X-linked recessive hypoparathyroidism

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X-linked recessive hypoparathyroidism is a rare, congenital form of hypoparathyroidism.

Signs and symptoms[edit | edit source]

The signs and symptoms of X-linked recessive hypoparathyroidism are characteristic of hypoparathyroidism and its consequent hypocalcemia. They include acute symptoms, like paresthesia, twitching of the hands and feet, unconsciousness, and trouble breathing; and chronic symptoms, including seizures, tiredness, irritability, cardiac insufficiency, abnormal heart rhythms, papilledema, cataracts, calcium deposits in the brain, and loss or brittleness of hair, skin, and nails.[1]

Genetics[edit | edit source]

This disease is named for its inheritance, which occurs in an x-linked recessive pattern.[1]

Pathophysiology[edit | edit source]

In this particular form of hypoparathyroidism, the parathyroid glands are underdeveloped and therefore do not produce enough parathyroid hormone. This is caused by a mutation on the x chromosome in the region of Xq26-27.[1]

Diagnosis[edit | edit source]

Hypoparathyroidism can be diagnosed using blood tests, the Chvostek sign, and the Trousseau sign. If comorbid conditions like congenital malformations, impaired growth, and intellectual disability are present, it may be a genetic form of hypoparathyroidism; the affected gene can be determined using a DNA test.[1]

Treatment[edit | edit source]

X-linked recessive hypoparathyroidism is treated like other forms of the disease, using calcium and vitamin D supplementation. Supplementation with parathyroid hormone is another treatment option.[1]

References[edit | edit source]

  1. 1.0 1.1 1.2 1.3 1.4 "Hypoparathyroidism". www.socialstyrelsen.se. Retrieved 2015-07-19.

External links[edit | edit source]

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Contributors: Prab R. Tumpati, MD