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Thyroid dysfunction.



McCormack AI, Learoyd DE, 2006. A guide to thyroid dysfunction. MedToday 7:5;28-35.

Hyperthyroidism occurs in approximately 2% of the community and hypothyroidism in 5-10%. There is a female to male predominance of 5:1. A family history of the thyroid dysfunction is common in affected patients.

Hyperthyroidism

The most common cause of hyperthyroidism is Graves' disease; a diffuse goiter with a bruit bruit (brwe) (brldbomact)
1. a sound or murmur heard in auscultation, especially an abnormal one.

2. sound (3).
 is commonly found. A nodular goiter may suggest either a toxic multinodular goiter toxic multinodular goiter Endocrinology A hyperthyroid state characterized by innumerable functionally active nodules producing excess thyroid hormone Clinical Hyperthyroidism without ophthalmoplegia Risk groups ♀ > age 60. Cf Goiter.  or toxic adenoma. Subacute thyroiditis Thyroiditis Definition

Thyroiditis is inflammation of the thyroid gland, a butterfly-shaped organ next to the windpipe.
Description

The thyroid is the largest gland in the neck.
 is associated with a tender asymmetrically enlarged thyroid, and patients are typically systemically unwell with fever and neck pain.

Eye lid lag and lid retraction can occur in any thyrotoxic state, but proptosis proptosis /prop·to·sis/ (prop-to´sis) forward displacement or bulging, especially of the eye.

prop·to·sis
n. pl.
 (bulging eye) is specific for Graves' disease.

Treatment of hyperthyroidism usually involves antithyroid drugs, radioactive iodine or total thyroidectomy.

Hypothyroidism

Common symptoms include weight gain, fatigue, cold intolerance, depression, constipation, dry skin, muscle and joint aches and slowed mental processing. There may be bradycardia, periorbital edema, thinning of the outer third of the eyebrows, hoarse voice or goitre goitre

Enlargement of the thyroid gland, causing a prominent swelling in the front of the neck. The thyroid normally weighs 0.5 to 0.9 oz (15 to 25 g); however, goitrous thyroid glands can grow to more than 2 lbs (1,000 g).
. Hypothyroidism is suggested if several of these features occur in combination or with recent onset.

Causes of hypothyroidism include autoimmune disease (Hashimoto's thyroiditis), congential hypothyroidism, thyroid or head and neck surgery, previous irradiation, drug treatment (e.g. lithium, interferon), pituitary or hypothalamic disease.

Primary hypothyroidism is confirmed by an elevated TSH and decreased free T4 level. Patients with autoimmune thyroid disease should have their vitamin [B.sub.12] levels measured.

Treatment of hypothyroidism involves thyroxine therapy (Eutroxsig, Oroxine). Most patients require maintenance doses of 100 to 150 [micro]g daily. Women taking thyroxine and planning pregnancy may need to increase the dose by 30% during pregnancy.

Thyroid function tests should be considered in any patient with symptoms or signs suggestive of thyroid disease and in any patient at risk of developing thyroid dysfunction.

Anne Cowper

PO Box 45, Concord West NSW 2138

Email ajmh@nhaa.org.au
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Dr.R.N.Goel
ram niwas goel (Member):  4/16/2011 12:18 PM
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Author:Cowper, Anne
Publication:Australian Journal of Medical Herbalism
Geographic Code:8AUST
Date:Mar 22, 2007
Words:320
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