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Hyperthyroidism, or thyroid thyrotoxicosis, is a pathological condition in which the thyroid gland secretes an excessive amount of thyroid hormones that accelerate metabolism: triiodothyronine (T3) and thyroxine (T4). Endocrinologists at Expert Clinics diagnose and treat hyperthyroidism using modern, highly effective, and completely safe methods.
The hormones produced by the thyroid gland play an important role in key physiological processes. They regulate metabolism, cellular growth and reproduction, and the formation of various organs. These substances also participate in the functioning of the intestines, the respiratory system, and the reproductive system. If these hormones are insufficient, functions “slow down,” and hypothyroidism occurs. If they become excessive, this leads to hyperthyroidism, which results in numerous problems: bone fragility, cardiac disorders, infertility. Failures can occur both in the thyroid gland itself and in the hypothalamus and pituitary gland. Therefore, diagnosis and timely initiation of treatment for hyperthyroidism are so important—this helps prevent or slow the development of irreversible changes in the body and stabilize thyroid function. Call me back
Forms and types of thyrotoxicosis
According to the international classification, there are three degrees of severity of thyrotoxicosis:
Subclinical. Clinical presentation is not pronounced. However, hormonal studies show a decreased TSH level, while T3 and T4 concentrations do not increase.
Manifest. Characterized by a fully developed clinical picture: decreased TSH and elevated T3, T4.
Complicated. At this stage, severe complications are already present (atrial fibrillation, cardiac and adrenal insufficiency, and other changes).
Based on the site of origin, three types of hyperthyroidism are distinguished:
Primary—pathological processes occur in the gland itself,
Secondary—a failure occurs in the function of another endocrine gland, the pituitary, which stimulates the thyroid,
Tertiary—the problems are related to hypothalamic functioning.
There is also a classification by severity of the condition and the prominence of symptoms. It provides for the following forms:
Mild. The patient’s condition is satisfactory. Heart rate up to 100 beats per minute. No marked changes in body mass are observed; it may decrease by no more than 15%.
Moderate. Typical symptoms of the pathology appear. Body mass decreases by 15–35%. Heart rate increases to 120 beats per minute.
Severe. Weight loss is significant: 35% and more. Loss of body mass over 35%. The function of the gastrointestinal tract, heart, and vessels is impaired. Multiple organ failure is observed. There is a high risk of complications such as thyrotoxic crisis and coma.
It is very important to determine the stage and pathogenesis of the disease accurately in order to select the correct treatment regimen and exclude risks and complications.
Causes of the disease
Most often, hyperthyroidism begins to develop as a consequence of thyroid pathologies. Therefore, the main causes include:
Diffuse toxic goiter (Graves’ disease). An autoimmune disorder accompanied by excessive secretion of thyroid hormones. They poison thyroid tissue.
Toxic adenoma. A benign tumor formed by pathological proliferation of glandular cells with clear contours and a distinct capsule. The tumor actively secretes thyroid hormones and has a striking clinical picture.
Nodular/multinodular toxic goiter. The thyroid gland is markedly enlarged, with nodular inclusions present in its structure.
Autoimmune thyroiditis. A chronic thyroid disease in which antibodies begin to attack its cells, leading to inflammation.
Subacute thyroiditis. An infectious disease of the thyroid with thyrocyte destruction, capable of recurring.
Postpartum thyroiditis. Inflammation of the thyroid, a transient disease that develops in a woman within a year after childbirth.
Hyperthyroidism can also be caused by the following diseases:
Pituitary adenoma (tumor of glandular tissue),
Genetic resistance to thyroid hormones T3, T4 (arises due to gene mutations),
Choriocarcinoma (malignant tumor).
There are various forms of hyperthyroidism:
Hyperproduction of thyroid hormones (for example, proliferation of thyroid tissue, resulting in excessive secretion of T3, T4).
Destructive. Develops as a result of destruction of thyroid follicles, which also releases a large amount of thyroid hormone.
Medication-induced. Results from overdose of thyroid hormone preparations.
