We present the case of a 70-year-old man who developed
postoperative graft spasm after coronary artery bypass surgery,
which was successfully treated with calcium channel blockers.
An elevated ionised calcium was found and subsequently
he was diagnosed with primary hyperparathyroidism. This
case emphasises the importance of being aware of endocrine
disorders as underlying cause of cardiovascular symptoms, such
as perioperative graft spasm.
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