Prediagnosis Prostate Specific Antigen Velocity is Associated With Risk of Prostate Cancer Progression Following Brachytherapy and External Beam Radiation Therapy

Men with a prediagnosis prostate specific antigen velocity of 2.0 ng/ml per year or greater are at increased risk for cancer progression following brachytherapy or external beam radiation compared to men with a prostate specific antigen velocity of less than 2.0 ng/ml per year.