Conflicting Advice on Thyroid Medication After Partial Thyroidectomy - Internal Medicine

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I have a big question~~~


Hello, Dr.
Yang.
I would like to ask about my situation.
I have a malignant thyroid tumor, so I had half of my thyroid removed (please don't scold me for not having the entire thyroid removed).
Although only half was removed, the endocrinologist said I still need to take medication, while the surgeon (an ENT specialist) said I wouldn't need medication after the surgery.
Why are there conflicting opinions? I also find it strange that the remaining half of my thyroid still has some function; why do I need to take thyroid medication? Is it absolutely necessary to take this medication?

yue, 20~29 year old female. Ask Date: 2005/04/03

Dr. Yang Hongzhi reply Internal Medicine


Hello: Removing half of the thyroid should not lead to post-operative thyroid insufficiency.
The supplementation of thyroid hormones is intended to suppress the secretion of thyroid-stimulating hormone (TSH).
If there are residual cancer cells, inhibiting TSH can reduce stimulation to those cancer cells.

Reply Date: 2005/04/03

More Info


After undergoing a partial thyroidectomy due to a malignant thyroid tumor, it is understandable to feel confused about the differing opinions regarding the necessity of thyroid medication. The situation you described is not uncommon, as different specialists may have varying perspectives based on their areas of expertise and the specific circumstances of your case.

Firstly, it is essential to recognize that the thyroid gland plays a crucial role in regulating metabolism, energy levels, and overall hormonal balance in the body. When a portion of the thyroid is removed, the remaining thyroid tissue may not produce sufficient hormones to meet the body's needs, especially if the remaining thyroid is not functioning optimally. This is particularly relevant in your case, where the surgery was performed due to malignancy, which may have affected the gland's functionality.

The endocrinologist's recommendation to take thyroid medication is likely based on the understanding that even if some thyroid tissue remains, it may not produce enough thyroid hormones (such as T4 and T3) to maintain normal metabolic function. Thyroid hormone replacement therapy, typically with levothyroxine (like Eltroxin or Synthroid), is often prescribed to ensure that the body receives adequate levels of thyroid hormones. This is especially important to prevent symptoms of hypothyroidism, which can include fatigue, weight gain, depression, and difficulty concentrating.

On the other hand, the ENT surgeon may have a different perspective, possibly believing that the remaining thyroid tissue is sufficient to maintain normal hormone levels, especially if your thyroid function tests (like TSH, T4, and T3) are within normal ranges post-surgery. It is also possible that the surgeon is considering the immediate post-operative period, where the body may still be adjusting to the changes following surgery.

To address your concerns, here are a few points to consider:
1. Thyroid Function Tests: It is crucial to monitor your thyroid function through regular blood tests. These tests can help determine whether your remaining thyroid tissue is producing enough hormones. If your TSH levels are elevated, it may indicate that your body is not receiving enough thyroid hormone, suggesting that medication may be necessary.

2. Symptoms of Hypothyroidism: Pay attention to any symptoms you may experience, such as fatigue, weight changes, or mood fluctuations. If you notice any of these symptoms, it may be a sign that your thyroid hormone levels are insufficient.

3. Consultation with Specialists: It may be beneficial to have a detailed discussion with both your endocrinologist and the surgeon. You could ask for clarification on their recommendations and the rationale behind them. If necessary, consider seeking a third opinion from another endocrinologist who specializes in thyroid disorders.

4. Individualized Treatment: Ultimately, the decision to start or continue thyroid medication should be based on your individual health status, thyroid function tests, and symptoms. If your endocrinologist believes that medication is necessary to optimize your health, it is essential to consider their advice seriously.

In conclusion, while it may seem contradictory that one doctor recommends medication and another does not, the underlying goal is to ensure your health and well-being post-surgery. Regular monitoring and open communication with your healthcare providers will be key in managing your thyroid health effectively.

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