Vasoconstriction and hyperperfusion syndrome after carotid artery stenting

Abstract

Background: Common complications of carotid artery stenting (CAS) are cerebral ischemia and hyperperfusion syndrome. To date, only a few cases of late-onset cerebral vasoconstriction occurring several hours after CAS have been reported. However, there are no reports of developed vasoconstriction and hyperperfusion syndrome. Case presentation: A 79-year-old man developed vasoconstriction 1 day after carotid artery stenting. Vasoconstriction improved immediately with glucocorticoid. However, a week later, the patient developed hyperperfusion syndrome. Conclusions: Postoperative vasoconstriction and hyperperfusion syndrome is an unrecognized complication and surgeons should be aware of it.