Pseudohypoparathyroidism natural history, complications and prognosis

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Pseudohypoparathyroidism Microchapters

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mazia Fatima, MBBS [2]

Overview

Patients with pseudohypoparathyroidism type Ia have an increased rate of other endocrine abnormalities (such as hypothyroidism and hypogonadism). Complications of hypocalcemia associated with pseudohypoparathyroidism may include seizures and other endocrine problems, leading to decreased sexual drive and delayed sexual development, fatigue, and increased weight.

Natural History

  • If left untreated, patients with pseudohypoparathyroidism type1a, type 1c and pseudopseudohypoparathyroidism present by the second decade of life with characteristic physical features of Albright's hereditary osteodystrophy like:
  • If left untreated, pseudohypoparathyroidism type 1b patients at an increased risk of developing hyperparathyroidism and hyperparathyroid bone disease as a result of long-term elevation in parathyroid hormone.

Complications

Complications that can develop as a result of pseudohypoparathyroidism are:[1][2][3][4]

  • Complications of hypocalcemia associated with pseudohypoparathyroidism may include:
    • Seizures
    • Lowered sexual drive
    • Delayed sexual development
    • Lowered energy levels
    • Increased weight
  • Subcutaneous calcification in neonates

Prognosis

References

  1. Shalitin S, Davidovits M, Lazar L, Weintrob N (2008). "Clinical heterogeneity of pseudohypoparathyroidism: from hyper- to hypocalcemia". Horm. Res. 70 (3): 137–44. doi:10.1159/000137658. PMID 18663313.
  2. Adachi M, Muroya K, Asakura Y, Kondoh Y, Ishihara J, Hasegawa T (2009). "Ectopic calcification as discernible manifestation in neonates with pseudohypoparathyroidism type 1a". Int J Endocrinol. 2009: 931057. doi:10.1155/2009/931057. PMC 2778176. PMID 20011056.
  3. Neary NM, El-Maouche D, Hopkins R, Libutti SK, Moses AM, Weinstein LS (2012). "Development and treatment of tertiary hyperparathyroidism in patients with pseudohypoparathyroidism type 1B". J. Clin. Endocrinol. Metab. 97 (9): 3025–30. doi:10.1210/jc.2012-1655. PMC 3431579. PMID 22736772.
  4. Balavoine AS, Ladsous M, Velayoudom FL, Vlaeminck V, Cardot-Bauters C, d'Herbomez M, Wemeau JL (2008). "Hypothyroidism in patients with pseudohypoparathyroidism type Ia: clinical evidence of resistance to TSH and TRH". Eur. J. Endocrinol. 159 (4): 431–7. doi:10.1530/EJE-08-0111. PMID 18805917.


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