Hyperthyroidism is a condition in which the thyroid gland secretes excessive amounts of thyroid hormone, which causes an accelerated metabolism and other health problems. In this article, we will look at the causes, symptoms, diagnosis and treatment options of hyperthyroidism to help you better understand the disease and how to live with it.

What is hyperthyroidism?

Hyperthyroidism, or overactive thyroid, is a condition in which the thyroid gland produces excessive amounts of the hormones thyroxine (T4) and triiodothyronine (T3). These hormones control metabolic rate and affect many body functions, such as heart rate, body temperature, and nervous system function. Elevated hormone levels can cause an accelerated metabolism, which in turn contributes to various symptoms and complications.

Hyperthyroidism is relatively common, especially in women between the ages of 20 and 40. Without treatment, hyperthyroidism can cause serious complications, so it is important to make a timely diagnosis and take the necessary measures.

The role of the thyroid gland in the body

The thyroid gland is a butterfly-shaped gland located at the front of the neck, just below the area known as the Adam's apple in men. In women, this area is not as pronounced as in men, but the thyroid gland is located in the same place. It produces two main hormones - thyroxine (T4) and triiodothyronine (T3) - which are responsible for energy production and balance in the body's cells. These hormones regulate metabolism, body temperature, heartbeat, nervous system functions and even digestion. The thyroid gland is essential in maintaining the body's overall health and well-being, and hormonal disruptions can have a wide range of negative effects.

Types of hypothyroidism

There are several types of hyperthyroidism, depending on what causes the thyroid gland to become overactive:

1. Graves' disease: Graves' disease is the most common cause of hyperthyroidism. It is an autoimmune disease in which the immune system attacks the thyroid gland, causing it to overproduce hormones.
2. Goiter: in this case, one or more nodules develop in the thyroid gland, which produce excessive amounts of hormones, regardless of the body's needs. The presence of nodules can cause a variety of symptoms, such as rapid heart rate, sweating, and nervousness. The development of goiter is often associated with iodine deficiency or genetic predisposition. Diagnosis and regular monitoring are essential to prevent possible complications.
3. Adenoma: An adenoma is a single nodule in the thyroid gland that produces excessive amounts of hormones, causing hyperthyroidism. These types of nodules are usually benign tumors that can gradually increase in size, causing increased production of thyroid hormones. Accurate diagnosis and monitoring of the adenoma is essential to determine the need for treatment and avoid potential complications.
4. Subacute thyroiditis: Inflammation of the thyroid gland caused by a viral infection can cause temporary hyperthyroidism because the inflamed gland temporarily secretes large amounts of hormones.

Causes and risk factors of hypothyroidism

Causes of hyperthyroidism include genetic predisposition, autoimmune diseases such as Graves' disease, and fluctuations in iodine levels. Women between the ages of 20 and 40 are most at risk.

• Genetic predisposition: Hyperthyroidism is often associated with a family history, and people with close relatives who have had the disease are at increased risk.
• Autoimmune diseases: Graves' disease, the main cause of hyperthyroidism, is an autoimmune disease in which the immune system mistakenly attacks the thyroid gland.
• Iodine intake: Both excess and deficiency of iodine can cause thyroid disorders. Especially excessive amounts of iodine in the diet can cause hyperthyroidism in people who have a genetic predisposition.
• Sex and age: Women are more at risk of hyperthyroidism than men, and the disease is more common in people between the ages of 20 and 40.

What are the symptoms of hyperthyroidism?

Symptoms of hyperthyroidism can vary and often reflect an accelerated metabolism. Symptoms can include both physical changes and emotional signs, such as a fast heart rate, increased sweating, weight loss, fatigue, tremors, and nervousness. These symptoms are caused by hormonal imbalances and can affect different aspects of the body. Some of the more common symptoms include:

• Rapid heartbeat: Persistent tachycardia, palpitations, and rapid heart rate that cause concern and discomfort.
• Excessive sweating and heat intolerance: People with hyperthyroidism often experience a constant feeling of warmth and sweating.
• Weight loss: despite normal or even increased food intake, patients lose weight.
• Fatigue and muscle weakness: Hormonal imbalances can cause fatigue and loss of muscle strength, especially in the thighs and shoulders.
• Nervousness and anxiety: Increased hormone levels can affect mood, causing anxiety, restlessness and irritability.
• Tremor: A slight tremor of the hands, fingers or even the body is a common symptom of hyperthyroidism.
• Menstrual disorders: Women may experience menstrual disturbances, such as less frequent or less heavy periods.
• Changes in skin and hair: the skin may become thin and sensitive, while the hair becomes thin and brittle.

Diagnosis of hyperthyroidism

In the diagnosis of hyperthyroidism, several tests are used to confirm the diagnosis and determine the cause of the disease. In the diagnostic process, the doctor begins with a thorough evaluation of the patient's symptoms and a physical examination for signs of hyperthyroidism, such as a fast heart rate, bulging eyes, or an enlarged thyroid gland (goiter).

