A. Mirza

Previous Cryotherapy and Older Age Predict for Faster Biochemical Response After Definitive SBRT for Prostate Cancer.

Conclusions: Table 1: Univariate Analysis, PSA Decline •Stereotactic Body Radiation Therapy (SBRT) remains an emerging treatment option for men with prostate adenocarcinoma with low or intermediate risk disease. •Despite a growing volume of investigation, there is a paucity of data that characterizes predictors of post-treatment PSA kinetics in the initial six-month window. •Cryosurgery is an evolving minimally invasive therapy for the treatment of focal prostate cancer. •The effect of previous cryosurgery on PSA kinetics following salvage SBRT has not been previously explored. •This study reports the effect of age and previous cryosurgery on initial PSA kinetics for patients that have undergone definitive SBRT for low or intermediate risk prostate cancer.