasis (TNM) classification and the 1973 World Health Organization grading system. Recurrence was defined as non-muscle-invasive or muscle-invasive and progression as muscle-invasive tumor determined based on following cystoscopy and TUR-BT results, and confirmed by histopathologic analysis. Patients in the current study were classified into four groups according to the EORTC risk tables. Time to first recurrence and progression was determined for each risk group.

RESULTS:

Of the 452 patients, 348 were enrolled in this study. The overall mean follow-up period was 55.25 months of all patients. Of 348 patients, 130 (37.4%) and 258 patients (74.1%) had recurrence after treatment at the 1 and 5 year follow-up period, respectively. While 35 (10.1%) and 99 patients (28.4%) progressed to muscle-invasive cancer at the 1 and 5 year follow-up period, respectively. In the multivariate analysis, grade, number, size of the tumor size, and concomitant carcinoma in situ were found to be statistically significant for disease progression and recurrence.

CONCLUSION:

When EORTC risk tables were comparatively evaluated in our patient population, we can say that EORTC tables predict nearly accurately the clinical course of patients with NMIBC.