thyrotoxicosis

thyrotoxicosis /thy·ro·tox·i·co·sis/ (thi″ro-tok″sĭ-ko´sis) a morbid condition due to overactivity of the thyroid gland; see Graves' disease.

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thy·ro·tox·i·co·sis (thr-tks-kss)

n.

A toxic condition resulting from excessive amounts of thyroid hormones in the body, as that occurring in hyperthyroidism.

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Thyrotoxicosis

An excess of thyroid hormones in the blood, causing a variety of symptoms that include rapid heart beat, sweating, anxiety, and tremor.

Mentioned in: Thyroid Function Tests, Tremors

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thyrotoxicosis.

See Graves' disease.

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thyrotoxicosis (thī´rōtok´sikō´sis),

n See hyperthyroidism.

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thyrotoxicosis

a morbid condition due to overactivity of the thyroid gland.

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thyrotoxicosis

Cardiovascular disease High-output heart failure due to 1. Circulatory factors–↑ total blood volume, ↓ systemic vascular resistance, 2. Cardiac factors–↑ contractility, ↑ heart rate, ↑ diastolic relaxation, which translate into volume overload, ↓ myocardial contractile reserve, ↓ diastolic filling time, tachyarrhythmia Management Inorganic iodine abruptly inhibits T₃ and T₄ secretion, but should be preceded by methimazole or propyluracil to prevent oxidation and organification of iodine, followed by definitive treatment of 1. Thyrotoxicosis–radioactive iodine, surgical resection, 2. Heart disease–eg, furosemide–diuretic for volume overload, beta blockers–eg, propranolol, in absence of CHF, and anticoagulants for possible arterial thromboembolism due to A Fib. See Amiodarone-induced thyrotoxicosis, Hamburger thyrotoxicosis, Hyperthyroidism, Postpartum thyrotoxicosis, T₃ thyrotoxicosis, T₄ thyrotoxicosis. Cf Thyroid crisis Endocrinology See Thyrotoxic crisis.