Treatment FAQ

when to do radiation treatment for cancer

by Ms. Deborah Kuphal Published 2 years ago Updated 2 years ago
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As the only (primary) treatment for cancer. Before surgery, to shrink a cancerous tumor (neoadjuvant therapy) After surgery, to stop the growth of any remaining cancer cells (adjuvant therapy) In combination with other treatments, such as chemotherapy, to destroy cancer cells.Jul 1, 2020

When is radiation therapy used to treat cancer?

Your doctor may suggest radiation therapy as an option at different times during your cancer treatment and for different reasons, including: As the only (primary) treatment for cancer Before surgery, to shrink a cancerous tumor (neoadjuvant therapy) After surgery, to stop the growth of any remaining cancer cells (adjuvant therapy)

When is the best time to get radiation therapy?

Radiation therapy may be given before, during, or after these other treatments to improve the chances that treatment will work. The timing of when radiation therapy is given depends on the type of cancer being treated and whether the goal of radiation therapy is to treat the cancer or ease symptoms.

How long does radiation therapy take to work for cancer?

Typically, people have treatment sessions 5 times per week, Monday through Friday. This schedule usually continues for 3 to 9 weeks, depending on your personal treatment plan. This type of radiation therapy targets only the tumor. But it will affect some healthy tissue surrounding the tumor.

How often should I have radiation therapy for breast cancer?

The frequency of radiation therapy is largely dependent on your unique diagnosis, tumor location and treatment plan. Radiotherapy may be used to treat and cure smaller tumors or to attempt to reduce tumor size prior to surgery.

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At what stage of cancer is radiotherapy used?

Radiotherapy may be used in the early stages of cancer or after it has started to spread. It can be used to: try to cure the cancer completely (curative radiotherapy) make other treatments more effective – for example, it can be combined with chemotherapy or used before surgery (neo-adjuvant radiotherapy)

When should radiation therapy be used?

Radiation therapy is used to treat cancer and ease cancer symptoms. When used to treat cancer, radiation therapy can cure cancer, prevent it from returning, or stop or slow its growth. When treatments are used to ease symptoms, they are known as palliative treatments.

Why would radiation therapy be recommended?

Radiation therapy, or radiotherapy, is the use of various forms of radiation to safely and effectively treat cancer and other diseases. Radiation oncologists may use radiation to cure cancer, to control the growth of the cancer or to relieve symptoms, such as pain. Radiation therapy works by damaging cells.

How long should you wait for radiotherapy?

You usually start radiotherapy 4 to 6 weeks after surgery. If you are also having chemotherapy, radiotherapy is given after chemotherapy. Some women may have a very low risk of the cancer coming back in the breast after surgery.

Is radiation better than chemo?

The radiation beams change the DNA makeup of the tumor, causing it to shrink or die. This type of cancer treatment has fewer side effects than chemotherapy since it only targets one area of the body.

What is the success rate of radiation therapy?

“When patients are treated with modern external-beam radiation therapy, the overall cure rate was 93.3% with a metastasis-free survival rate at 5 years of 96.9%.

What are the disadvantages of radiation therapy?

What are the disadvantages? Radiotherapy can cause side effects, including tiredness, sickness and runny poo (diarrhoea). If you have chemoradiotherapy, you may get side effects from the chemotherapy.

Do tumors grow back after radiation?

Normal cells close to the cancer can also become damaged by radiation, but most recover and go back to working normally. If radiotherapy doesn't kill all of the cancer cells, they will regrow at some point in the future.

How many sessions of radiotherapy is normal?

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.

What comes first chemo or radiation?

Radiation generally starts after chemotherapy is done.

Do you lose hair with radiotherapy?

Radiation therapy can also cause hair loss on the part of the body that is being treated. Hair loss is called alopecia. Talk with your health care team to learn if the cancer treatment you will be receiving causes hair loss.

What can you not do during radiation treatment?

Avoid raw vegetables and fruits, and other hard, dry foods such as chips or pretzels. It's also best to avoid salty, spicy or acidic foods if you are experiencing these symptoms. Your care team can recommend nutrient-based oral care solutions if you are experiencing mucositis or mouth sores caused by cancer treatment.

What Is Radiation Therapy?

Radiation therapy uses high-energy particles or waves, such as x-rays, gamma rays, electron beams, or protons, to destroy or damage cancer cells.Yo...

Who Gets Radiation Therapy?

More than half of people with cancer get radiation therapy. Sometimes, radiation therapy is the only cancer treatment needed.

What Are The Goals of Radiation Therapy?

Most types of radiation therapy don’t reach all parts of the body, which means they’re not helpful in treating cancer that has spread to many place...

How Is Radiation Therapy given?

