Brachytherapy for Prostate Cancer
What Is Brachytherapy?
Brachytherapy for prostate cancer is a minimally invasive radiation therapy that involves implanting tiny radioactive seeds directly into the prostate gland. In low-dose-rate (LDR) brachytherapy, the seeds contain Palladium-103, which emits a continuous low dose of radiation over several weeks to target cancer cells while protecting surrounding healthy tissue. When performed with real-time adaptive planning, the procedure delivers millimeter-level precision and allows dose escalation to areas of concern. The seeds remain in the prostate permanently but eventually stop emitting radiation. For men with localized prostate cancer, LDR brachytherapy is a well-established treatment option backed by long-term clinical data, with most patients returning to normal activities within days.
How Does Brachytherapy Work?
The low-dose brachytherapy procedure is straightforward, minimally invasive, and completed in a single outpatient visit. Here is what you can expect from start to finish.
Brachytherapy Side Effects
One of the most significant advantages of modern LDR brachytherapy is its mild side effects. Compared to many conventional prostate cancer treatments, LDR brachytherapy has lower rates of sexual, urinary, and gastrointestinal side effects. That said, some temporary side effects are normal as your body adjusts following the prostate seed implant procedure.
Who Is a Candidate for Brachytherapy?
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Frequently Asked Questions (FAQs) About Brachytherapy
Q How long does brachytherapy radiation last?
The radioactive seeds begin working immediately after implantation and release most of their radiation within the first three months. After around 8 to 10 months, nearly all of the radiation has been delivered. The seeds remain in the prostate permanently but are harmless once their radioactivity has fully decayed.
Q How successful is brachytherapy for prostate cancer?
Brachytherapy has strong long-term outcomes for men with localized prostate cancer. Studies show survival rates comparable to surgery, with the added benefit of fewer complications. Success depends on factors such as cancer stage, PSA levels, and Gleason score, which is why your care team will carefully evaluate whether brachytherapy is the right fit for you.
Q Will the radioactive seeds harm people around me?
The radiation emitted by the seeds is of very low energy and travels only a few millimeters beyond the prostate, making it unlikely to affect those around you. However, as a precaution, doctors typically advise limiting prolonged close contact with pregnant women and young children for the first couple of months after the procedure. Your care team will provide specific guidance based on your individual treatment.
Q Can brachytherapy be repeated if prostate cancer returns?
In some cases, yes. If cancer returns after brachytherapy, additional treatment options may be available, including repeat brachytherapy, HIFU, or hormone therapy, depending on where and how the cancer has recurred. Your doctor will evaluate your PSA levels and overall health to determine the best next step.