In addition, blood tests are performed to determine the levels of thyroid hormones (T3 and T4) as well as thyroid-stimulating hormone (TSH). In hyperthyroidism, TSH is usually decreased, while T3 and T4 are elevated. In addition to blood tests, a radioactive iodine uptake test is performed, which helps determine thyroid activity and differentiate between different types of hyperthyroidism. Ultrasound examinations and scintigraphy are also useful in determining the presence and activity of thyroid nodules.

The combination of all these tests allows doctors to get a complete picture of the course of the disease and choose the most suitable treatment.

• Blood tests: Blood levels of thyroid hormones (T3 and T4) and thyroid-stimulating hormone (TSH) are checked. Usually, in case of hyperthyroidism, TSH level is decreased (below 0.4 mIU/L), but T3 (above 200 ng/dL) and T4 (above 12 µg/dL) are elevated.
• Radioactive iodine uptake test: this test measures how much radioactive iodine is taken up by the thyroid gland. High iodine intake indicates Graves' disease or goiter.
• Thyroid ultrasound: an ultrasound examination helps determine the size of the thyroid gland and the presence of nodules, which may be the cause of hyperthyroidism.
• Scintigraphy: this diagnostic method helps to visualize the functioning of the thyroid gland and determine which nodes are active and which are not.

It is definitely recommended to discuss the results of blood tests and examinations with an endocrinologist, family doctor, to ensure a quality approach to treatment.

What are the complications of hyperthyroidism?

Untreated hyperthyroidism can cause serious complications that significantly affect health:

• Heart problems: Hyperthyroidism can cause serious cardiovascular problems, including a fast heartbeat (tachycardia), irregular heart rhythm (arrhythmia), and heart failure. Hyperthyroidism can also raise blood pressure, increasing the risk of heart attack and stroke.
• Loss of bone mass (osteoporosis): Thyroid hormones affect calcium and phosphorus metabolism. As a result of long-term elevated hormone levels, bones can lose their density, increasing the risk of fractures.
• Muscle weakness: under the influence of increased hormone levels, the muscles can become weaker, especially the muscles of the thighs and shoulders, which can make daily activities difficult.
• Eye problems: Patients with Graves' disease may experience eye problems such as bulging of the eye (exophthalmos), which causes dryness, irritation and blurred vision. In severe cases, it can cause vision loss.
• Psychoemotional problems: Hyperthyroidism can cause anxiety, restlessness, irritability and even depression. Treatment is essential to prevent mood swings and other psychoemotional problems.

Treatment and control of hyperthyroidism

The treatment of hyperthyroidism depends on the cause of the disease, the age of the patient, the severity of the symptoms and other factors. Treatment options include:

• Radioactive iodine: This method is popular for treating hyperthyroidism and uses radioactive iodine to destroy overactive thyroid cells. After this therapy, thyroid function is often too low and patients may need hormone replacement therapy.

It is important to consult an endocrinologist or family doctor if symptoms of hyperthyroidism appear or if thyroid disorders are suspected. The doctor will be able to examine the examinations performed by the patient, as well as help to choose the most appropriate treatment methods.

Lifestyle recommendations for hyperthyroid patients

• Healthy diet: it is recommended to include products in the diet that contribute to the balance of the body. Avoid excessive iodine intake, which can worsen symptoms of hyperthyroidism. Choose a balanced diet with sufficient protein and vitamins.
• Regular physical activities: physical activity helps to reduce stress and maintain a healthy heart, but excessive exercise should be avoided, especially if symptoms are severe.
• Stress management: Symptoms of hyperthyroidism, such as anxiety and irritability, may increase under stressful conditions. Therefore, it is important to use stress management techniques such as meditation, yoga or breathing exercises.
• Regular check-ups: it is essential for patients with hyperthyroidism to see their doctor regularly to monitor hormone levels and adjust treatment as needed.

Hypothyroidism prevention

Although it is not always possible to prevent hyperthyroidism, regular check-ups are definitely recommended, especially if there is a family history of thyroid health problems.

Life with hypertireozi

Living with hyperthyroidism requires adaptation by seeking emotional support, educating yourself about the disease, and working with your doctors to improve your health and quality of life.

Emotional support

Living with hyperthyroidism can be challenging because the disease affects not only physical health, but also emotional health. It is important to:

• Seek support: talk to family, friends, or join support groups.
• Educate yourself: knowledge about the disease helps to better maintain and improve your health, reduce symptoms and complications.
• Consult with specialists: endocrinologist, nutritionist and mental health professionals like psychologist, psychotherapist can be very helpful.

Conclusion

Hyperthyroidism is a serious disease that can cause various complications if not diagnosed and treated in time. However, with the right treatment and lifestyle adjustments, it is possible to control the symptoms of the disease and improve the quality of life. It is important to be informed about your health condition and actively participate in the treatment process, cooperating with specialists and following their recommendations.

Additional materials

• Gita Erta: Thyroid underfunction or hypothyroidism(Source: arsts.lv)
• Una Gailiša: The thyroid gland and its diseases (Source: arsts.lv)
• Thyroid dysfunction in psychiatric practice (Source: Doctus)