Parathyroid
Hypoparathyroidism
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Hypoparathyroidism
Causes
Hereditary
Idiopathic Hypoparathyroidism
DiGeorge Syndrome
Pseudohypoparathyroidism (rare)
Tissue-resistance to PTH
Hypoparathyroidism despite increased PTH levels
Acquired
Thyroid
ectomy 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
Gene
ral
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]
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