Cerebral hyperperfusion syndrome is characterized by increased cerebral blood flow after a revascularization procedure, such as Carotid endarterectomy, Bypass surgeries, or stent implantation. It has been postulated that chronic reduction in blood flow impairs autoregulation of cerebral blood flow[^1].
Clinical presentation
Clinically, hyperperfusion syndrome manifests as ipsilateral headaches, seizures, or neurological deficits and may progress to an intracerebral hemorrhage[^1].
Epidemiology
The literature reports a risk of cerebral hyperperfusion syndrome of approximately 2% after carotid endarterectomy and approximately 1% after Carotid artery stenting .