Table 1.
Patient profile.
| Mean age (year old) | 15.2 |
| Median age (year old) | 14 |
| Range of age (year old) | 5 – 44 |
| Range of age of epilepsy onset (year old) | 0 – 34.8 |
| Proportion of patients with history of GTCs (%) | 57.0 |
| Proportion of male (%) | 53.2 |
| Proportion of left handedness (%) | 10.1 |
| Proportion of sampled hemisphere (%) | |
| Left | 33 (41.8) |
| Right | 28 (35.4) |
| Both | 18 (22.8) |
| Seizure onset zone*. Number of patients (%) | |
| Left frontal | 11 (13.9) |
| Left temporal | 26 (32.9) |
| Left parietal | 8 (10.1) |
| Left lateral occipital | 1 (1.3) |
| Right frontal | 11 (13.9) |
| Right temporal | 19 (24.1) |
| Right parietal | 14 (17.7) |
| Right lateral occipital | 4 (5.1) |
| Mean number of antiepileptic drugs | 1.9 |
| Median number of antiepileptic drugs | 2 |
| Range of number of antiepileptic drugs | 1 – 4 |
| Antiepileptic drugs**. Number of patients (%) | |
| Carbamazepine | 6 (7.6) |
| Oxcarbazepine | 33 (41.8) |
| Lacosamide | 26 (32.9) |
| Zonisamide | 5 (6.3) |
| Phenytoin | 6 (7.6) |
| Lamotrigine | 20 (25.3) |
| Levetiracetam | 32 (40.5) |
| Valproate | 10 (12.7) |
| Clobazam | 7 (8.9) |
| Topiramate | 4 (5.1) |
| Etiology. Number of patients (%) | |
| Tumor | 16 (20.3) |
| Dysplasia | 22 (27.8) |
| Hippocampal sclerosis | 8 (10.1) |
| Dysplasia + Hippocampal sclerosis | 1 (1.3) |
| No definitive lesion other than gliosis | 31 (39.2) |
| Arteriovenous malformation | 1 (1.3) |
| Mean response accuracy (%) | 91.3 |
Eighty-four percent of patients were 19 years old or younger.
*:
Sixteen patients had seizure onset zone involving at least two lobes.
**:
Fifty five patients took at least two antiepileptic drugs.
Response accuracy was defined as the number of correct trials divided by the number of all trials.