Cancer Patients, What Happens? -Radiotherapy
Radiotherapy can be done in many different ways, depending on your circumstances.
Before treatment starts
Deciding to have treatment
If you're diagnosed with cancer, you'll be cared for by a team of specialists. Your team will recommend radiotherapy if they think it's the best option for you, but the final decision is yours.
Making this decision can be difficult. You may find it useful to write a list of questions to ask your care team.
For example, you may want to ask about:
what the aim of treatment is – for example, is it being used to cure the cancer, relieve your symptoms or make other treatments more effective?
the possible side effects and what can be done to prevent or relieve them
how effective radiotherapy is likely to be
whether any other treatments could be tried instead
If you agree with your team's recommendation, they'll start to plan your treatment once you have given your Consent to treatment.
Planning your treatment
Your treatment will be carefully planned to ensure the highest possible dose is delivered to the cancer, while avoiding damage to nearby healthy cells as much as possible.
You will probably have a CT scan to work out exactly where the cancer is and how big it is.
After the scan, some very small but permanent ink marks may be made on your skin to ensure the right area is targeted accurately each time.
If you're having radiotherapy to your head or neck, a plastic mask will be made for you to wear during treatment. The ink marks will be made on the mask.
Your treatment
Radiotherapy is usually given daily over several weeks.
Before treatment starts, your care team will create a plan that outlines:
the type of radiotherapy you'll have
how many treatment sessions you'll need?
how often you'll need treatment
Most people have 5 treatments each week (1 treatment a day from Monday to Friday, with a break at the weekend). But sometimes treatment may be given more than once a day or over the weekend.
Your doctor may call each dose a "fraction", although the term "attendance" is sometimes used to indicate how many hospitals visits you'll need to make during treatment.
How radiotherapy is given
Radiotherapy can be given as:
external radiotherapy – where a machine directs beams of radiation at the cancer
a radioactive implant inside your body near the cancer
a radioactive liquid that you swallow or have injected
directly at the tumour during surgery (intrabeam radiotherapy)
External radiotherapy
During external radiotherapy, you lie on a table and a machine directs beams of radiation at the cancer.
The machine is operated from outside the room, but you'll be watched through a window or a camera. There will be an intercom if you need to speak to the person treating you.
You need to keep as still as possible throughout the treatment. It usually only takes a few minutes and is completely painless. You can usually go home soon after it has finished.
Radiotherapy implants
Radioactive implants (metal wires, seeds or tubes) may be used to treat cancer in areas of the body where they can be placed inside the body without surgery (such as the vagina).
Sometimes surgery is used to place an implant near the cancer.
The length of time the implant is left in your body varies. It could be a few minutes or a few days. In some cases, tiny implants may be left inside the body permanently.
The radiation from the implants is painless, but it could be harmful to other people, so you may need to stay in hospital for a few days until the implant is removed.
Permanent implants are not a risk to other people because they produce a very small amount of radiation that gradually decreases over time.
Radiotherapy injections, capsules or drinks
Some types of cancer, including thyroid cancer and some prostate cancer, can be treated with radioactive liquid that you swallowed or have injected.
You may be radioactive for a few days after treatment is given, so you'll probably need to stay in hospital as a precaution until the amount of radiation has fallen to a safe level.
Your treatment team may give you some advice to follow for a few days when you get home, to avoid putting other people at risk.
Intrabeam radiotherapy
This is where radiotherapy is delivered directly at the tumour during breast cancer surgery.
This treatment is not available at every NHS hospital, only those with an intrabeam machine.
Further information:
Cancer Research UK: external radiotherapy
Cancer Research UK: internal radiotherapy
Macmillan: external beam radiotherapy
Macmillan: internal radiotherapy
Issues during treatment
Pregnancy and contraception
Women should avoid becoming pregnant while having radiotherapy, as the treatment could harm the baby.
Use an effective method of contraception, such as a condom, and contact your care team immediately if you think you may be pregnant.
Men having radiotherapy may sometimes be advised to use contraception during treatment and possibly for several months afterwards.
Macmillan has more information about sex during cancer treatment.
Side effects
Radiotherapy can cause a range of side effects.
Read about the side effects of radiotherapy.
Deciding to stop treatment
Some people decide that the benefits of radiotherapy are not worth the poor quality of life due to the side effects.
If you're struggling with the treatment and are having doubts about whether to continue, it's a good idea to speak to your care team.
Your team can give you advice about the likely benefits of continuing with treatment, but the final decision to continue or stop is yours.
Resources
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United States Cancer Statistics (USCS) - CDC https://www.cdc.gov › cancer › uscs This video highlights the features of U.S. Cancer Statistics, the official federal cancer statistics. New Research and Data Releases. Cancers Associated with ...
Cancer Data and Statistics | CDC https://www.cdc.gov › cancer › dcpc › data This video highlights the features of U.S. Cancer Statistics, the official federal cancer statistics. In the United States in 2018, 1,708,921 new cancers ...