Health-related quality of life measurement in long-term survivors and outcome following radical radiotherapy for localized prostate cancer

Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]
Razvan M GalalaeGyörgy Kovács

Abstract

To report long-term outcomes in terms of health-related quality of life (HRQoL) and survival of a dose-escalating radiotherapy protocol and to validate a new disease-specific HRQoL instrument. 189 consecutive men with prostate cancer were analyzed; 127 patients had T1-2 (1% T1, 66% T2) and 62 patients (33%) T3 tumors. The pelvic lymphatics were treated to a dose of 50 Gy by external-beam irradiation. The prostate dose was limited to 40 Gy using compensators. The prostate was treated to the total nominal dose of 70 Gy using high-dose-rate (HDR) brachytherapy. The fraction dose was 15 Gy in the McNeal zone (planning target volume [PTV] 1), while 8-9 Gy were applied in the entire prostate (PTV 2). The HRQoL of the 145 long-term survivors was assessed using the EORTC QLQ-C30 and a new prostate-specific instrument (PSM-G 1.0). The reliability of the instruments used and HRQoL scale scores were calculated. Uni-/multivariate analyses of variance were performed. At a mean follow-up of 6.5 years 86.3% of the patients were disease-free, and 78% were biochemically controlled. The mean Cronbach's alpha-values were 0.81 for the QLQ-C30, and 0.74 for the prostate-specific module. Univariate analyses of variance by T-stage, grading, prostata-...Continue Reading

Citations

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