An unusual cause of hypocalcaemia: magnesium induced inhibition of parathyroid hormone secretion in a patient with subarachnoid haemorrhage.
We describe a case of a woman with subarachnoid haemorrhage who developed hypocalcaemia and decreased serum parathyroid hormone levels due to hypermagnesemia. The patient had been receiving bisphosphonate therapy prior to admission and this may have contributed to the severity of the problem.
Bradford
C
C
Department of Intensive Care, Royal North Shore Hospital, St Leonards, New South Wales. cbradfor@nsccahs.health.nsw.gov.au
McElduff
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A
D000927:Anticonvulsants / Q000009:adverse effects* / Q000627:therapeutic use; D002118:Calcium / Q000097:blood; D005260:Female; D006801:Humans; D006996:Hypocalcemia / Q000209:etiology / Q000503:physiopathology*; D008274:Magnesium / Q000097:blood; D008278:Magnesium Sulfate / Q000009:adverse effects* / Q000627:therapeutic use; D008875:Middle Aged; D010281:Parathyroid Hormone / Q000097:blood / Q000378:metabolism*; D013345:Subarachnoid Hemorrhage / Q000097:blood / Q000188:drug therapy*; D020301:Vasospasm, Intracranial / Q000517:prevention & control
D000927:Anticonvulsants; D010281:Parathyroid Hormone; D008278:Magnesium Sulfate; D008274:Magnesium; D002118:Calcium