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Hypoparathyroidism
Aka: Hypoparathyroidism
- Causes
- Hereditary
- Idiopathic Hypoparathyroidism
- DiGeorge Syndrome
- Pseudohypoparathyroidism (rare)
- Tissue-resistance to PTH
- Hypoparathyroidism despite increased PTH levels
- Acquired
- Thyroidectomy with operative Parathyroid removal (most common cause)
- Post-surgical monitoring includes Serum Calcium and PTH levels
- Radiation (rare)
- Hemochromatosis
- Autoimmune Syndrome
- Multiple endocrine deficiency syndrome
- Adrenal, Ovarian and Parathyroid failure
- Mucocutaneous Candidiasis
- Alopecia
- Vitiligo
- Pernicious Anemia
- Symptoms and signs
- See Hypocalcemia
- Labs
- See Hypocalcemia
- Management: Calcium Replacement
- See Calcium Replacement
- General
- Adjust dosing to Serum Calcium
- Avoid Hypercalciuria (risk of Nephrolithiasis)
- Check for Hypomagnesemia and replace if low
- Preparations
- Calcium Citrate 950 mg 2 tabs orally three times daily
- Calcitriol (Vitamin D) 0.5 mcg/day
- References
- Al-Azem (2012) Best Pract Res Clin Endocrinol Metab 26(4):517-22 [PubMed]
- Michels (2013) Am Fam Physician 88(4): 249-57 [PubMed]