What are the advantages and disadvantages of brachytherapy (seed implantation) versus external beam radiation?
There are advantages and disadvantages to both internal radiation therapy (brachytherapy) and external beam radiation therapy. The recommendation by Smilow Center radiation oncologists will depend both on the patient’s concerns about the duration and side effects of treatment, as well as the stage and aggressiveness of the cancer. Some studies have shown that brachytherapy is superior at preserving erectile function, although these studies have not been conclusive. In addition, brachytherapy may not be appropriate for men with severe lower urinary tract symptoms such as frequency and urgency, since the symptoms may be aggravated, and acute urinary retention may develop.
