Radiation Therapy is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumours by damaging their DNA.
Types of Radiation Therapy:
• SRT: Also commonly referred to as SRS (stereotactic radiosurgery),
GammaKnife® or CyberKnife® treatment. Uses accurate and precise techniques
to deliver high doses of radiation to a tumour in a very short period.
• pRT: A low intensity treatment that is not intended to provide as good a longterm prognosis as SRT but is very effective at improving comfort.
Side Effects of Radiation Therapy:
• After either pRT or SRT, some dogs will have hair loss and change in coat colour
in the area directly surrounding the tumour.
• More severe side effects are uncommon but can include skin ulcers with
subsequent infections that develop months after SRT.
Follow-up after Radiation Therapy:
· pRT: We usually recommend a recheck exam 2 and 4 weeks after pRT. You can also consider combining pRT and/or chemotherapy. The pain-relief from pRT is not permanent, but if needed, the treatment can be repeated.
· SRT: Your pet may have the possibility of requiring chemotherapy after radiation therapy. Frequent recheck exams will be needed for possible bloodwork and follow-up for the tumour (X-rays and or CT of the limb and chest, performed every few months).