Let us examine the mechanism of disease onset in more detail using autoimmune thyroiditis as an example. A disorder arises in the body. The human immune system produces antibodies. But the thyroid cells see them not as allies but as enemies. Acting on the hormone-active cells of the thyroid gland, the antibodies cause destructive changes in thyrocytes. From the destroyed follicle, T3 and T4 are released above normal. They begin to poison the entire body. By negative feedback, they act on the pituitary, which in turn secretes a smaller amount of thyroid-stimulating hormone (TSH). Thus, if a large amount of hormones is released from destroyed thyrocytes, hyperthyroidism occurs. If their reserves are depleted, then hypothyroidism occurs.
Main signs of hyperthyroidism
In patients with thyrotoxicosis, due to metabolic disorders, a number of specific symptoms are observed. The clinical picture is as follows:
all metabolic processes accelerate,
body weight decreases, and this does not depend on appetite and the amount of food consumed,
abdominal pain occurs,
diarrhea begins.
In hyperthyroidism the central nervous system suffers, and the following symptoms are associated with this:
anxiety, nervousness,
sleep disturbance,
unstable emotional state, mood swings, conflict-proneness, uncontrolled anger,
involuntary movements of body parts (tremor).
Disorders of cardiac and vascular function are observed:
heart failure (chronic form),
tachycardia,
arrhythmia.
In almost every second case, ophthalmic pathologies are observed:
on downward gaze the upper eyelid lags behind the iris (Kocher sign),
paralysis of the ocular muscles (Graefe sign),
exophthalmos.
Hyperthyroidism of the thyroid gland in women is often accompanied by menstrual cycle disorders. In many men, potency decreases.
Dangerous complications of hyperthyroidism
With elevated thyroid hormone levels, the patient’s quality of life deteriorates. Timely and properly selected treatment makes it possible to control symptoms and avoid complications. But if the disease is neglected, it can provoke dangerous changes in the body that may prove irreversible. Among them:
arrhythmia, heart failure,
multiple organ failure (simultaneous involvement of several systems),
decreased bone density (osteoporosis), bone fragility—increased fracture risk,
endocrine ophthalmopathy—lesion of the orbital soft tissues (Graves’ disease),
dermopathy—atrophic patches on the feet, lower legs, ankles,
thyrotoxic crisis—a severe condition life-threatening to the patient—if medical care is not provided, a fatal outcome is possible.
With complicated forms of hyperthyroidism, the psychoemotional background also becomes unstable.
Diagnostic methods
Hyperthyroidism is diagnosed and treated by an endocrinologist, as well as by an anti-aging medicine physician. The diagnosis is made on the basis of the collected medical history: patient complaints and external manifestations. The diagnostic plan and subsequent treatment depend on the course of the disease, its form, and the duration of symptom manifestation. In most cases, diagnostics include:
blood tests (complete blood count, biochemical panel)—T3 and T4 levels are elevated in hyperthyroidism, TSH concentration is decreased,
ultrasound examination of the thyroid gland—allows detection of nodular and other lesions,
electrocardiography, echocardiography (cardiac ultrasound),
magnetic resonance imaging—allows determination of the size, shape, and structure of the organ.
Treatment of hyperthyroidism at Expert Clinics
Treatment of hyperthyroidism (excessive activity) of the thyroid gland requires a thorough and comprehensive approach. Options for leveling the function of this vital organ may be different:
Conservative treatment involves prescribing thionamides (thiamazole, propicil) to hinder iodine accumulation.
Thyrotoxicosis is often accompanied by involvement of other organs; therefore, symptomatic therapy is very important. For example, in cardiac involvement, β-adrenergic blockers are prescribed.
In severe, prolonged disease with signs of adrenal insufficiency, prednisolone is indicated.
Radioactive iodine therapy. Radiation entering the thyroid reduces it or completely destroys it. Such measures are necessary for patients’ well-being. As for other organs, they are not exposed to iodine.
Surgical intervention is recommended for retrosternal goiter location, as well as when the patient refuses radioactive iodine therapy.
