Occurs when insufficient parathyroid hormone (PTH) is produced to mainatin extracellular levels of calcium within the normal range.
Congenital (eg parathyroid dysplasia; failure of gland to develop); iatrogenic (eg surgery); destruction (eg sarcoidosis, radiation, autoimmune, tumour); suppression (eg hypomagnesaemia, drugs); impaired action of hormone (eg pseudohypoparathyroidism)
Mostly due to increased neuromuscular irritability.
Parathesias, muscle cramps, altered mental status, psychosis, pain, difficulty walking, hyperreflexia, tetany, seizures
Involvement of foot:
Aim is to restore calcium and phosphorous levels use calcium and vitamin D supplements