Video EEG monitoring — Inpatient video-EEG monitoring combines both a video and EEG recording of clinical events. This test is used primarily to determine whether epilepsy is the cause of recurrent seizure-like events. In some series, more than 25 percent of individuals referred for monitoring for refractory epilepsy are found to have nonepileptic events, usually psychogenic nonepileptic seizures [69]. EEG monitoring can also aid in seizure classification and is used for presurgical evaluation of epilepsy patients. (See "Video and ambulatory EEG monitoring in the diagnosis of seizures and epilepsy".)