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Retrosternal thyroid surgery

Substernalthyroid - surgery; Mediastinal goiter - surgery

The thyroid gland is normally located at the front of the neck. A retrosternal thyroid refers to the abnormal location of all or part of the thyroid gland below the breastbone (sternum).

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Description

A retrosternal goiter is always a consideration in people who have a mass sticking out of the neck. A retrosternal goiter often causes no symptoms for years. It is often detected when a chest x-ray or CT scan is done for another reason. Any symptoms are usually due to pressure on nearby structures, such as the windpipe (trachea) and swallowing tube (esophagus).

Surgery to completely remove the goiter may be recommended, even if you do not have symptoms.

During the surgery:

• You receive general anesthesia. This makes you asleep and unable to feel pain.
• You lie on your back with your neck slightly extended.
• The surgeon makes a cut (incision) in the front of your lower neck just above the collar bones to determine if the mass can be removed without opening the chest. Most of the time, the surgery can be done this way.
• If the mass is deep inside the chest, the surgeon makes an incision along the middle of your chest bone. The entire goiter is then removed.
• A tube may be left in place to drain fluid and blood. It is usually removed in 1 to 2 days.
• The incisions are closed with stitches (sutures).

Why the Procedure is Performed

This surgery is done to completely remove the mass. If it is not removed, it can put pressure on your trachea and esophagus.

If the retrosternal goiter has been there for a long time, you can have difficulty in swallowing food, mild pain in the neck area, or shortness of breath.

Risks

Risks of anesthesia and surgery in general are:

• Reactions to medicines
• Breathing problems
• Bleeding, blood clots, infection

Risks of retrosternal thyroid surgery are:

• Damage to parathyroid glands (small glands near the thyroid) or to their blood supply, resulting in low calcium
• Damage to the trachea
• Perforation of the esophagus
• Vocal cord injury

Before the Procedure

During the weeks before your surgery:

• You may need to have tests that show exactly where your thyroid gland is located. This will help the surgeon find the thyroid during surgery. You may have a CT scan, ultrasound, or other imaging tests.
• You may also need thyroid medicine or iodine treatments 1 to 2 weeks before surgery.

Tell your provider about all the medicines you take, even those bought without a prescription. This includes herbs and supplements.

Several days to a week before surgery:

• You may be asked to temporarily stop taking blood-thinning medicines. These include aspirin, ibuprofen (Advil), naproxen (Aleve), clopidogrel (Plavix), warfarin (Coumadin), among others.
• Fill any prescriptions for pain medicine and calcium you will need after surgery.
• Tell your provider about all the medicines you take, even those bought without a prescription. This includes herbs and supplements. Ask your provider which medicines you should still take on the day of surgery.
• If you smoke, try to stop. Ask your provider for help.

On the day of surgery:

• Follow instructions about when to stop eating and drinking.
• Take any medicines that your provider told you to take with a small sip of water.
• Be sure to arrive at the hospital on time.

After the Procedure

You may need to stay in the hospital overnight after surgery so you can be watched for any bleeding, change in calcium level, or breathing problems.

You may go home the next day if the surgery was done through the neck. If the chest was opened up, you may stay in hospital for several days.

You will likely be able to get up and walk on the day of or day after surgery. It should take about 4 to 6 weeks for you to fully recover.

You may have pain after surgery. Ask your provider for instructions on how to take pain medicines after you go home.

Follow any instructions for taking care of yourself after you go home.

Outlook (Prognosis)

Outcome of this surgery is usually excellent. Most people need to take thyroid hormone pills (thyroid hormone replacement) for the rest of their lives when the whole gland is removed.

References

Kaplan EL, Angelos P, James BC, Nagar S, Grogan RH. Surgery of the thyroid. In: Jameson JL, De Groot LJ, de Kretser DM, et al, eds. Endocrinology: Adult and Pediatric. 7th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 96.

Suh I, Sosa JA. Thyroid. In: Townsend CM Jr, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 21st ed. St Louis, MO: Elsevier; 2022:chap 37.

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Review Date: 2/28/2022  

Reviewed By: Debra G. Wechter, MD, FACS, General Surgery Practice Specializing in Breast Cancer, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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