What should you know about PDR brachytherapy?

PDR means pulsed dose rate. A small radioactive source moves through an applicator for brief pulses, then returns to a shielded afterloader. The applicator stays in position while the treatment plan is delivered, allowing the radiation team to shape exposure around the treatment area. Because the source is temporary, it is removed or withdrawn when the planned course is complete.

The applicator and route depend on the tumour location. Brachytherapy may be used for Cervical Cancer, Womb Cancer, Prostate Cancer, or Vaginal Cancer in carefully selected situations. Brachytherapy Seeds are a different material and technique, while a Brachytherapy Afterloader controls a temporary source.

Your team will explain anaesthesia or sedation, positioning, medicines, eating and drinking instructions, and whether you will stay in hospital between pulses. Tell them about medicines that affect bleeding, allergies, pregnancy possibility, bowel or bladder symptoms, and previous pelvic treatment. After treatment, follow instructions about activity, wound or applicator care, pain relief, and when normal washing or sexual activity can resume. The general Brachytherapy page can help you prepare for a more detailed conversation.

Call the treatment unit promptly for heavy bleeding, severe or worsening pain, fever, inability to pass urine, new bowel problems, or unusual discharge. Seek emergency help for collapse, severe breathing difficulty, or uncontrolled bleeding. Mild local soreness or tiredness may occur, but your team should know if symptoms are escalating or interfering with drinking, walking, or sleep.

Why is PDR suitable for my tumour location? How long will the applicator remain in place? What anaesthesia and monitoring are planned? What restrictions apply between pulses and after the applicator is removed?