Brachytherapy for lung cancer

It is an internal form of radiotherapy rather than a treatment for every lung tumour. A thin catheter can be positioned through a bronchoscope so a temporary radiation source reaches the airway target, then the catheter and source are removed.

An airway tumour can narrow the passage used for breathing and contribute to breathlessness, cough, bleeding or infection behind the blockage. Endobronchial brachytherapy delivers radiation over a short distance from within that passage. It may be considered after other radiotherapy or alongside measures that physically reopen the airway.

The clinician uses bronchoscopy to inspect the airway and guide a catheter beyond or alongside the affected area. Imaging and measurements define where the source should pause. The source is controlled from outside the room and returns to its shielded unit when delivery is complete.

Tell the team about blood-thinning medicines, oxygen use, allergies, implanted devices and recent chest infections. Follow fasting directions if sedation is planned, and arrange for someone to take you home when the unit requires an escort.

After bronchoscopy, wait until staff say swallowing is safe before eating or drinking. A sore throat, cough or small streak of blood may occur after airway instrumentation. Use medicines exactly as directed and keep the emergency contact details nearby.

Seek emergency help for severe or rapidly worsening breathlessness, coughing up more than a small amount of blood, blue or grey lips, chest pain with breathing difficulty, fainting or confusion. These signs need urgent assessment regardless of when treatment occurred.

Contact the cancer team promptly if fever develops, cough is intensifying, phlegm becomes foul-smelling, swallowing remains difficult, or breathlessness does not settle as expected. Those symptoms may reflect infection, swelling or continuing airway narrowing.

Ask whether the aim is to improve airflow, reduce bleeding or control growth in the airway. Clarify how brachytherapy compares with external radiotherapy, bronchoscopy-based tumour removal or an airway stent for your situation.

Request a clear explanation of sedation, repeat bronchoscopy, expected recovery, possible airway swelling and how the team will judge whether breathing has improved.