Radiation therapy can be given in 3 ways: 1. External radiation (or external beam radiation): uses a machine that directs high-energy rays from out...

Who Gives Radiation Therapy Treatments?

During your radiation therapy, a team of highly trained medical professionals will care for you. Your team may include these people: 1. Radiation o...

Does Radiation Therapy Cause Cancer?

It has long been known that radiation therapy can slightly raise the risk of getting another cancer. It’s one of the possible side effects of treat...

Does Radiation Therapy Affect Pregnancy Or Fertility?

Women: It’s important not to become pregnant while getting radiation – it can harm the growing baby. If there’s a chance you might become pregnant,...

Questions to Ask About Radiation Therapy

Before treatment, you’ll be asked to sign a consent form saying that your doctor has explained how radiation therapy may help, the possible risks,...

Will I Be Radioactive During Or After External Radiation Treatment?

External radiation therapy affects cells in your body only for a moment. Because there’s no radiation source in your body, you are not radioactive...

What is the treatment for cancer that has returned?

To treat cancer that has returned (recurred) If a person's cancer has returned (recurred), radiation might be used to treat the cancer or to treat symptoms caused by advanced cancer. Whether radiation will be used after recurrence depends on many factors.

How does radiation help cancer cells?

But cancer cells grow and divide faster than most normal cells. Radiation works by making small breaks in the DNA inside cells. These breaks keep cancer cells from growing and dividing and cause them to die.

How is radiation given?

Radiation therapy can be given in 3 ways: 1 External radiation (or external beam radiation): uses a machine that directs high-energy rays from outside the body into the tumor. It’s done during outpatient visits to a hospital or treatment center. It's usually given over many weeks and sometimes will be given twice a day for several weeks. A person receiving external radiation is not radioactive and does not have to follow special safety precautions at home. 2 Internal radiation: Internal radiation is also called brachytherapy. A radioactive source is put inside the body into or near the tumor. With some types of brachytherapy, radiation might be placed and left in the body to work. Sometimes it is placed in the body for a period of time and then removed. This is decided based on the type of cancer. Special safety precautions are needed for this type of radiation for a period of time. But it's important to know if the internal radiation is left in the body, after a while it eventually is no longer radioactive. 3 Systemic radiation: Radioactive drugs given by mouth or put into a vein are used to treat certain types of cancer. These drugs then travel throughout the body. You might have to follow special precautions at home for a period of time after these drugs are given.

What doctor is trained to treat cancer?

Radiation oncologist: This doctor is specially trained to treat cancer with radiation. This person oversees your radiation treatment plan. Radiation physicist: This is the person who makes sure the radiation equipment is working as it should and that it gives you the exact dose prescribed by your radiation oncologist.

Why do people get radiation to their head?

This is done to help prevent cancer from spreading to the head even before it can.

How does cancer spread?

Cancer can spread from where it started to other body parts. Doctors often assume that a few cancer cells might already have spread even when they can’t be seen on imaging scans like CT scans or MRIs. In some cases, the area where the cancer most often spreads to may be treated with radiation to kill any cancer cells before they grow into tumors. For instance, people with certain kinds of lung cancer may get radiation to the head, even when there is no cancer known to be there, because their type of lung cancer often spreads to the brain. This is done to help prevent cancer from spreading to the head even before it can. Sometimes, radiation to prevent future cancer can be given at the same time that radiation is given to treat existing cancer, especially if the area the cancer might spread to is close to the tumor itself.

How many people with cancer get radiation?

More than half of people with cancer get radiation therapy. Sometimes, radiation therapy is the only cancer treatment needed and sometimes it's used with other types of treatment. The decision to use radiation therapy depends on the type and stage of cancer, and other health problems a patient might have.

How long does it take for cancer to respond to radiation?

In some cases, your cancer may respond to treatment right away. In other cases, it may take weeks or months for your cancer to respond.

What is the treatment for cancer?

Radiation therapy. External beam radiation uses high-powered beams of energy to kill cancer cells. Beams of radiation are precisely aimed at the cancer using a machine that moves around your body. Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. Radiation therapy most often uses X-rays, but ...

Why do people get radiation therapy?

Why it's done. More than half of all people with cancer receive radiation therapy as part of their cancer treatment. Doctors use radiation therapy to treat just about every type of cancer. Radiation therapy is also useful in treating some noncancerous (benign) tumors.

What type of radiation is used in X-rays?

The term "radiation therapy" most often refers to external beam radiation therapy. During this type of radiation, the high-energy beams come from a machine outside of your body that aims the beams at a precise point on your body.

How does radiation damage cells?

