Posted 1/2/2018 9:05 AM (GMT -5)
Howard - Although I do PSA measurements every 3 months, I did not see a significant PSA drop until about 6 months after SBRT. Yes, the 3-month read was lower than pre-treatment, but at 6 months it dropped to almost half of my pre-treatment value. Then it leveled off at 9 months, and again took another fairly large drop at 12 months.
The moral of my story. . . we're all different. As long as your PSA trends downward, it is a good outcome. The amount of drop, and how long it takes to get to the bottom of the slope, are just factoids. As long as it doesn't trend upward, it is working as planned.