Abstract
BackgroundThe purpose of this study was to assess the efficacy of Bacillus Calmette-Guerin (BCG) therapy after a second transurethral resection (TUR) in new onset high-grade T1 bladder cancer.MethodsFrom January 2008 to September 2013, 207 patients with new onset high-grade T1 bladder cancer after an initial TUR were treated at our university and at affiliated hospitals. Residual cancer rate, intravesical recurrence-free survival (RFS), and risk factors for intravesical recurrence were analyzed.ResultsAmong a total of 207 patients, 42 patients were treated with BCG therapy following a second TUR (group 1), 23 were treated with second TUR alone (group 2), 72 were treated with BCG alone (group 3), and 70 were treated without a second TUR or BCG. The median patients’ age was 72.0 years, and the median follow-up period was 33.5 months. The second TUR revealed that 34 patients (52 %) had residual cancer. Between groups 1 and 2 and groups 1 and 3, the differences in RFS were statistically significant (p = 0.002 and 0.045, respectively). In addition, BCG therapy was the most significant factor to predict RFS after the second TUR. Among the 31 patients whose pathology of the second TUR was pT0, only 1 of 12 patients (8 %) in group 1 and 11 of 19 patients (58 %) in group 2 had a recurrence.ConclusionsBCG instillation following a second TUR decreases intravesical recurrence, even if the pathology of the second TUR is pT0.
Highlights
The purpose of this study was to assess the efficacy of Bacillus Calmette-Guerin (BCG) therapy after a second transurethral resection (TUR) in new onset high-grade T1 bladder cancer
BCG induction instillations after the second TUR were performed in 42 patients and not in 23 patients
Of the 142 patients who were treated without a second TUR, 72 patients received BCG induction instillations after the initial TUR and 70 patients did not
Summary
The purpose of this study was to assess the efficacy of Bacillus Calmette-Guerin (BCG) therapy after a second transurethral resection (TUR) in new onset high-grade T1 bladder cancer. Among the non-muscle-invasive bladder cancers (NMIBCs), high-grade T1 bladder cancer presents high risk of intravesical recurrence after an initial transurethral resection (TUR). Bacillus Calmette-Guerin (BCG) induction instillation after an initial TUR is effective, reducing the risk of recurrence and progression [1,2,3,4,5,6]. A second TUR, which is defined as a repeated TUR performed. We performed an analysis of 207 patients with new onset high-grade T1 bladder cancer and. Iida et al BMC Urology (2016) 16:8 evaluated the efficacy of BCG induction instillations following a second TUR
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