External Beam Radiation Therapy With a Brachytherapy Boost Versus Radical Prostatectomy in Gleason Pattern 5 Prostate Cancer: A Population-Based Cohort Study

摘要

Purpose: Patients with prostate cancer (PCa) containing Gleason pattern (GP) 5 disease experience a greater and earlier incidence of prostate cancer-specific mortality (PCSM) than general PCa patients. This affords the statistical power to compare PCSM outcomes among different treatment modalities even when restricting the analysis to patients treated in the modern era. The purpose of the present study was to compare the survival outcomes among patients with GP 5 PCa on needle core biopsy or transurethral resection of the prostate who underwent extremely dose-escalated radiation therapy (RT; exemplified by external beam RT with a brachytherapy boost [EBRT + BT]) versus radical prostatectomy (RP) in the modern era.