Experienced physicians at Expert Clinics detect signs of hyperthyroidism even at the very earliest stages. After the initial consultation, the physician will prescribe the necessary examinations and, based on the results, will outline the optimal treatment regimen. In more advanced cases, the doctor can organize a medical council with colleagues, including foreign specialists, to determine a comprehensive treatment strategy. Regardless of the stage of the disease, the physicians at Expert Clinics will develop the optimal treatment strategy and achieve a stable result over time.
Prevention
To prevent the development of hyperthyroidism, it is necessary to:
undergo regular examinations by an endocrinologist and have hormone tests,
devise a balanced diet rich in all necessary macro- and micronutrients and vitamins,
control iodine intake,
treat inflammation and other thyroid diseases in a timely manner.
If you have been diagnosed with “hyperthyroidism,” limit physical activity and exertion. Try to avoid stress, observe a reasonable work-rest regimen. Refrain from night shifts. A healthy person is recommended to undergo thyroid ultrasound every 2–3 years. If a pathology has been diagnosed or there is a risk of its development, the examination should be performed more often—once every six months.
Postoperative rehabilitation
In addition to drug therapy, in a number of cases surgical intervention is performed for hyperthyroidism. After removal of the gland or part of it, it is necessary to take analgesics to relieve pain in the neck area. After endotracheal intubation, voice problems often occur—the voice becomes quiet or hoarse. In the postoperative period, it is important for several weeks to avoid emotional stress and heavy physical exertion, not to visit the steam bath and sauna, not to take hot baths, and not to sunbathe in the sun or in a tanning salon. It is necessary to strictly follow the recommendations of the attending physician, including taking drugs for replacement hormone therapy. It is also important to be under constant observation by an endocrinologist.
What should nutrition be in hyperthyroidism?
If the disease has an iodine-induced form, intake of foods rich in iodine should be reduced. According to the physician’s recommendations, seafood, chocolate, coffee, spices, and alcohol are excluded or limited. Caloric intake should be increased by 30%. Foods rich in protein, calcium, and phosphorus are beneficial. Any dietary supplements and vitamins are taken strictly as prescribed by a physician, according to symptomatology: decreased visual acuity, hair loss, etc. Iodine-containing supplements are contraindicated in this diagnosis. After thyroid removal, no special diet is required if the patient is taking hormones and the hormonal background is normal.
You can make an appointment with a physician at Expert Clinics to receive professional consultation and a comprehensive examination, and then, if necessary, treatment, online or by phone. The specialists of our clinic are always happy to help!
Forms and types of thyrotoxicosis
According to the international classification, there are three degrees of severity of thyrotoxicosis:
Subclinical. Clinical presentation is not pronounced. However, hormonal studies show a decreased TSH level, while T3 and T4 concentrations do not increase.
Manifest. Characterized by a fully developed clinical picture: decreased TSH and elevated T3, T4.
Complicated. At this stage, severe complications are already present (atrial fibrillation, cardiac and adrenal insufficiency, and other changes).
Based on the site of origin, three types of hyperthyroidism are distinguished:
Primary—pathological processes occur in the gland itself,
Secondary—a failure occurs in the function of another endocrine gland, the pituitary, which stimulates the thyroid,
Tertiary—the problems are related to hypothalamic functioning.
There is also a classification by severity of the condition and the prominence of symptoms. It provides for the following forms:
Mild. The patient’s condition is satisfactory. Heart rate up to 100 beats per minute. No marked changes in body mass are observed; it may decrease by no more than 15%.
Moderate. Typical symptoms of the pathology appear. Body mass decreases by 15–35%. Heart rate increases to 120 beats per minute.
Severe. Weight loss is significant: 35% and more. Loss of body mass over 35%. The function of the gastrointestinal tract, heart, and vessels is impaired. Multiple organ failure is observed. There is a high risk of complications such as thyrotoxic crisis and coma.
It is very important to determine the stage and pathogenesis of the disease accurately in order to select the correct treatment regimen and exclude risks and complications.
