
What is radioiodine therapy for thyroid cancer?
Radioactive iodine (RAI) is treatment for overactive thyroid (hyperthyroidism) and certain types of thyroid cancer. The term “radioactive” may sound frightening, but it is a safe, generally well-tolerated, and reliable treatment that targets thyroid cells so there is little exposure to the rest of your body’s cells.
What is radioactive iodine treatment?
What is Radioactive Iodine (RAI) Therapy for Thyroid Cancer? Radioactive iodine, or radioiodine, is a type of iodine that emits radiation. We use different isotopes (types of radioactive iodine named for their atomic weight) to diagnose and treat thyroid cancer. These isotopes include: I-123. We use this isotope, which emits less radiation, during radioactive iodine scans to see if thyroid …
What is the best treatment for thyroid cancer?
Radioactive iodine (RAI) treatment involves swallowing a capsule or liquid form of radioactive iodine that thyroid cells take up (absorb), destroying them. It’s effective because healthy cells in the body don’t usually absorb the radioactive iodine. Most people with thyroid cancer get just one or two doses of RAI therapy.
How is radioactive iodine (RAI) used for papillary thyroid cancer?
Aug 19, 2020 · Treatment with radioactive iodine lowers your risk of your thyroid cancer coming back. It’s also used to treat thyroid cancer that spreads to other parts of your body. Radioactive iodine is usually given in pill form, but it can also be given in liquid form if needed. Some people have trouble swallowing pills.

What are the risks of radioactive iodine treatment?
Peoplewho have had RAI therapy may have a slightly increased risk of developing leukemia, stomach cancer, and salivary gland cancer in the future....Short-term side effects of RAI treatment may include:Neck tenderness and swelling.Nausea and vomiting.Swelling and tenderness of the salivary glands.Dry mouth.Taste changes.Mar 14, 2019
How successful is radioactive iodine treatment?
Conclusion: Radioactive iodine treatment is an effective modality for definitive treatment of hyperthyroidism with long-term cure approaching 80%.
How long do you have to be in isolation after radioactive iodine?
You are also required to self isolate for 7 days after your radioiodine treatment in order to minimise the risk of contracting COVID-19 whilst there is still a large amount of radioactivity in your body. A small proportion of people with COVID-19 may become very unwell and require admission to hospital.
How effective is radioactive iodine treatment for thyroid cancer?
Results: The total effective rate of 131I therapy of the current study was 87.9%. The recurrence rate was 12.1%. Of the real 141 thyroid cancer patients, 114 thyroid cancer patients were female (80.15%), and 27 patients were male (19.85%).
Does thyroid removal shorten life expectancy?
We have also shown that treatment per se (thyroidectomy, high-dose radioactive iodine and thyroid hormone medication) is safe and does not shorten life expectancy.
Is radioactive iodine treatment painful?
Some people may have a feeling of tightness or swelling in their neck for a few days after treatment. This is more common if you still had a large part of your thyroid gland when you have radioactive iodine treatment. Some people also feel flushed. Rarely, people can feel pain in their neck.May 24, 2021
Can I use my cell phone after radioactive iodine?
You will have to stay in your room for at least 1 to 2 hours after your treatment. You can use your cell phone or watch TV to help pass the time. You won't be able to have visitors during this time. You may not have any side effects from the treatment right after you get it, but you may have side effects later.Aug 19, 2020
How will I feel after radioactive iodine?
Most people don't feel different after treatment. But a few people may have nausea. Within a few days after treatment, the radioactive iodine will leave your body in your urine and saliva. How long it takes will depend on your age and on the dose you received.
What are the long term side effects of radioactive iodine?
Longer-term complications include recurrent sialoadenitis associated with xerostomia, mouth pain, dental caries, pulmonary fibrosis, nasolacrimal outflow obstruction, and second primary malignancies. This article summarizes the common complications of RAI and methods to prevent and manage these complications.
Is thyroid cancer curable?
This gland produces hormones that regulate your metabolism (how your body uses energy). Thyroid hormones also help control your body temperature, blood pressure and heart rate. Thyroid cancer, a type of endocrine cancer, is generally highly treatable with an excellent cure rate.Aug 13, 2020
Can thyroid come back after radioactive iodine treatment?
Once hypothyroidism has been achieved, it is usually irreversible with the patient requiring lifelong thyroid replacement. Early recurrences are reported in 20–54% of cases within 3–6 months, which can be due to inadequate RAI treatment or early Marine Lenhart syndrome.Sep 12, 2017
Does radioactive iodine treatment shorten your life?
Quality of life is worse at 6-10 years after radioactive iodine therapy of Graves' disease compared with treatment with antithyroid drugs or surgery. Quality of life is worse at 6-10 years after radioactive iodine therapy of Graves' disease compared with treatment with antithyroid drugs or surgery.
How does RAI work?
