Video EEG is the gold standard investigation used to differentiate NEAD from epileptiform events.

What is videotelemetry?

Videotelemetry is a special type of EEG (brainwave) test. The brainwaves are recorded usually for several days along with a video using a camera. Therefore this is a much longer recording than a standard EEG.

Videotelemetry can only be performed as an in-patient as it requires specialised equipment and specially trained staff usually in a purpose-built unit.

The advantage of videotelemetry is that if you have an attack then the brainwaves and video are recorded together. This can often be very helpful with coming to a diagnosis or further treatment.

Source: