Contralateral Cortical Subarachnoid Hemorrhage as a Manifestation of Hyperperfusion Syndrome after Carotid Artery Stenting

Cerebral hyperperfusion syndrome is a rare but serious complication of carotid revascularization, and characterized by ipsilateral headache, hypertension, seizures, focal neurological deficits. Therefore, treatment strategies are directed towards regulation blood pressure limitation rises in cerebral perfusion to prevent edema or hemorrhage, especially during several days after endarterctomy stenting. We report the unique case patient who suffered from contralateral cortical subarachnoid hemorrhage artery stenting, despite well-controlled pressure.