Radiation therapy damages cells by destroying the genetic material that controls how cells grow and divide. While both healthy and cancerous cells are damaged by radiation therapy, the goal of radiation therapy is to destroy as few normal, healthy cells as possible.

How long does radiation treatment last?

Expect each treatment session to last approximately 10 to 30 minutes. In some cases, a single treatment may be used to help relieve pain or other symptoms associated with more-advanced cancers. During a treatment session, you'll lie down in the position determined during your radiation simulation session.

What is the purpose of neoadjuvant therapy?

Before surgery, to shrink a cancerous tumor (neoadjuvant therapy) After surgery, to stop the growth of any remaining cancer cells (adjuvant therapy) In combination with other treatments, such as chemotherapy, to destroy cancer cells. In advanced cancer to alleviate symptoms caused by the cancer.

How often should you check for radiation?

During your treatment, your radiation oncologist will check how well it is working. Typically, this will happen at least once a week. If needed, they may adjust your treatment plan.

How long does radiation therapy last?

It is the most common radiation therapy treatment for cancer. Each session is quick, lasting about 15 minutes. Radiation does not hurt, sting, or burn when it enters the body.

What type of doctor is responsible for radiation therapy?

Radiation oncologist. This type of doctor specializes in giving radiation therapy to treat cancer. A radiation oncologist oversees radiation therapy treatments. They work closely with other team members to develop the treatment plan. Radiation oncology nurse.

What is simulation in radiation therapy?

Simulating and planning treatment. Your first radiation therapy session is a simulation. This means it is a practice run without giving radiation therapy. Your team will use imaging scans to identify the tumor location.

Why is it important to be in the same position for radiation?

It is important for your body to be in the same position for each treatment. Your radiation oncology team cares about your comfort. Talk with the team to find a comfortable position that you can be in every time you come in for radiation therapy.

What is informed consent for radiation?

Giving permission for radiation therapy. If you choose to receive radiation therapy, your health care team will ask you to sign an "informed consent" form. Signing the document means: Your team gave you information about your treatment options. You choose to have radiation therapy.

How long does it take for radiation to go away?

The 2-day break in treatment each week allows your body some time to repair this damage. Some of the effects may not go away until the treatment period is completed. Let the health care professionals if you are experiencing side effects. Read more about the side effects of radiation therapy.

What kind of radiation therapy is used for cancer?

The kind of radiation therapy you get depends on things like: The two main types of radiation therapy for cancer are: External beam radiation therapy . A large machine aims radiation beams from outside your body to a cancer tumor from many angles. It can treat a variety of cancers.

How long does radiation treatment take?

A visit usually lasts 30 minutes to an hour, most of which is spent getting you in the correct position. The treatment itself usually takes 5 minutes or less.

How to treat cancer before surgery?

The aim is to treat your cancer by slowing or stopping tumor growth. Your doctor may sometimes suggest you get radiation therapy to shrink a tumor before you get surgery. Or they may recommend it after surgery to keep a tumor from coming back. If cancer cells have spread to other parts of your body, radiation therapy can kill them ...

What is external beam radiation therapy?

External beam radiation therapy. A large machine aims radiation beams from outside your body to a cancer tumor from many angles. It can treat a variety of cancers. The machine can be quite noisy, but it won't touch you. It sends radiation to the specific area where there's cancer.

How does brachytherapy work?

They put it inside you using a small tube called a catheter or a device known as an applicator. Brachytherapy usually treats head, neck, breast, cervix, endometrial, prostate, and eye cancers. If your doctor uses a low dose of radiation in brachytherapy, they'll remove the implant after several days. If they use a higher dose, they usually take it ...

What is the treatment for cancer?

Radioembolization. Cancer Caused by Radiation Therapy. If you've been diagnosed with cancer, your doctor may suggest you get radiation therapy. It's a common treatment that shrinks tumors and kills cancer cells -- and might be the only one you need to tackle your disease.

How long does it take for radiation to go away?

If they use a higher dose, they usually take it out after 10 to 20 minutes, and you'll get two doses a day for around 2 to 5 weeks. Depending on the type and location of your cancer and the other treatments you've had, your doctor may also place an implant in your body permanently and the radiation will weaken with time.

Radiation Therapy Basics

Learn the basics about what radiation therapy is and how it's used to treat cancer.

Getting Radiation Therapy

Find out what it's like to get radiation therapy and how to manage side effects.

Common Concerns

Get information about common concerns people have when getting radiation therapy.

How often should I do radiation therapy?

External beam radiation therapy generally includes a treatment every day for several weeks and involves the following steps: Your care team will plan your radiation therapy using imaging exams, such as CT or MRI, to pinpoint the tumor and normal tissues around it.

How does radiation therapy help cancer?