The thyroid is the most efficient organ at concentrating iodine. RAI treats hyperthyroidism by damaging or destroying thyroid cells through radiation. RAI is taken in an oral capsule form. You don’t need to be hospitalized unless the dose is very high, which is rarely needed.
How long after RAI can I breastfeed?
Pregnancy should be delayed at least six to 12 months after RAI treatment for thyroid cancer. Breast feeding should be stopped at least six weeks before RAI and should not be resumed. In the days immediately following your RAI therapy, be aware of these general precautions to prevent radioactive exposure to others.
What is the treatment for thyroid cancer?
The most common types of thyroid cancer (papillary and follicular) can usually be treated with large doses of radioactive iodine. (The dosages of RAI are much higher than with hyperthyroidism treatment.) The therapy is usually given after removal of the thyroid gland to destroy any remaining thyroid tissue. A “tracer” dose of radioactive iodine can ...
What hormones are needed for nervousness?
The thyroid gland needs iodine to make these hormones. The thyroid is the most efficient organ at concentrating iodine.
What is a tracer used for?
A “tracer” dose of radioactive iodine can also be used to track remaining thyroid tissue and/or cancer that could have spread to other parts of the body. These tests show if iodine concentrates in areas that contain thyroid cancer, and whether large amounts of RAI are needed to destroy the tumor implants.
How long does it take for iodine to flush out of the body?
Most patients need only one dose before their hyperthyroidism is resolved, which may take a few weeks to several months.
What are the side effects of RAI?
Temporary side effects of RAI may include: 1 Neck tenderness and swelling. 2 Nausea. 3 Swollen salivary glands. 4 Loss of taste or taste change. 5 Dry mouth/insufficient salivary production. 6 Dry eyes. 7 Excessive tearing from the eyes.
What is RAI therapy?
RAI therapy sometimes helps control the disease in people with differentiated thyroid cancer that that appears likely to spread or has already spread.
What is the treatment for thyroid cancer?
Radioactive Iodine Treatment for Thyroid Cancer. Radioactive iodine (RAI) treatment involves swallowing a capsule or liquid form of radioactive iodine that thyroid cells take up (absorb), destroying them.
What are the symptoms of RAI?
tiredness and fatigue. sensitivity to cold. weight gain caused by no apparent reason. constipation. To help avoid these symptoms from developing, we usually recommend that you take a synthetic form of TSH ( Thyrogen®) at the beginning of RAI therapy, and in repeated doses if necessary.
Can you stop taking RAI?
People getting RAI therapy should stop taking thyroid replacement medicine for a while. During this time, symptoms of underactive thyroid ( hypothyroidism) can develop. Signs and symptoms of hypothyroidism include. tiredness and fatigue. sensitivity to cold.
Can you get RAI after thyroid surgery?
Most people with thyroid cancer get just one or two doses of RAI therapy. Thyroid cancer specialists at Memorial Sloan Kettering often recommend RAI after surgery in which we remove the thyroid (a thyroidectomy ). This destroys abnormal thyroid tissue that might have been left behind or missed during surgery.
Do you have to wear a mask at MSK?
Masks Are Still Required at MSK. Patients and visitors must continue to wear masks while at MSK, including people who are fully vaccinated. MSK is offering COVID-19 vaccines to all patients age 12 and over. To schedule or learn more, read this. For Adult Patients /.
What is the name of the service that takes up thyroid cells?
If you do, tell your doctor in Molecular Imaging and Therapy Service (MITS) before your treatment. This is sometimes called the Nuclear Medicine service. Radioactive iodine enters your bloodstream and is taken up by any thyroid- like cells. The radioactivity destroys the cancer cells.
How long does it take for thyroid to stop taking up radioactive iodine?
If you have too much iodine in your diet, it can stop the thyroid cells from taking up the radioactive iodine. Continue to follow this diet for 24 hours after your treatment is completed, or as instructed by your doctor. Read the resource for more information.
How long after radioactive iodine therapy can you get pregnant?
Pregnancy and radioactive iodine therapy. Don’t get pregnant or get your partner pregnant for at least 6 months after getting radioactive iodine therapy, or as long as your doctor tells you to. Use birth control after treatment for at least 6 months after getting this treatment.
How to treat thyrotropin alfa?
Your treatment plan will follow these steps that will take place over a few days: 1. On the first day, you’ll have blood tests. After those tests, you’ll see your doctor and get a thyrotropin alfa (Thyrogen ®) injection (shot) to help you get ready for your treatment.
Where does radioactive iodine leave the body?
Most of the extra radioactive iodine will leave your body through your urine (pee), and smaller amounts will leave your body in your saliva (spit), sweat, and bowel movements (poop).
How long before breast cancer treatment can you pump milk?
To prevent having radioactive iodine collect in your breast after your treatment, you’ll need to stop breastfeeding or pumping breast milk at least 6 to 12 weeks before your treatment.
