Table 3.

Limitations of AEEG.

•Cannot be used in emergencies such as serial seizures or status epilepticus.

•When used without video diagnostic yield is reduced.

•Requires patient to be visibly in front of camera during events in question.

•Typically, AEEG is not performed in real-time.

•Requires post-processing and time-delays for review.

•Push-button activations and diary entries may be poorly documented without patient and the family’s cooperation.

•Ability to fix technical problems is limited.

•Environmental and equipment associated artifacts require daily re-gelling of electrodes to prevent deterioration when serial days of AEEG are recorded.

•Battery life can limit the duration of AEEG recording depending upon the parameters of recording. Rechargeable batteries and new designs reduce power consumption [60].

•Lack of medical supervision limits ASM tapering to facilitate seizures limiting use in pre-surgical evaluation of patients with drug-resistant epilepsy.

•Cosmetically, may be socially embarrassing and overly cumbersome for patients.

ASM: Anti-seizure medication; AEEG: Ambulatory EEG.