Hyperthyroidism is an endocrine disorder that can cause many issues, including high blood pressure. Treating hyperthyroidism may help to regulate a person’s blood pressure.
Untreated hyperthyroidism can lead to thyroid storm, a life threatening and rare complication that
Read on to learn more about the connection between hyperthyroidism and high blood pressure.
When a person has too much thyroid hormone, it tends to speed up many bodily functions, including metabolism and heart rate. This can lead to high blood pressure.
Hyperthyroidism can increase cardiac output. This may elevate a person’s heart rate and systolic blood pressure. Systolic blood pressure is the top number in a blood pressure reading and records the pressure when the heart contracts.
Hyperthyroidism also relaxes the blood vessels. This can
The thyroid is a butterfly-shaped gland in the neck. It produces thyroid hormone, which plays an important role in metabolism, including how the body uses nutrients such as sodium. Thyroid hormone levels can also affect heart function.
Untreated hyperthyroidism is not usually immediately dangerous. However, over time, it can damage the heart. It can also cause a life threatening complication called thyroid storm.
The autoimmune condition Graves’ disease is the most
High blood pressure
Additionally, a person
Risks for hyperthyroidism
- Graves’ disease
- taking too much thyroid medication
- a growth on the thyroid
- too much iodine in the diet
- inflammation in the thyroid
Some people with hyperthyroidism develop a growth in the neck due to an enlarged thyroid gland, known as a goiter.
Hyperthyroidism is a risk factor for high blood pressure. However, having high blood pressure with hyperthyroidism does not necessarily mean thyroid disease is causing hypertension.
Some other risk factors for high blood pressure
Treating hyperthyroidism often, but not always, cures high blood pressure. Treatment depends on the cause of hyperthyroidism, but the ultimate goal is to reduce the amount of thyroid hormone in the bloodstream.
Some treatment options
- reducing thyroid hormone medication or eliminating it until numbers stabilize
- using drugs to control anxiety, high blood pressure, and heart palpitations, such as beta-blockers
- ongoing monitoring if a person has a temporary form of hyperthyroidism
After giving birth, some people may develop thyroiditis, which can cause hyperthyroidism. Temporary forms of hyperthyroidism do not usually require treatment. Instead, a doctor may recommend treatments to manage symptoms. For example, a doctor might prescribe a beta-blocker to help with anxiety.
If treatment to manage symptoms does not work, if a person’s symptoms are very severe, or their thyroid levels are very high, a doctor may recommend treatment to prevent the thyroid from continuing to secrete high thyroid hormone levels. Options include:
- radioactive iodine therapy
- surgery to remove the thyroid, called a thyroidectomy
- thionamide therapy
These treatments may cause a person to develop hypothyroidism. This means they will need to take supplemental thyroid hormone. A doctor will need to monitor their thyroid levels to ensure they are neither too high nor too low.
If blood pressure does not improve, a person may need additional treatment. This may include beta-blockers or other medications. Lifestyle changes such as a low sodium diet
A person should contact a doctor if they have consistently high blood pressure readings or a sudden unexplained change in blood pressure. It is also important to contact a doctor when an individual:
- is undergoing therapy for hypothyroidism and develops symptoms of hyperthyroidism
- develops new hyperthyroidism symptoms
- feels chronically anxious, restless, or unable to sleep
- has a rapid heart rate
- develops hypothyroidism symptoms, such as low energy and feeling chronically cold, following treatment for hyperthyroidism
Untreated thyroid disease is a risk factor for heart disease. People with hyperthyroidism may develop high blood pressure, especially elevated systolic blood pressure. However, as high blood pressure is common, not all cases are due to thyroid disease.
People with high blood pressure and hyperthyroidism should consult a doctor to explore treatment options. Even after treating hyperthyroidism, they may still need to treat high blood pressure.