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Autor(en) / Beteiligte
Titel
Predictive clinico-pathological factors to identify BCG, unresponsive patients, after re-resection for T1 high grade non-muscle invasive bladder cancer
Ist Teil von
  • Urologic oncology, 2022-11, Vol.40 (11), p.490.e13-490.e20
Ort / Verlag
United States: Elsevier Inc
Erscheinungsjahr
2022
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
  • •High-grade non-muscle invasive bladder cancer treated with transurethral resection of bladder tumor (TURB) plus bacillus of Calmette-Guerin (BCG).•Up to 40% of patients have recurrence/progression within 2 years despite BCG.•Before starting BCG therapy, a re-TURB is performed within 2 to 6 weeks.•Worse prognosis: multifocality, lymphovascular invasion, and high-grade on re-TURB.•BCG unresponsive patients report worse oncological outcomes. Seventy-five percent of bladder cancers are non-muscle invasive. The treatment strategy includes the transurethral resection of bladder tumor (TURB) followed by intravesical immunotherapy with the bacillus of Calmette-Guerin (BCG) or chemotherapy, depending on the grade of bladder tumor. Despite a proper BCG intravesical instillations schedule, up to 40% of patients present a failure within 2 years. The aim of this retrospective study was to investigate the predictive factors in the response to BCG in patients with a high-grade non-muscle invasive bladder cancer diagnosis. Patients with non-muscle invasive bladder cancer from 13 hospitals and academic institutions were identified and treated, from January 1, 2002, until December 31, 2012, with TURB and a subsequent re-TURB for restaging before receiving BCG. Follow-up was performed with urine cytology and cystoscopy every 3 months for 1 year and, successively every 6 months. Univariate and multivariate Cox regression models addressed the response to BCG therapy. Kaplan-Meier overall survival (OS) and cancer-specific survival (CSS) estimates were determined for BCG responsive vs. BCG unresponsive patients. A total of 1,228 patients with non-muscle invasive bladder cancer were enrolled. Of 257 (20.9%) patients were BCG unresponsive. Independent predictive factors for response to BCG were: multifocality (HR: 1.4; 95% CI 1.05–1.86; P = 0.019), lymphovascular invasion (HR: 1.75; 95% CI 1.22–2.49; P = 0.002) and high-grade on re-TURB (HR: 1.39; 95% CI 1.02–1.91; P = 0.037). Overall survival was significantly reduced in BCG-unresponsive patients compared to BCG-responsive patients at 5 years (82.9% vs. 92.4%, P < 0.0001) and at 10 years (44.2% vs. 74.4%, P < 0.0001). Similarly, cancer-specific survival was reduced in BCG-unresponsive patients at 5 years (90.6% vs. 97.3%, P < 0.0001) and at 10 years (72.3% vs. 87.2%, P < 0.0001). Multifocality, lymphovascular invasion, and high-grade on re-TURB were independent predictors for response to BCG treatment. BCG-unresponsive patients reported worse oncological outcomes.
Sprache
Englisch
Identifikatoren
ISSN: 1078-1439
eISSN: 1873-2496
DOI: 10.1016/j.urolonc.2022.05.016
Titel-ID: cdi_proquest_miscellaneous_2674756925

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