Causes of the disease
Most often, hyperthyroidism begins to develop as a consequence of thyroid pathologies. Therefore, the main causes include:
Diffuse toxic goiter (Graves’ disease). An autoimmune disorder accompanied by excessive secretion of thyroid hormones. They poison thyroid tissue.
Toxic adenoma. A benign tumor formed by pathological proliferation of glandular cells with clear contours and a distinct capsule. The tumor actively secretes thyroid hormones and has a striking clinical picture.
Nodular/multinodular toxic goiter. The thyroid gland is markedly enlarged, with nodular inclusions present in its structure.
Autoimmune thyroiditis. A chronic thyroid disease in which antibodies begin to attack its cells, leading to inflammation.
Subacute thyroiditis. An infectious disease of the thyroid with thyrocyte destruction, capable of recurring.
Postpartum thyroiditis. Inflammation of the thyroid, a transient disease that develops in a woman within a year after childbirth.
Hyperthyroidism can also be caused by the following diseases:
Pituitary adenoma (tumor of glandular tissue),
Genetic resistance to thyroid hormones T3, T4 (arises due to gene mutations),
Choriocarcinoma (malignant tumor).
There are various forms of hyperthyroidism:
Hyperproduction of thyroid hormones (for example, proliferation of thyroid tissue, resulting in excessive secretion of T3, T4).
Destructive. Develops as a result of destruction of thyroid follicles, which also releases a large amount of thyroid hormone.
Medication-induced. Results from overdose of thyroid hormone preparations.
Let us examine the mechanism of disease onset in more detail using autoimmune thyroiditis as an example. A disorder arises in the body. The human immune system produces antibodies. But the thyroid cells see them not as allies but as enemies. Acting on the hormone-active cells of the thyroid gland, the antibodies cause destructive changes in thyrocytes. From the destroyed follicle, T3 and T4 are released above normal. They begin to poison the entire body. By negative feedback, they act on the pituitary, which in turn secretes a smaller amount of thyroid-stimulating hormone (TSH). Thus, if a large amount of hormones is released from destroyed thyrocytes, hyperthyroidism occurs. If their reserves are depleted, then hypothyroidism occurs.
Main signs of hyperthyroidism
In patients with thyrotoxicosis, due to metabolic disorders, a number of specific symptoms are observed. The clinical picture is as follows:
all metabolic processes accelerate,
body weight decreases, and this does not depend on appetite and the amount of food consumed,
abdominal pain occurs,
diarrhea begins.
In hyperthyroidism the central nervous system suffers, and the following symptoms are associated with this:
anxiety, nervousness,
sleep disturbance,
unstable emotional state, mood swings, conflict-proneness, uncontrolled anger,
involuntary movements of body parts (tremor).
Disorders of cardiac and vascular function are observed:
heart failure (chronic form),
tachycardia,
arrhythmia.
In almost every second case, ophthalmic pathologies are observed:
on downward gaze the upper eyelid lags behind the iris (Kocher sign),
paralysis of the ocular muscles (Graefe sign),
exophthalmos.
Hyperthyroidism of the thyroid gland in women is often accompanied by menstrual cycle disorders. In many men, potency decreases.
Dangerous complications of hyperthyroidism
With elevated thyroid hormone levels, the patient’s quality of life deteriorates. Timely and properly selected treatment makes it possible to control symptoms and avoid complications. But if the disease is neglected, it can provoke dangerous changes in the body that may prove irreversible. Among them:
arrhythmia, heart failure,
multiple organ failure (simultaneous involvement of several systems),
decreased bone density (osteoporosis), bone fragility—increased fracture risk,
endocrine ophthalmopathy—lesion of the orbital soft tissues (Graves’ disease),
dermopathy—atrophic patches on the feet, lower legs, ankles,
thyrotoxic crisis—a severe condition life-threatening to the patient—if medical care is not provided, a fatal outcome is possible.
With complicated forms of hyperthyroidism, the psychoemotional background also becomes unstable.
