Treatment for lung cancer
Diathermy treatment uses an electrical current to destroy cancer cells. It is also called electrocautery or thermocautery.
You might have diathermy treatment if your cancer is blocking an airway and making it difficult for you to breathe. The treatment helps you to breathe more easily afterwards.
You normally have treatment in the endoscopy unit at the hospital. And you’ll have it under a general anaesthetic. This means you’ll be asleep and won’t feel anything.
You might have diathermy alongside other treatments.
Your doctor or specialist nurse explains what happens and how they do the treatment. They ask you to sign a form saying that you agree to have the procedure. You can ask them any questions that you have. Tell them about any medicines you are taking.
You shouldn’t eat or drink anything except water for 4 to 6 hours before the treatment. You can drink water until 2 hours beforehand.
A nurse puts a small tube called a cannula into a vein in the back of your hand. They go with you to the endoscopy or x-ray department.
You have the general anaesthetic medicine through the cannula in your hand.
When you’re asleep your doctor gently puts a long flexible tube called a bronchoscope into your airway. They pass a small diathermy probe down the bronchoscope tube.
The probe passes an electrical current into the tumour. This produces heat that destroys the cancer cells.
The doctor takes out the bronchoscopy tube.
You stay in the endoscopy department until the anaesthetic wears off.
You might feel a bit drowsy and confused but you won’t remember any of the treatment.
You might wear an oxygen mask for a short time.
A nurse then takes you back to your ward.
You might have to stay in hospital overnight.
You might have a sore throat. Taking painkillers for a few days helps. Tell your nurse or doctor if you still have pain.
You might have some slight bleeding and have some blood in your sputum (phlegm). It might give you a metallic taste in your mouth. This usually gets better over a few days.
Rarely, some people have a lot of bleeding after diathermy.
Tell your doctor if you’re coughing up blood.
Your doctor will talk to you about the risks and benefits of having diathermy. It’s a safe procedure but every treatment has potential risks and side effects.
Air or gas can leak into the space around the lung and make it collapse. This makes you feel very breathless. It can get better on its own, or your doctor can put in a small tube to expand the lung again.
Let your doctor know straight away if your breathing gets worse after your treatment.
Let your doctor know if you develop any signs of a chest infection. This includes having a high temperature and your phlegm (sputum) changing colour.
The risk is small, but a hole can happen in the airway tissue (perforation) during diathermy.
Your doctor will take extra care to prevent this from happening.
Diathermy can cause a change to your heart rhythm if used close to the heart. It can also interfere with implanted cardiac pacemakers or defibrillators.
Your doctor will take extra care to prevent this from happening.
You can have the treatment again if the tumour grows back. Or your doctor might suggest other treatments.
Last reviewed: 27 Feb 2023
Next review due: 27 Feb 2026
Your treatment depends on several factors. These include what type of lung cancer you have, how big it is and whether it has spread (the stage). It also depends on your general health.
Lung cancer starts in the windpipe (trachea), the main airway (bronchus) or the lung tissue. Cancer that starts in the lung is called primary lung cancer.
There is support available during and after treatment to help you cope. This includes support from your clinical nurse specialist, cancer charities, community services, and family and friends.
Lung cancer starts in the windpipe (trachea), the main airway (bronchus) or the lung tissue. Cancer that starts in the lung is called primary lung cancer.
Feeling short of breath can be hard to live with. It can make you feel tired and like everything is a struggle. But some things can help you to cope.
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