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Long-term or "continuous" video-electroencephalography (EEG) monitoring is a diagnostic technique commonly used in patients with epilepsy.It involves the long-term hospitalization of the patient, typically for days or weeks, during which brain waves are recorded via EEG and physical actions are continuously monitored by video.
The Wada test is named after Japanese neurologist and epileptologist Juhn Atsushi Wada, of the University of British Columbia. [5] [6] He developed the test while he was a medical resident in Japan just after [citation needed] World War II, when he was receiving training in neurosurgery.
EEG can detect abnormal electrical discharges such as sharp waves, spikes, or spike-and-wave complexes, as observable in people with epilepsy; thus, it is often used to inform medical diagnosis. EEG can detect the onset and spatio-temporal (location and time) evolution of seizures and the presence of status epilepticus .
The diagnosis of reflex epilepsy usually includes a comprehensive medical and family history as well as a variety of tests. [12] These tests may include a electroencephalography (EEG), magnetic resonance imaging (MRI), as well as genetic testing. [12] The procedure for diagnosing epilepsy generally follows three steps: [12]
If epilepsy surgery is being considered, testing is often performed to determine the hemisphere of the brain involved in language and memory function. This helps inform about potential risks to language and memory with surgery. There are two main tests available for this objective: the Wada test and fMRI.
Photosensitive epilepsy (PSE) is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights, bold, regular patterns, or regular moving patterns. PSE affects approximately one in 4,000 people (5% of those with epilepsy).