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Thyroid Surgery

Surgery Overview

Thyroid surgery is used to treat thyroid nodules, thyroid cancer, and hyperthyroidism. During this procedure, part or all of the thyroid gland is removed.

During surgery, an incision is made in the skin. The muscle and other tissues are pulled aside to expose the thyroid gland.

What To Expect

Many people leave the hospital a day or two after surgery. How much time you spend in the hospital and how fast you recover depend on your age and general health, the extent of the surgery, and whether cancer is present.

Why It Is Done

Surgery is used to treat thyroid problems if:

  • Thyroid cancer is present or is suspected.
  • A noncancerous (benign) nodule is large enough to cause problems with breathing or swallowing.
  • A fluid-filled (cystic) nodule returns after being drained once or twice.
  • Hyperthyroidism cannot be treated with medicines or radioactive iodine.

Surgery is rarely used to treat hyperthyroidism. It may be used if the thyroid gland is so big that it makes swallowing or breathing difficult or thyroid cancer has been diagnosed or is suspected. Surgery also may be done if you are pregnant or cannot tolerate antithyroid medicines.

You may have all or part of your thyroid gland removed, depending on the reason for the surgery.

  • Total thyroidectomy. Your surgeon will remove the entire gland and the lymph nodes surrounding the gland. Both sections (lobes) of the thyroid gland are usually removed. If you have thyroid cancer, additional treatments with thyroid-stimulating hormone (TSH) suppression and radioactive iodine work best when as much of the thyroid is removed as possible.
  • Thyroid lobectomy with or without an isthmectomy. If your thyroid nodules are located in one lobe, your surgeon will remove only that lobe (lobectomy). With an isthmectomy, the narrow band of tissue (isthmus) that connects the two lobes also is removed. After the surgery, your nodule will be examined under a microscope to see whether there are any cancer cells. If there are cancer cells, your surgeon may perform a complete thyroidectomy.
  • Subtotal (near-total) thyroidectomy. Your surgeon will remove one complete lobe, the isthmus, and part of the other lobe. This is used for hyperthyroidism caused by Graves' disease.

Some surgeons are now doing endoscopic thyroidectomies using several small incisions through which a tiny camera and instruments are passed.

How Well It Works

Success of a thyroidectomy to remove thyroid cancer depends on the type of cancer and whether it has spread (metastasized) to other parts of the body. You may need follow-up treatment to help prevent the cancer from returning or to treat cancer that has spread.

If a large noncancerous (benign) nodule causes symptoms, such as pain or problems breathing or swallowing, surgery may help relieve symptoms. All or part of the thyroid gland may be removed. Surgery may also help relieve symptoms if other treatments, such as draining a noncancerous nodule filled with fluid (cyst), have not worked. Surgery may also be an effective treatment if you have a thyroid nodule that makes too much thyroid hormone.

Risks

Thyroid surgery is generally a safe surgery. But there is a risk of complications, including:

  • Hoarseness and change of voice. The nerves that control your voice can be damaged during thyroid surgery. This is less common if your surgeon has a lot of experience or if you are having a lobectomy rather than a total thyroidectomy.
  • Hypoparathyroidism . Hypoparathyroidism can occur if the parathyroid glands are mistakenly removed or damaged during a total thyroidectomy. This is not as common if you have a lobectomy.

What To Think About

If you have a total thyroidectomy, you will develop hypothyroidism and need to take man-made (synthetic) thyroid hormone for the rest of your life. If you have a lobectomy or subtotal thyroidectomy, you may have hypothyroidism and you may need to take thyroid medicine for the rest of your life.

You will most likely be treated with radioactive iodine after surgery for thyroid cancer to make sure that all the thyroid tissue and cancer cells are gone.

You may have a lobectomy, with or without isthmectomy, if your doctor suspects that a nodule may be cancerous. If you do have cancer, a surgeon usually will do a complete thyroidectomy.

After surgery for hyperthyroidism, some people will have low calcium levels and may need to take calcium supplements.

Credits

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Kathleen Romito, MD - Family Medicine
Matthew I. Kim, MD - Endocrinology, Diabetes and Metabolism
Kenneth Bark, MD - General Surgery, Colon and Rectal Surgery

Current as ofMarch 15, 2018


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