Outcome of radiotherapy for invasive bladder cancer in older patients - not candidates for or decline cystectomy.

PURPOSE: Retrospective study to assess the role of radiotherapy (RT) in bladder cancer (BC) in patients who decline cystectomy or for whom it was contraindicated, regarding BC related events. MATERIALS AND METHODS: A cross-sectional study, of patients with BC treated with RT, with or without chemotherapy was carried out, during the period March 2005 to March 2017, excluding patients who performed cystectomy. BC-related events were defined as haematuria, episodes requiring intravesical irrigations or transurethral resection or admission in Urology Department caused by symptoms related to BC. RESULTS: Fifty-eight patients were included, 44 men and 14 women, whose median age at diagnosis was 78.3 years. Nine patients were treated with a RT dose below 50Gy (20-45Gy), in relation with non-resectable disease, nodal involvement, presence of metastasis or poor performance status. Forty-nine patients were treated with a RT dose above 50Gy (maximum 60.4Gy). The median follow-up time was 24 months, with BC-specific survival at 1/5 years of 87.5%/0.0% and 83.1%/33.9% in the group treated with RT dose below 50Gy and above 50Gy, respectively. Results revealed that the number of events decreased significantly after RT for both groups. For the two groups, the median of events before RT was 2.0, decreasing for 1.0 after RT (RT dose<50Gy: P=0.011; RT dose≥50Gy: P=0.026). CONCLUSION: This therapeutic approach can have an important role in older patients with bladder cancer, in terms of reducing disease related events. Symptom control was significantly achieved in both therapeutic groups.

La incidencia acumulada y los factores predictivos de la cistitis rádica en pacientes con cáncer de próstata localizado / Cumulative incidence and predictive factors of radiation cystitis in patients with localized prostate cancer

Objetivo: Determinar la incidencia acumulada de la cistitis rádica y la cistitis rádica severa en una cohorte de pacientes de alto volumen e investigar sus potenciales factores predictivos. Métodos: Hemos realizado un análisis retrospectivo de los datos clínicos de pacientes diagnosticados con cáncer de próstata localizado y tratados con radioterapia en nuestra institución (junio 2005-enero 2013), y cuantificado la incidencia acumulada de cistitis rádica. El análisis de regresión de Cox y las curvas de Kaplan-Meier se calcularon para evaluar los determinantes de la cistitis por radiación. Resultados: Se utilizaron datos de 783 pacientes (557 tratados con radioterapia primaria, 188 con adyuvante y 38 con rescate). El tiempo medio de seguimiento fue de 49 meses (P25-P75: 31,8-69,3). A los 5 años de seguimiento, la incidencia acumulada de cistitis rádica y cistitis rádica severa fue de 9,1 y 1,6%, respectivamente. No se encontró asociación entre la incidencia de cistitis rádica y la edad, el estadio T tumoral, el nivel de PSA basal, la puntuación de Gleason, la clasificación de riesgo de D’Amico, el ajuste de radioterapia (primario frente a adyuvante frente a rescate) o la dosis de radiación aplicada. Conclusiones: Dentro de nuestra cohorte, la cistitis rádica es una complicación poco frecuente del tratamiento de radioterapia prostática y los casos graves que requieren hospitalización son aún más infrecuentes. No se encontró asociación entre las características del tumor, el ajuste de la radioterapia o la dosis de radiación y la incidencia acumulada de cistitis rádica

Purpose: To determine the cumulative incidence of overall and severe radiation cystitis in a high volume cohort of patients and to investigate its potential predictive factors.Methods: We have performed a retrospective analysis of clinical data from patients diagnosed with localized prostate cancer and treated with radiotherapy at our institution (June 2005-January 2013), and quantified the cumulative incidence of radiation cystitis. Cox regression analysis and Kaplan-Meier curves were computed to evaluate the determinants of radiation cystitis. Results: Data from 783 patients was retrieved (557 treated with primary radiotherapy, 188 with adjuvant and 38 with salvage). Median follow-up time was 49 months (P25-P75: 31.8-69.3). At 5 years of follow-up, cumulative incidence of overall and severe radiation cystitis was 9.1 and 1.6%, respectively. No association was found between the incidence of radiation cystitis and age, tumor T stage, baseline PSA level, Gleason score, D’Amico risk classification, radiotherapy setting (primary versus adjuvant versus salvage) or radiation dose applied. Conclusions: Within our cohort, radiation cystitis is an uncommon complication of prostatic radiotherapy treatment, and severe cases requiring hospitalization are even more infrequent. We found no association between tumor characteristics, radiotherapy setting or radiation dose and the cumulative incidence of radiation cystitis

Cumulative incidence and predictive factors of radiation cystitis in patients with localized prostate cancer. / La incidencia acumulada y los factores predictivos de la cistitis rádica en pacientes con cáncer de próstata localizado.

PURPOSE: To determine the cumulative incidence of overall and severe radiation cystitis in a high volume cohort of patients and to investigate its potential predictive factors. METHODS: We have performed a retrospective analysis of clinical data from patients diagnosed with localized prostate cancer and treated with radiotherapy at our institution (June 2005-January 2013), and quantified the cumulative incidence of radiation cystitis. Cox regression analysis and Kaplan-Meier curves were computed to evaluate the determinants of radiation cystitis. RESULTS: Data from 783 patients was retrieved (557 treated with primary radiotherapy, 188 with adjuvant and 38 with salvage). Median follow-up time was 49 months (P25-P75: 31.8-69.3). At 5 years of follow-up, cumulative incidence of overall and severe radiation cystitis was 9.1 and 1.6%, respectively. No association was found between the incidence of radiation cystitis and age, tumor T stage, baseline PSA level, Gleason score, D'Amico risk classification, radiotherapy setting (primary versus adjuvant versus salvage) or radiation dose applied. CONCLUSIONS: Within our cohort, radiation cystitis is an uncommon complication of prostatic radiotherapy treatment, and severe cases requiring hospitalization are even more infrequent. We found no association between tumor characteristics, radiotherapy setting or radiation dose and the cumulative incidence of radiation cystitis.