Nonconvulsive Status Epilepticus Associated with Cerebral Hyperperfusion Syndrome after Carotid Endarterectomy: A Case Report

We report a case of 73-year-old man who developed nonconvulsive status epilepticus as complication cerebral hyperperfusion syndrome after carotid endarterectomy for artery stenosis. On postoperative day 1, the patient experienced headaches and vomiting. Resting N-isopropyl-p-[123I] iodoamphetamine single-photon emission computed tomography showed increased blood flow to entire right hemisphere, was diagnosed with syndrome. He treated antihypertensive antiseizure medications, sedated using propofol, intubated, placed under mechanical ventilation. 3, perfusion imaging reduction in hyperperfusion, propofol sedation terminated on 4. However, exhibited prolonged impaired awareness roving eye movements, long-term video electroencephalographic monitoring revealed electrographic seizures. The epilepticus. Propofol resumed, medication dose increased. Subsequently, state hemisphere diminished, findings improved, allowing be 7. from this suggest that when clinical subtle symptoms, such are observed during treatment syndrome, electroencephalography should performed detect