Abstract
Vasospasm and consequent cerebral ischaemia in aneurysmal subarachnoid haemorrhage are well-described. The development of cerebral ischaemia following pituitary tumour surgery is under-appreciated, and can be attributed to mainly cerebral vasospasm or internal carotid artery compression. We report on two patients with pituitary tumours who developed delayed cerebral ischaemia after transsphenoidal and transcranial pituitary macroadenoma decompression. The patients had vasospasm of intracranial vessels demonstrable on magnetic resonance angiogram. One recovered neurologically following nimodipine and hypertensive-hypervolaemia therapy while the other developed fulminant cerebral infarction. We discuss the complex multi-factorial mechanisms of cerebral ischaemia in pituitary disorders, as well as the management strategies and their limitations.
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