Antiepileptic treatment for anti-NMDA receptor encephalitis: the need for video-EEG monitoring.

Anti-NMDA receptor encephalitis is a severe disorder characterised clinically by seizures, autonomic instability, and severe disturbances of memory, behaviour, and cognition. Due to the severity of symptoms, many patients are admitted to the intensive care unit. For some patients, the presence of various movement disorders and abnormal autonomic signs, as well as a history of seizures, lead to a false impression of status epilepticus, which is reported in 6% of the cases. Here, we present two young female patients, one of whom had ovarian teratoma. Both patients were referred to our neurological intensive care unit with a diagnosis of status epilepticus. However, prolonged video-EEG findings were compatible with encephalopathy. We avoided aggressive treatment with intravenous anaesthetics and both patients recovered after immunotherapy, one of whom received surgery. Physicians should be cautious in interpreting abnormal movements and autonomic signs in such patients and video-EEG monitoring is advised when status epilepticus is suspected. [Published with video sequences].