How effective is radiotherapy for brain tumour?

Radiotherapy uses carefully planned radiation to damage tumour cells while limiting exposure to nearby healthy brain tissue. It may be used after surgery to treat cells that remain, as the main treatment when surgery is unsuitable, or to ease symptoms caused by pressure or tumour growth. The team chooses the dose, timing and delivery method according to the tumour’s features and its position near areas responsible for movement, speech, vision or memory.

Some plans treat a focused area, while others cover a wider region when disease is more spread out. The intended result may be tumour control, slower growth, symptom relief or preparation for another treatment; these goals are not interchangeable.

Take the medicines prescribed by your oncology team and tell them about headaches, seizures, steroid effects, vision changes or new weakness before treatment starts. Attend planning appointments so imaging can guide the treatment area. During the course, fatigue, scalp irritation, hair loss in the treated area and temporary swelling can occur; report changes early because the team may adjust supportive medicines.

Keep a simple record of symptoms and medicines, and arrange help with travel or demanding tasks if tiredness affects concentration. Do not stop steroids or anti-seizure medicines suddenly unless your treating clinician gives that instruction.

Contact the treatment team promptly for worsening headache, repeated vomiting, increasing drowsiness, a new seizure, confusion, new weakness, trouble speaking or a sudden change in vision. Seek emergency help for a seizure that does not stop, loss of consciousness or rapidly worsening neurological symptoms.

Ask which goal radiotherapy has in your plan, what area will be treated, how progress will be checked, which side effects need same-day advice and how treatment may fit with surgery, medicines or other oncology care.