hyperthyroidism

(redirected from subclinical hyperthyroidism)
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Related to subclinical hyperthyroidism: subclinical hypothyroidism

hy·per·thy·roid·ism

 (hī′pər-thī′roi-dĭz′əm)
n.
1. Excessive production of thyroid hormones.
2. Excessive activity of the thyroid gland, characterized by increased basal metabolism.

hyperthyroidism

(ˌhaɪpəˈθaɪrɔɪˌdɪzəm)
n
(Pathology) overproduction of thyroid hormone by the thyroid gland, causing nervousness, insomnia, sweating, palpitation, and sensitivity to heat. Also called: thyrotoxicosis See exophthalmic goitre
ˌhyperˈthyroid adj, n

hy•per•thy•roid•ism

(ˌhaɪ pərˈθaɪ rɔɪˌdɪz əm)

n.
1. overactivity of the thyroid gland.
2. a condition resulting from this, characterized by increased metabolism and exophthalmos.
[1895–1900]

hyperthyroidism

an abnormal thyroid condition distinguished by high metabolic rate and blood pressure and the enlargement of the thyroid. — hyperthyroid, adj.
See also: Disease and Illness

hyperthyroidism

Oversecretion of thyroxine, resulting in increased metabolic and heart rates, circulation, and blood pressure.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hyperthyroidism - an overactive thyroid gland; pathologically excessive production of thyroid hormones or the condition resulting from excessive production of thyroid hormones
adenosis, gland disease, glandular disease, glandular disorder - a disorder of the glands of the body
exophthalmic goiter, Graves' disease - exophthalmos occurring in association with goiter; hyperthyroidism with protrusion of the eyeballs
exophthalmos - protrusion of the eyeball from the socket
hypothyroidism - an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones
Translations
hüpertüreooskilpnäärme ületalitlus

hy·per·thy·roid·ism

n. hipertiroidismo, actividad excesiva de la tiroides.

hyperthyroidism

n hipertiroidismo
References in periodicals archive ?
Out of 6 patients diagnosed with autoimmune hyperthyroidism, 3 patients were subclinical hyperthyroidism and 3 patients were overt hyperthyroidism.
Although some heterogeneity exists, most studies on subclinical thyroid disorders reported an autonomic imbalance with lower HRV indices in both subclinical hyperthyroidism (SCHyper) (10-12) and hypothyroidism (SCHypo) (13-15).
Thyroid function abnormalities were categorized according to serum TSH and free thyroid hormone levels as follows; i) euthyroidism: normal fT3, fT4 and TSH levels, ii): hypothyroidism: TSH elevation with decreased fT3 and fT4 levels, iii) hyperthyroidism: elevated fT3 and fT4 with suppressed TSH, iv): subclinical hypothyroidism: TSH elevation with normal fT3 and fT4, v): subclinical hyperthyroidism: low TSH with normal fT3 and fT4.
[20] They divided the patients into three groups: Subclinical hyperthyroidism (TSH <4.5 mU/L), SCH (TSH >4.5 mU/L), and a thyroid group.
Subclinical hypothyroidism was 8.5%, clinical hypothyroidism was 4.9%, subclinical hyperthyroidism was 3.5% and clinical hyperthyroidism was found in 1.4% of type 2 diabetic patients.
Subclinical hyperthyroidism a reduced serum TSH is present along with normal range T3 and triiodothyronine levels.
Thyroid function was classified as euthyroidism when free thyroxine (FT4), free triiodothyronine (FT3), and thyroid stimulating hormone (TSH) were within the normal range; clinical hypothyroidism when TSH level was greater than the upper limit of the reference range and FT4 or FT3 was lower than the lower limit of their reference ranges; subclinical hypothyroidism when TSH is greater than the upper limit of the reference range and FT4 and FT3 are within the normal range; clinical hyperthyroidism when TSH level was lower than the lower limit of the reference range and FT4 or FT3 was greater than the upper limit of their reference ranges; and subclinical hyperthyroidism when TSH level was lower than the lower limit of the reference range and FT3 and FT4 are within the normal range.
Among the 5936 patients, 5326 (89.7%) were euthyroid, 248 (4.2%) had subclinical hyperthyroidism, and 362 (6.1%) had subclinical hypothyroidism (Figure 1).
On the other hand, if treatment is started when it is not indicated, patients may develop subclinical hyperthyroidism. 5
Studies of insulin resistance in patients with clinical and subclinical hyperthyroidism. Eur J Endocrinol 2010;163:625-30.
Patients with subclinical hyperthyroidism are also asymptomatic and treatment may reduce progression to overt hyperthyroidism.
In the lithium group, 14 cases (16.7%) of hypothyroidism, seven cases (8.3%) of subclinical hypothyroidism, and one case (1.2%) of subclinical hyperthyroidism were defined; in the control group, seven cases (10.8%) of hypothyroidism and two cases (3.1%) of subclinical hyperthyroidism were defined.