Diagnostic methods
Hyperthyroidism is diagnosed and treated by an endocrinologist, as well as by an anti-aging medicine physician. The diagnosis is made on the basis of the collected medical history: patient complaints and external manifestations. The diagnostic plan and subsequent treatment depend on the course of the disease, its form, and the duration of symptom manifestation. In most cases, diagnostics include:
blood tests (complete blood count, biochemical panel)—T3 and T4 levels are elevated in hyperthyroidism, TSH concentration is decreased,
ultrasound examination of the thyroid gland—allows detection of nodular and other lesions,
electrocardiography, echocardiography (cardiac ultrasound),
magnetic resonance imaging—allows determination of the size, shape, and structure of the organ.
Treatment of hyperthyroidism at Expert Clinics
Treatment of hyperthyroidism (excessive activity) of the thyroid gland requires a thorough and comprehensive approach. Options for leveling the function of this vital organ may be different:
Conservative treatment involves prescribing thionamides (thiamazole, propicil) to hinder iodine accumulation.
Thyrotoxicosis is often accompanied by involvement of other organs; therefore, symptomatic therapy is very important. For example, in cardiac involvement, β-adrenergic blockers are prescribed.
In severe, prolonged disease with signs of adrenal insufficiency, prednisolone is indicated.
Radioactive iodine therapy. Radiation entering the thyroid reduces it or completely destroys it. Such measures are necessary for patients’ well-being. As for other organs, they are not exposed to iodine.
Surgical intervention is recommended for retrosternal goiter location, as well as when the patient refuses radioactive iodine therapy.
Experienced physicians at Expert Clinics detect signs of hyperthyroidism even at the very earliest stages. After the initial consultation, the physician will prescribe the necessary examinations and, based on the results, will outline the optimal treatment regimen. In more advanced cases, the doctor can organize a medical council with colleagues, including foreign specialists, to determine a comprehensive treatment strategy. Regardless of the stage of the disease, the physicians at Expert Clinics will develop the optimal treatment strategy and achieve a stable result over time.
Prevention
To prevent the development of hyperthyroidism, it is necessary to:
undergo regular examinations by an endocrinologist and have hormone tests,
devise a balanced diet rich in all necessary macro- and micronutrients and vitamins,
control iodine intake,
treat inflammation and other thyroid diseases in a timely manner.
If you have been diagnosed with “hyperthyroidism,” limit physical activity and exertion. Try to avoid stress, observe a reasonable work-rest regimen. Refrain from night shifts. A healthy person is recommended to undergo thyroid ultrasound every 2–3 years. If a pathology has been diagnosed or there is a risk of its development, the examination should be performed more often—once every six months.
Postoperative rehabilitation
In addition to drug therapy, in a number of cases surgical intervention is performed for hyperthyroidism. After removal of the gland or part of it, it is necessary to take analgesics to relieve pain in the neck area. After endotracheal intubation, voice problems often occur—the voice becomes quiet or hoarse. In the postoperative period, it is important for several weeks to avoid emotional stress and heavy physical exertion, not to visit the steam bath and sauna, not to take hot baths, and not to sunbathe in the sun or in a tanning salon. It is necessary to strictly follow the recommendations of the attending physician, including taking drugs for replacement hormone therapy. It is also important to be under constant observation by an endocrinologist.
What should nutrition be in hyperthyroidism?
If the disease has an iodine-induced form, intake of foods rich in iodine should be reduced. According to the physician’s recommendations, seafood, chocolate, coffee, spices, and alcohol are excluded or limited. Caloric intake should be increased by 30%. Foods rich in protein, calcium, and phosphorus are beneficial. Any dietary supplements and vitamins are taken strictly as prescribed by a physician, according to symptomatology: decreased visual acuity, hair loss, etc. Iodine-containing supplements are contraindicated in this diagnosis. After thyroid removal, no special diet is required if the patient is taking hormones and the hormonal background is normal.
You can make an appointment with a physician at Expert Clinics to receive professional consultation and a comprehensive examination, and then, if necessary, treatment, online or by phone. The specialists of our clinic are always happy to help!
+7 (495) 154-21-44 
admin@expertclinics.ru 
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