Research Article
Hippocampography Guides Consistent Mesial Resections in Neocortical Temporal Lobe Epilepsy
Table 1
Patient characteristics.
| | Pt | Mesial ECoG
(EHG-guided hippocampectomy) | Lateral ECoG
(unguided hippocampectomy) | Side | Age
(y) | Sex | Lesion
histopathology | Lesion location
on MRI | MTS | Hippocampectomy
(cm) | Follow-
up
(y) | Engel I |
| | 1 | EHG(D) | | | 38 | M | Glioma | NTLE+M | No | 1 | 1.15 | Yes | | 2 | EHG(S) | | | 15 | F | Ganglioglioma | NTLE+M+E | No | 1 | 4.05 | No | | 3 | EHG(S) | | | 24 | F | Encephalomalacia | NTLE | No | 1.5 | 0.8 | Yes | | 4 | EHG(D) | | | 24 | M | Dysplasia | NTLE+M | Yes | 2 | 2.05 | Yes | | 5 | EHG(D)+FO | | | 20 | M | Encephalocele | NTLE | | 2 | 0.79 | Yes | | 6 | EHG(D) | | | 27 | M | Dysplasia | NTLE | | 2 | 1.8 | Yes | | 7 | EHG(D) | Grid | | 7 | M | Encephalomalacia | NTLE+M+E | Yes | 2 | 0.03 | Yes | | 8 | EHG(D) | | | 30 | F | Dysplasia | NTLE | No | 2 | 0.11 | Yes | | 9 | EHG(D) | | | 66 | M | Oligodendroglioma | NTLE+M | No | 2 | 1.3 | Yes | | 10 | EHG(D)+FO | | | 33 | M | Glioma | NTLE+M | No | 2 | 4.22 | Yes | | 11 | EHG(D)+FO | | | 33 | M | Glioma | NTLE+M | Yes | 2.5 | 2.5 | Yes | | 12 | EHG(D+S) | | | 31 | F | Astrocytoma | NTLE+M | No | 2.5 | 2.79 | Yes | | 13 | EHG(D) | | | 51 | F | Dysplasia | NTLE | No | 4 | 1.25 | No | | 14 | EHG(D) | | | 46 | F | Glioma | NTLE+M | Yes | 4.5 | 0.33 | Yes | | 15 | | Grid | | 18 | F | Dysplasia | NTLE | No | 0.5 | 4.63 | Yes | | 16 | | Strip | | 44 | M | Glioma | NTLE+E | Yes | 1.5 | 0.26 | Yes | | 17 | | Grid + strip | | 27 | M | Dysplasia | NTLE+E | Yes | 1.5 | 1.1 | No | | 18 | | Grid | | 54 | F | Oligodendroglioma | NTLE+M+E | No | 1.5 | 2.01 | No | | 19 | | Grid | | 34 | M | e | NTLE+M+E | No | 2 | 4.2 | No | | 20 | | Grid | | 29 | F | Glioma | NTLE | | 2.5 | 2 | No | | 21 | | Grid | | 62 | M | Encephalomalacia | NTLE | | 2.5 | 2.23 | No | | 22 | | Grid | | 24 | M | Astrocytosis | NTLE+M+E | No | 2.5 | 2.6 | No | | 23 | | Strip | | 22 | F | Dysplasia | NTLE+M+E | Yes | 5 | 2.16 | Yes | | 24 | | Grid | | 74 | F | Encephalomalacia | NTLE+E | No | 5 | 0.03 | Yes | | 25 | | Grid + strip | | 33 | F | Dysplasia | NTLE+M+E | No | 5 | 3.1 | No | | 26 | | Grid + strip | | 32 | M | | NTLE+M+E | Yes | 8 | 1.07 | Yes |
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Dysplasia, Heterotopia, and Polymicrogyria; Encephalomalacia and Polymicrogyria; EHG(D): hippocampography using depth electrode; EHG(S): hippocampography using strip electrode; FO: foramen ovale electrode; D: dominant hemisphere; ND: nondominant hemisphere; H: hemispheric dominance based on handedness; W: hemispheric dominance based on Wada test; NTLE+M: neocortical temporal lobe epileptogenic lesion with mesial temporal invasion; NTLE+E: neocortical temporal lobe epileptogenic lesion with extratemporal invasion; NTLE+M+E: neocortical temporal lobe epileptogenic lesion with mesial temporal and extratemporal invasion.
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