Objectives: We evaluated the changes of health-related quality of life (HRQOL) during the 5 years after radical prostatectomy (RP) or external beam radiation therapy (EBRT) for clinical stage T3 prostate cancer (cT3PC). Patients and methods: A total of 750 patients who underwent RP (n = 575) or EBRT (n = 175) participated in our longitudinal outcomes study. Of these patients, 48 RP patients (8%) and 63 EBRT patients (36%) presented with cT3PC and were included in this analysis. Patients completed the general and disease-specific HRQOL with the Short Form 36 (SF-36) and University of California, Los Angeles Prostate Cancer Index, respectively. Results: When examining the mean SF-36 values by time, there was significant impact on treatment outcomes for several items of the general HRQOL in the RP subjects. Those who underwent EBRT reported no significant changes in the general HRQOL throughout the follow-up period. With regard to disease-specific HRQOL, the RP subjects had significantly worse urinary HRQOL post-operatively than the EBRT subjects (P < 0.001). The scores for sexual function declined over the 60 months, but more so in the RP group. The two groups showed similar bowel HRQOL scores throughout the follow-up periods. Conclusions: Both primary treatments for cT3PC can offer satisfactory functional outcomes from the HRQOL perspective, except for a persistent decrease in the sexual activity score. These results may guide the treatment selection and clinical management of patients with HRQOL impairments after treatment for cT3PC.
- External beam radiation therapy
- Quality of life
- Radical prostatectomy
- T3 prostate cancer