Page 113 - ILAE_Lectures_2015

Table 1. Continued

Single seizures only 10–20% 30% Exceptional
Frequent seizures 10% 10% 90%
Nocturnal (sleep only) 70% 64% Exceptional
10–20% 17% 10%
Febrile convulsions Excellent Excellent Uncertain
Common Common Scarce or rare
Prognosis
Remission within 1–2 years Rare Scarce Common
from first seizure
Seizures after the age of 13 Have not been reported
years 100%
Scarce
Inter-ictal EEG Exceptional

Centrotemporal spikes alone As a rule and characteristic Rare Have not been reported
Common
Occipital spikes Have not been reported 65% Common
~10%
Spikes in other locations Probably uncommon Frequent
Fast spikes and fast
Brief generalised discharges of 5% 10% rhythms
Occipital regions
3–5 Hz slow waves with small

spikes

Somatosensory evoked spikes Common Rare

Fixation-off sensitivity Has not been reported Common

Photosensitivity Has not been reported Exceptional

Normal EEG or focal slow ~10% ~10%
wave after first seizure
Ictal EEG Slow activity with spikes Slow activity with
spikes

Ictal onset Rolandic regions Anterior or posterior
regions