To minimize radiation treatment side effects, a radiation oncologist uses specialized equipment and techniques to precisely target your tumor and reduce damage to healthy cells. Radiation therapy is only one method to treat cancer and other conditions.

What are the different types of radiation therapy?

Types of radiation therapy. The types of radiation therapy include: External beam radiation therapy delivers radiation from a machine outside the body to treat many types of cancer. A radiation oncologist or technician directs the radiation beam precisely at the tumor or cancer. Stereotactic radiosurgery (Gamma Knife and CyberKnife) ...

What is radioactive iodine used for?

For example, a radiation oncologist uses radioactive iodine to treat thyroid cancer and radioactive antibodies to treat certain cases of non-Hodgkin lymphoma. Radiopharmaceuticals can also treat certain brain tumors and bone pain from bone cancer.

How do doctors treat cancer?

Doctors use radiation therapy most often to treat cancer. Your doctor may recommend radiotherapy to: Destroy a cancerous tumor. Lower the risk that cancer will grow again after other treatments such as surgery or chemotherapy. Shrink a tumor before surgically removing it. Shrink a tumor to ease pain or other cancer symptoms.

Where is the radiation placed?

Internal radiation therapy or brachytherapy involves placing a radioactive material directly inside your tumor or right next to your tumor or cancer. For example, a radiation oncologist places radioactive seed implants at the prostate gland to treat prostate cancer.

How does laser therapy work?

Laser therapy removes tumors and treats cancer symptoms with a laser. Photodynamic therapy combines special light-sensitive drugs with specific wavelengths of light. Your doctor injects the drug into your tumor and exposes it to the light. This produces a reaction that kills cancer cells.

How long does radiation treatment last?

What Happens During Radiation. The treatment is normally Monday through Friday and lasts about 45 minutes. A lot of time is spent getting your body in the right position, so the radiation hits its desired locations. You lay down on a custom-molded table. A technician positions your body using lasers and measurements.

How long does it take for radiation to hit your body?

This may seem scary, but this ensures the radiation does not hit healthy areas. The radiation takes a couple of minutes. You can sense when the radiation hits your body if you receive radiation to your brain.

Does radiation cause hair loss?

Radiation to your brain causes hair loss, but over time it grows back. As your hair grows again, so will you. Remember, during and after radiation treatment, listen to your body, ask questions, acknowledge side effects and adjust.

How long does radiation treatment last?

For certain tumors, treatments may be less than five days per week and only last for a week or two.

How does radiation therapy help with metastasis?

SERO takes the time and attention needed to craft a detailed treatment program for radiation therapy . This can also be in conjunction with other therapies and treatments used by your oncologist and multidisciplinary care team. SERO is dedicated to reducing your time in treatment through maximized, aggressive treatments when appropriate. Learn more about the possibilities and whether radiotherapy is right for your unique needs by scheduling a consultation online today.

How long does a radiotherapy session last?

It is a complex question with an answer that is individualized to each patient and their specific anatomy, but most sessions last anywhere between 15 minutes and 45 minutes.

What is the purpose of digital imaging and radiation therapy?

Prior to receiving treatment, extensive testing and digital imaging are used to develop a specific treatment plan that will target the cancer, based on the type, stage and patient characteristics. Your physician will be able to discuss whether radiation therapy is indicated for your particular type of cancer.

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Overview

Treatment for cancer involving radioactive energy to destroy the cancer cells and their division.

Treatment for: Cancer

Type of procedure: Noninvasive

Recovery time: Can take several days

Duration: Few minutes

Hospital stay: Not typically needed

Why It's Done

Risks

How You Prepare

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Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. Radiation therapy most often uses X-rays, but protons or other types of energy also can be used. The term "radiation therapy" most often refers to external beam radiation therapy. During this type of radiation, the high-energy bea…
See more on mayoclinic.org

What You Can Expect

  • More than half of all people with cancer receive radiation therapy as part of their cancer treatment. Doctors use radiation therapy to treat just about every type of cancer. Radiation therapy is also useful in treating some noncancerous (benign) tumors.
See more on mayoclinic.org

Results

  • Radiation therapy side effects depend on which part of your body is being exposed to radiation and how much radiation is used. You may experience no side effects, or you may experience several. Most side effects are temporary, can be controlled and generally disappear over time once treatment has ended. Some side effects may develop later. For example, in rare circumsta…
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Clinical Trials

  • Before you undergo external beam radiation therapy, your health care team guides you through a planning process to ensure that radiation reaches the precise spot in your body where it's needed. Planning typically includes: 1. Radiation simulation.During simulation, your radiation therapy team works with you to find a comfortable position for you during treatment. It's imperative that you li…
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