Table 2. Extent of SOZ and initial seizure spread.
| Location | Temporal lobe | |||||||
|---|---|---|---|---|---|---|---|---|
| Ictal EEG Onset | Medial, 1 | Medial, 2 | Medial, ≥3 | Medial & lateral | Lateral | Temporal & orbitofrontal | p-value | |
| SOZ a | HYP | 45 | 36 | 7 | 12 | 0 | 0 | 0.0002 |
| LVF | 15 | 26 | 15 | 27 | 1 | 16 | ||
| Ipsilateral spread b | HYP | 29 | 10 | 5 | 21 | 14 | 7 | 0.007 |
| LVF | 10 | 1 | 0 | 16 | 13 | 25 | ||
| Contralateral spread c | HYP | 10 | 15 | 0 | 43 | 0 | 14 | 0.02 |
| LVF | 4 | 13 | 10 | 25 | 10 | 7 | ||
a Values expressed as percent of total HYP (n = 42) or LVF (n = 68) onset seizures
b Column labels “Medial, 1”, “Medial, 2”, and “Medail, ≥3” refer to number of medial temporal lobe structures in the SOZ and sites of initial seizure spread
c Percentages for HYP or LVF onset seizures do not sum to 100% since not all seizures spread from the SOZ to other ipsilateral or contralateral recording sites.