COVID-19: A Potential Cause of Non-convulsive Status Epilepticus

Coronavirus disease 2019 (COVID-19) has been described as being primarily responsible for respiratory symptoms. Although several case reports have shown the importance of neurological manifestations, only a few have reported non-convulsive status epilepticus (NCSE) as the first manifestation of COVID-19 infection. Here, we report the case of a 30-year-old male patient with no past medical history who was admitted with altered consciousness. On examination, the patient had a Glasgow Coma Scale (GCS) of 13/15. Vital signs were within normal range. Computed tomography scan of the and magnetic resonance imaging of the brain were normal. Biochemical assessments showed a mild hyponatremia (134 mEq/L) and high levels of D-dimer and lactate dehydrogenase. Urine drug screening did not find any abnormality and a lumbar puncture showed an increased cerebrospinal fluid protein. The result of the reverse transcription polymerase chain reaction test in the nasopharyngeal swab was positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Electroencephalogram (EEG) showed a generalized epileptiform activity. Upon undergoing antiepileptic treatment, patient's GCS improved to 15 gradually. A repeated EEG confirmed complete resolution of epileptic abnormalities four days later. This case report shows that SARS-CoV-2 infection can directly involve the central nervous system and can be manifested with isolated NCSE without any other neurological manifestations.