Table 1.
Patient characteristics
| Pt | Sex | Age surgery, y | Epilepsy duration | Side | Location | Pathology | Follow‐up, mo | Engel class | AED free | Channels, n | Resected channels, n | Spikes in ioECoG overall | Epochs with Sp/Ri/FR, n |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | F | 1 | 1 y | L | TO | GM WHO II | 18 | IA | Yes | 17 | 13 | Spikes Gr3, 4, 6‐8, 11‐14, 18‐19 | 2/0/0 |
| 2 | F | 3 | 2 y | L | T | GGM WHO I | 30 | IA | Yes | 17 | 13 | Sharp waves Gr6‐8, 16, 18, 19; bursts Gr18 | 0/0/0 |
| 3 | M | 8 | 8 y | L | Fr | FCD 2A | 31 | IA | Yes | 18 | 10 | — | 0/0/0 |
| 4 | M | 9 | 8 y | R | Fr | FCD 2B~ | 32 | IA | Yes | 31 | 16 | Spikes Gr1, 2, 9, 17, 20, 26, 27 | 4/3/0 |
| 5 | F | 12 | 1 y | L | Fr | FCD 2A | 38 | IA | Yes | 15 | 10 | Spikes Gr2‐5, 7‐10, 12 | 3/1/0 |
| 6 | M | 12 | 1 y | R | Fr | DNET WHO I | 49 | IA | Yes | 17 | 4 | — | 0/0/0 |
| 7 | M | 14 | 12 y | R | Fr | FCD 2B | 25 | IA | Yes | 16 | 10 | Continuous Gr8‐10, 12‐15, 17‐20 | 4/4/4 |
| 8 | M | 16 | 2 y | L | T | GGM WHO II | 25 | IA | Mono | 16 | 10 | Spikes Gr2‐4, 6‐8, 10 | 0/0/0 |
| 9 | M | 17 | 5 y | R | T | FCD 2B | 12 | IA | Yes | 18 | 4 | Bursts Gr7‐9, 12‐14, 19 | 3/2/2 |
| 10 | F | 20 | 5 y | R | T | PXA WHO II | 15 | IA | Yes | 18 | 7 | — | 0/0/0 |
| 11 | M | 41 | 40 y | R | Fr | FCD 2B | 36 | IA | Yes | 19 | 6 | Spikes Gr1, 2, 6, 7, 11 | 0/0/0 |
| 12 | F | 5 | 3 y | R | Fr | FCD 2B~ | 20 | IA | Mono | 15 | 8 | Bursts Gr6, 7, 12, 13 | 0/0/0 |
| 13 | M | 11 | 3 y | R | C | mMCD II | 57 | IVB | Poly | 20 | 9 | Bursts Gr2‐4, 7, 8, 12‐15, 17‐20 | 3/3/3 |
| 14 | M | 12 | 1 y | R | Fr | GGM WHO I | 79 | IIA | Mono | 17 | 3 | — | 0/0/0 |
| 15 | M | 44 | 19 y | R | PC | mMCD II | 53 | IVB | Poly | 20 (+20) | 10 (0) | Continuous Gr6‐8, 10, 12‐14, 17‐18 | 4/4/4 |
| (Continuous Gr1, 10, 12, 18) | (4/4/4) | ||||||||||||
| 16 | M | 14 | 2 y | L | C | DNET WHO I | 87 | IB | Yes | 19 | 4 | Spikes Gr7, 8, 10, 12, 13, 16, 17 | 4/4/1 |
| 17 | M | 13 | 1 y | L | P | FCD 2B~ | 40 | IVB | Poly | 20 (+18) | 9 (0) | Continuous Gr7‐15, 19, 20 | 4/4/4 |
| (Continuous Gr12‐14, 16‐18) | (4/4/4) | ||||||||||||
| 18 | F | 3 | 6 wk | L | T | FCD 1A | 12a | IIIA | Mono | 20 | 8 | Spikes Gr1‐3, 6‐9, 12‐14, 18, 19 | 4/4/2 |
Note. Numbers in parentheses represent numbers of channels and resected channels in postresection recording.
Abbreviations: ~, in the context of tuberosclerosis complex; AED, antiepileptic drug; C, central; DNET, dysembryoplastic neuroepithelial tumor; F, female; FCD, focal cortical dysplasia; FR, fast ripple; Fr, frontal; GGM, ganglioglioma; GM, glioma; ioECoG, intraoperative electrocorticography; L, left; M, male; mMCD, mild malformation of cortical development; P, parietal; PC, parieto‐central; Pt, patient; PXA, pleomorphic xanthoastrocytoma; R, right; Ri, ripple; Sp, spike; T, temporal; TO, temporo‐occipital; WHO, World Health Organization grade.
This patient had a hemispherectomy 1 year after the first surgery and became seizure‐free afterward.