ArticleBMJ case reports2021
Late diagnosis of chronic hypocalcemia due to autoimmune hypoparathyroidism.
Article in BMJ case reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
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3 authors at 2 institutions in 1 country.
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Abstract
Hypoparathyroidism is most often the result of postsurgical damage to the parathyroid glands but may occasionally be autoimmune hypoparathyroidism. In the latter context, activating antibodies directed against the calcium-sensing receptor (CaSR) have been described. We hereby present the case of a patient suffering from chronic recurrent muscle cramps and paresthesia, presenting for a seizure due to hypocalcaemia. After eliminating the possibility of a genetic disorder, we searched for autoimmune hypoparathyroidism as there was no obvious cause of hypoparathyroidism. The search for anti-CaSR antibodies was positive. There was no argument for autoimmune polyendocrine syndrome type 1 so we concluded that it was isolated autoimmune hypoparathyroidism caused by activating antibodies to the CaSR. The patient was treated with vitamin D and calcium supplementation. The search for complications of hypoparathyroidism and hypercalciuria revealed basal ganglia calcification. The patient's hypocalcaemia is now being kept under control with oral supplementation.
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