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Ablation therapy is a type of treatment that kills cancer cells. There are 2 main types of ablation therapy used to treat kidney cancer. They’re both done by putting a needle into an area of cancer cells. This is a less-invasive treatment that causes less bleeding. It also keeps the side effects to a small area of the body. Radiofrequency ablation (RFA) uses energy waves to kill cancer cells. Cryoablation uses extreme cold to kill cancer cells.
Ablation therapy is a newer treatment for kidney cancer. It is not yet clear how well it compares with surgery. Insurance companies may need preapproval for this kind of treatment.
RFA uses a needle that sends energy waves into a tumor to kill cancer cells. Your doctor may advise RFA if 1 or more of the below applies to you:
You have 1 or more kidney tumors.
You have only 1 kidney.
Your other kidney is not working well.
You have other health conditions that make you unable to have surgery.
You are an older adult and surgery would be too difficult for you.
Your tumor is small.
The cancer is on the kidney's surface and not to close to other organs.
The cancer has spread to other organs, such as your lungs or liver.
You have a cancer that has come back, or you have more than 1 kidney tumor.
You have a family history of multiple kidney tumors.
You will have surgery, but need RFA to treat the tumor area to help prevent excess bleeding during surgery.
Cryoablation uses a needle to send extreme cold to an area of cancer cells. Your health care provider may advise cryoablation if 1 or more of the below applies to you:
Your tumor is smaller.
You have only 1 kidney and you need to keep your kidney.
All procedures have risks. The risks of ablation therapy include:
Pain after the procedure that requires pain medicine
Infection at the site where the needle is put into the body
Damage to the treated kidney
Contact with radiation, depending on the type of imaging used during the procedure
Talk with your health care provider about which risks apply most to you.
Your health care provider will likely do blood tests to make sure that your blood clots normally and to see how well your liver and kidneys are working.
Tell your health care provider about all the medicines, herbs, and supplements you are taking. He or she may recommend that you stop using some of these for a time before the procedure. These kinds of medicines include blood thinners, aspirin, and other nonsteroidal anti-inflammatory medicines, such as ibuprofen.
Tell your health care provider about any allergies that you may have. This includes allergies to anesthesia or contrast dye.
Tell your health care provider if you are or might be pregnant.
Your health care provider will tell you not to eat or drink anything starting the night before the treatment.
Arrange for someone to drive you home after the procedure.
This procedure will be done by an interventional radiologist. This is a health care provider with special training. He or she will work with your urologist during your treatment. The procedure may follow these basic steps:
You will be given a gown to wear. You will lie on an exam table.
Your blood pressure, heart rate, and pulse might be tracked on monitors during the procedure.
If anesthesia is needed, the nurse will put an IV line in your arm or hand in order to give you this medicine.
Your health care provider will clean the area where the ablation will take place. You will be injected with a medicine that numbs the area (local anesthetic).
A small cut will be made in your skin. The needle will be inserted here. In some cases, the health care provider may need to make more than 1 cut.
The health care provider will use imaging to help guide the needle to the tumor. This may be done with a CT scan, MRI, or ultrasound.
For RFA, a high-frequency electrical current will be sent through the needle to kill the cancer cells. Your health care provider may need to do this at more than 1 site. For cryoablation, the needle’s tip will release a very cold gas to freeze the tumor and kill the tumor cells.
At the end of the procedure, the needle is removed. The skin is covered with a bandage.
The procedure takes 1 to 3 hours. You will likely be able to go home the same day. You may have mild pain or nausea. Your health care provider may treat these with medicines.
You can go back to normal activity after a few days. Talk with your health care provider if you have any problems after the procedure.
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