Cerebral Vasospasm Occurring Immediately after Endoscopic Transsphenoidal Resection of a Pituitary Adenoma: A Case Report.

Background:Cerebral vasospasm is a rare postoperative complication of transsphenoidal pituitary adenoma surgery with potentially severe consequences. These vasospasms generally have a delayed presentation at a mean of 8 postoperative days. We report an unusual case of hyperacute onset of cerebral vasospasm that occurred immediately after surgery. Case Description:A 38-year-old man underwent endoscopic transsphenoidal surgery for a nonfunctioning pituitary adenoma. The patient experienced mild subarachnoid hematoma during surgery. Three hours after surgery, he developed rightward conjugate eye deviation and complete paralysis of the left upper and lower extremities. Diagnostic imaging revealed cerebral vasospasm in both middle cerebral arteries, and symptoms improved after intra-arterial administration of fasudil hydrochloride. Conclusion:There is a need for prompt diagnosis and therapeutic intervention when typical symptoms of cerebral vasospasm, such as paralysis, occur at any time during the postoperative course.