What is the phone number for MSK?
If you're a patient at MSK and you need to reach a provider after 5:00 pm, during the weekend, or on a holiday, call 212-639-2000.
How does RAI work?
RAI is taken by pill – once swallowed, the radioactive iodine gets to work by destroying cancer cells. RAI is usually only considered for those with Stages 2-4 of thyroid cancer, which is considered higher risk. Those at a low risk of recurrence generally do not need RAI. This includes patients:
How long before taking RAI can you stop taking thyroid pills?
A high level of TSH is needed for RAI treatment to be effective. This is why your doctor may instruct you to stop taking your thyroid pills 4-6 weeks before starting RAI treatment. Temporarily stopping your thyroid pills may cause symptoms of hypothyroidism (low thyroid levels).
What is RAI treatment?
Radioactive Iodine treatment (RAI) is a common way to treat differentiated forms of thyroid cancer ( papillary & follicular ). It’s not the type of radiation you may think of when you think of cancer treatment. RAI is taken by pill – once swallowed, the radioactive iodine gets to work by destroying cancer cells.
How long before RAI should I start a diet?
This helps maximize the absorption of the radioactive iodine in your body. It is normally recommended you start on a LID two weeks before RAI.
How long does it take for a RAI to affect taste?
Almost all patients treated with RAI have an altered sense of taste for the first few days or weeks (e.g. food tastes like “Styrofoam”). Infrequently, the effect lasts longer. In some cases, patients experience RAI damage to their salivary glands and/or tear ducts (30%). For most people, the effects are temporary.
How many times do you need to get thyrogen before RAI?
You need to visit your healthcare provider twice to receive Thyrogen® injections in the 2 days before starting RAI. Thyrogen® is associated with mild side effects, if any. Thyrogen® is not covered in all provinces, meaning you may have to pay out of pocket or apply though your private health insurance, if you have it.
Why is soy restricted?
Soy is also restricted because it interferes with RAI. Most patients are advised to stay on a LID for 48 hours after RAI treatment. Since LID meals are usually not available in the hospital, you should bring appropriate foods with you (or have a family member or friend do so).
How long does it take to get a thyroid scan?
Following either of the above approaches to treat a papillary thyroid cancer with RAI, a scan is obtained following the therapeutic dose in 48 to 72 hours to determine the location and percent uptake of the radioactive iodine. The strength of radioactive iodine is described in millicuries. The papillary thyroid cancer treatment dose ...
How long does thyroid cancer last?
Papillary thyroid cancer patients must be taken off of levothyroxine thyroid hormone (T4 hormone) for a minimum of four weeks, taken off of liothyrionine thyroid hormone (T3 hormone) for a minimum of two weeks, or receive a medication which is TSH (which is a pharmaceutical production of the Thyroid Stimulating Hormone [TSH] produced as a recombinant protein which is identical to the TSH normally produced by the pituitary gland). Additionally, papillary thyroid cancer patients must be on a low iodine diet for a minimum of four weeks to starve their body of iodine. Those patients which have undergone CAT scans with intravenous contrast must wait until their blood iodine levels have been adequately decreased (usually at least two months). Note, a desire to treat with radioactive iodine should never prevent the use of necessary CAT scans for the evaluation of a papillary thyroid cancer patient.
What is the uptake study for thyroid cancer?
The thyroid cancer uptake study can be utilized to determine the optimal dose of the radioactive iodine treatment the following day. In a papillary thyroid cancer uptake scan, the image will determine if there is any evidence of iodine uptake in the body. Approximately 90% of patients will have some uptake of iodine following a total thyroidectomy.
What is stimulated thyroglobulin level?
2. Where the papillary thyroid cancer exists in the body and how much of the swallowed dose or radioactive iodine is taken up by the cancer is able to be determined by the nuclear scan. 3.
How soon after thyroidectomy can you give RAI?
RAI can be given as early as 4-5 weeks following total thyroidectomy but can be delayed for months or even years following surgery. The papillary thyroid cancer must have the symporter for iodine and take up iodine to be effective. Papillary thyroid cancers that take up iodine are called iodine avid. Importantly, the ability of a papillary thyroid ...
How is RAI absorbed?
The RAI is absorbed through digestion and circulated throughout the body in bloodstream. Papillary thyroid cancer cells can pick up the radioactive iodine (if the possess the symporter for iodine) wherever they are located in the body. Once taken into the papillary thyroid cancer cells, the radioactive iodine delivers a local radiation treatment in ...
What is the key hole in the thyroid?
We now know today that papillary thyroid cancers can possess a type of key hole on the surface of their cell called a symporter that allows iodine to be taken into the cell. Under normal circumstances, iodine is taken up by normal thyroid cells in the process of producing the body’s thyroid hormone. Although papillary thyroid cancer rarely produces ...
