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Hyperthyroidism is the excessive production of thyroid hormones defined. This condition leads to several physiological effects that can alter the outward appearance of a patient with hyperthyroidism. Thyroid hormone regulates the metabolism of the body and most of this ability is manifested in power made in cases of hyperthyroidism.

In patients with hyperthyroidism usually have thyroid

that two to three times larger than a normal thyroid. These glands are hyperthyroidism increases cell proliferation and cell population inversion of the wall of the follicle cells in the follicle, even further increases. These cells also secrete hyperthyroidism thyroid at a higher rate than normal cells of the thyroid.

These changes can also be places where there be a large amount of circulating thyroid-stimulating hormone (TSH) in the body. However, in hyperthyroidism, TSH is decreased due to the inhibition of secretion of the amount already elevated thyroid hormones circulating in the body. Under normal conditions, an increase of thyroid hormone signals the pituitary gland secretes TSH, and thus to stop the thyroid stops secreting thyroid hormones by the lack of recovery by the fall in TSH. It’s not as in hyperthyroidism

In hyperthyroidism, a substance similar to the TSH can be found in the circulation -. Thyroid-stimulating immunoglobulins or TSI. They have a longer stimulatory effect on the thyroid gland and causes the cells of the thyroid, despite the continued decrease in the secretion of TSH.

Another cause of hyperthyroidism, the presence of a thyroid adenoma or a tumor in the thyroid tissue that secretes increased amounts of thyroid hormone uncontrollably. To stop cells in the surrounding normal thyroid hormone secreting tumors due to a decrease in TSH, but the tumor continued to secrete thyroid hormone itself. This case has no association with autoimmune diseases.

hyperthyroidism from a state of great agitation, heat intolerance is characterized, increased sweating, shaking, moderate to extreme weight loss, diarrhea, muscle weakness, nervousness, extreme fatigue, but the inability to sleep, and hands.

Another symptom is exophthalmos of hyperthyroidism, in which protrusion of the eyeball it. In severe cases, the degree of projection is so large that it extends from the optic nerve enough to cause damage. The eyeballs also not completely close during sleep or at the sight of patients, causing further damage to the eyes.

hyperthyroidism is usually diagnosed on the basis of the circulating plasma levels of free thyroxine by radioimmunoassay method. .

Increasing the metabolic rate of patients 30-60 in: In some cases, the measurement of triiodothyronine in the balance sheet

Other tests or signs that indicate hyperthyroidism also contain serious cases of hyperthyroidism. Decrease in TSH concentration in plasma. This is because the body tries to excessive secretion of thyroid hormones by stimulating the removal of his usual control. In the usual type of thyrotoxicosis, there is very little plasma TSH left. Measuring levels of the ITS to discriminate between thyrotoxicosis. STI levels are increased normally in cases of hyperthyroidism, but lower in thyroid adenoma.

surgical removal of most of the thyroid gland is the direct treatment of hyperthyroidism. Before surgery, the patient is initially administered in reduced doses of propylthiouracil, hormone function to the patient’s return to normal metabolism. Then high doses of iodide are administered immediately before surgery for 1-2 weeks, thus reducing the size of the gland and the blood supply to decrease. These procedures have reduced the operative mortality to 1 in 1000 operations from 1 to 25, before the development of modern methods.

a hyperplastic thyroid can be treated with radioactive iodine in other cases of hyperthyroidism. Eighty to ninety percent of the injected iodine is absorbed by the hyperplasia. Since iodine is radioactive, it destroyed almost all the secretory cells of the thyroid. In general, the patient is administered with 5 millicuries of radioactive iodine and evaluated several weeks later. If the patient is hyperthyroid, given additional doses until the normal function of the thyroid restored.