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Predictors of oncological outcomes in T1G3 patients treated with BCG who undergo radical cystectomy

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Abstract

Purpose

To evaluate the oncological impact of postponing radical cystectomy (RC) to allow further conservative therapies prior to progression in a large multicentre retrospective cohort of T1-HG/G3 patients initially treated with BCG.

Methods

According to the time of RC, the population was divided into 3 groups: patients who did not progress to muscle-invasive disease, patients who progressed before radical cystectomy and patients who experienced progression at the time of radical cystectomy. Clinical and pathological outcomes were compared across the three groups.

Results

Of 2451 patients, 509 (20.8%) underwent RC. Patients with tumors > 3 cm or with CIS had earlier cystectomies (HR = 1.79, p = 0.001 and HR = 1.53, p = 0.02, respectively). Patients with tumors > 3 cm, multiple tumors or CIS had earlier T3/T4 or N + cystectomies. In patients who progressed, the timing of cystectomy did not affect the risk of T3/T4 or N + disease at RC. Patients with T3/T4 or N + disease at RC had a shorter disease-specific survival (HR = 4.38, p < 0.001), as did patients with CIS at cystectomy (HR = 2.39, p < 0.001). Patients who progressed prior to cystectomy had a shorter disease-specific survival than patients for whom progression was only detected at cystectomy (HR = 0.58, p = 0.024)

Conclusions

Patients treated with RC before experiencing progression to muscle-invasive disease harbor better oncological and survival outcomes compared to those who progressed before RC and to those upstaged at surgery. Tumor size and concomitant CIS at diagnosis are the main predictors of surgical treatment while tumor size, CIS and tumor multiplicity are associated with extravesical disease at surgery.

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Acknowledgements

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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Authors and Affiliations

Authors

Contributions

Study concept and design: PG, RS; Acquisition of data: FP, SJ, VS, JP, 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, FS, PF; Drafting of the manuscript: PF, FS; 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, PJ; Statistical analysis: RS; Administrative, technical, or material support: FP; Supervision: RS, PG.

Corresponding author

Correspondence to Francesca Pisano.

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Research involving human participants and/or animals

The study has been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.

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For this type of study, informed consent is not required.

Conflict of interest

The authors declare that they have no conflict of interest.

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Soria, F., Pisano, F., Gontero, P. et al. Predictors of oncological outcomes in T1G3 patients treated with BCG who undergo radical cystectomy. World J Urol 36, 1775–1781 (2018). https://doi.org/10.1007/s00345-018-2450-0

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  • DOI: https://doi.org/10.1007/s00345-018-2450-0

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