Abstract
Purpose
The goals of transurethral resection of a bladder tumor (TUR) are to completely resect the lesions and to make a correct diagnosis to adequately stage and treat the patient. Persistent disease after TUR is not uncommon and is why re-TUR is recommended in T1G3 patients. When there is T1 tumor in the re-TUR specimen, very high risks of progression (82%) have been reported. We analyze the risks of recurrence, progression to muscle-invasive disease and cancer-specific mortality (CSM) according to tumor stage at re-TUR in T1G3 patients treated with BCG.
Methods
In our retrospective cohort of 2451 T1G3 patients, 934 patients (38.1%) underwent re-TUR. 667 patients had residual disease (71.4%): Ta in 378 (40.5%), T1 in 289 (30.9%) patients. Times to recurrence, progression and CSM in the three groups were estimated using cumulative incidence functions and compared using the Cox regression model.
Results
During a median follow-up of 5.2 years, 512 patients recurred. The recurrence rate was significantly higher in patients with a T1 at re-TUR (P < 0.001). Progression rates differed according to the pathology at re-TUR, 25.3% in T1, 14.6% in Ta and 14.2% in case of no residual tumor (P < 0.001). Similar trends were seen in both patients with and without muscle in the original TUR specimen.
Conclusions
Patients with T1G3 tumors and no residual disease or Ta at re-TUR have better recurrence, progression and CSM rates than previously reported, with a CSM rate of 13.1 and a 25.3% progression rate in re-TUR T1 disease.
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The authors declare that the development of the manuscript was not supported by an honorarium, a grant, or any other sources of support, including sponsorship or any material sources of support.
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Study concept and design: JP, FP, PG. Acquisition of data: FP, SJ, VS, SL, SS, BR, AW, AG, RC, AB, MB, VS, PUM, JI, NM, JB, RM, TC, EC, PA, JV, RB, GD, SFS, EX, RJK. Analysis and interpretation of data: RS, PJ, FP. Drafting of the manuscript: FP. Critical revision of the manuscript for important intellectual content: RS, SJ, VS, SL, SS, BR, AW, AG, RC, AB, MB, VS, PUM, JI, NM, JB, RM, TC, EC, PA, JV, RB, GD, SFS, EX, RJK, JP. Statistical analysis: RS. Administrative, technical, or material support: FP. Supervision: JP.
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Palou, J., Pisano, F., Sylvester, R. et al. Recurrence, progression and cancer-specific mortality according to stage at re-TUR in T1G3 bladder cancer patients treated with BCG: not as bad as previously thought. World J Urol 36, 1621–1627 (2018). https://doi.org/10.1007/s00345-018-2299-2
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DOI: https://doi.org/10.1007/s00345-018-2299-2