hyperthyroidism

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Related to hyperthyroid: hypothyroid, Graves disease

hyperthyroidism:

see thyroid glandthyroid gland,
endocrine gland, situated in the neck, that secretes hormones necessary for growth and proper metabolism. It consists of two lobes connected by a narrow segment called the isthmus. The lobes lie on either side of the trachea, the isthmus in front of it.
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Hyperthyroidism

 

an increase in the function of the thyroid gland. Hyperthyroidism is one of the manifestations of a toxic diffuse goiter. It usually arises as a result of psychic trauma and sometimes with certain diseases and conditions, such as tuberculosis, rheumatism, or pregnancy. More rarely it is the result of an infection. It is manifested by increased excitability of the nervous system, intensification of reflexes, slight psychic agitation, rapid fatigability, acceleration of pulse rate, trembling of the hands, tendency to perspire, increase in basal metabolic rate, and weight loss. Hyperthyroidism is often combined with dysfunctions of other endocrine glands. Treatment for it includes remedies that calm the nervous system and microdoses of iodine.

L. M. GOL’BER

hyperthyroidism

[¦hī·pər′thī‚rȯid‚iz·əm]
(medicine)
The constellation of signs and symptoms caused by excessive thyroid hormone in the blood, either from exaggerated functional activity of the thyroid gland or from excessive administration of thyroid hormone, and manifested by thyroid enlargement, emaciation, sweating, tachycardia, exophthalmos, and tremor. Also known as exophthalmic goiter; Grave's disease; thyrotoxicosis; toxic goiter.
References in periodicals archive ?
102) Whenever possible, it is advisable for hyperthyroid women desiring pregnancy to achieve a euthyroid state before conception.
Hyperthyroidism is associated with shortening of action potential duration that triggers the development of AF In a study on the effects of thyroid hormones on cardiomyocytes, action potential duration was shorter in hyperthyroid than in euthyroid myocytes (6).
Thyroid storm is a potentially life-threatening endocrinologic emergency characterized by an exacerbation of a hyperthyroid state.
Similarly, around 70 per cent of hyperthyroid cats drink more than normal.
People who are hyperthyroid tend to lose weight because their body's metabolic rate is faster than normal.
Does the low reported range of thyroid-stimulating hormone (TSH) immunometric assays clearly distinguish between euthyroid and hyperthyroid patients?
Although classically it may begin with hyperthyroid symptoms, in my experience it usually is a hypothyroid response to the pregnancy with fatigue, depression, poor memory, feeling cold, constipation, muscle cramps, and difficulty losing weight.
Peterson was the first veterinarian to document hyperthyroidism in cats as well as the first to treat hyperthyroid cats with radioiodine.
A study performed in Turkish population has shown that serum PON activity and insulin sensitivity index (ISI) were significantly lower in hyperthyroid patients before treatment and were negatively correlated with serum TT4 and TT3 levels, whereas both were increased after restoration of euthyroidism by using propylthiouracil (PTU); HDL cholesterol level was increased compared to baseline (46).
Twenty-seven percent of hyperthyroid patients have an increased total calcium concentration, and 47% have increased ionized calcium (1).
Current, ongoing prospective studies will determine to what extent treating subclinical hyperthyroid patients will improve quality of life (measured by improvement in thyroid-related symptoms) and duration of life.
Nine variables were evaluated, although all variables were not used in the final model: race/ethnicity, sex, age, BMI, FFM, diabetes status, hypertension status, hyperthyroid disease status, and kidney disease status.