Table 2.
Findings of presurgical work-up, surgical procedures performed, pathology results, and final outcomes in 11 patients with SSA and/or PVA.
| Pt | Risk factor | MRI | Ictal SPECT | sEEG | Intracranial electrode study | First surgery | Second surgery |
FU (yrs) |
Outcome | Re-investigation | Third surgery | Final outcome | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Performed (y/n) |
Coverage | Focus | ||||||||||||
| 1 | None | R PT Cavernoma | NL | Loc | N | — | — | R cavernoma resection, corticectomy | ECoG, perilesional corticectomy | 4 | IIIa | R post T, R T et lat inf, R H, R I | R ATL | Ia |
| 2 | Fam | L T pilocytic astrocytoma | NL | Loc | N | — | — | L tumor resection | — | 1 | Ia (Rx) | — | — | — |
| 3 | None | R HS | — | Loc | N | — | — | R SAH | R ATL including TO | 1 | IIIa | R I, residual TL, FPO, OF | R insulectomy | Ia |
| 4 | None | R HS | NL | Loc | Y | R F, T, Pd, A, H | R MT | R ATL | — | 7 | IIb | — | — | |
| 5 | Encephalitis (6 months) residual R hemiparesis, mental retardation | L HS, L hemisph atrophia | L | Lat | Y | L H, L A, L subtemp ant post, L FT | L MT | L ATL | — | 9 | Ib | — | — | |
| 6 | None | R HS | L | Loc | N | — | — | R ATL | — | 8 | Ia (Rx) | — | — | — |
| 7 | Viral encephalitis (8 months) | L HA | — | Loc | N | — | — | L ATL | — | 13 | Ia (No Rx) | — | — | — |
| 8 | Encephalitis (8 months) | R HA | NL | Loc | Y | R H, R A, L H | R MT | R ATL | — | 13 | IIc | — | — | — |
| 9 | Meningitis (12 months) | L F, L T atrophia, L T gliosis | — | NL | Y | NA | L MT | L ATL | — | 4 | Ib | — | — | — |
| 10 | None | — | — | Lat | Y | R A, R H, R PT, R cingular gyrus ant, R SMA, L H, L cingular gyrus ant | R MT | R ATL | — | 10 | Ia (No Rx) | — | — | — |
| 11 | None | L HS | NL | Lat | N | — | — | L SAH | L ATL (4 cm T1, 5 cm T2, 7 cm T3) | 1 | IIb | — | — | — |
MRI: magnetic resonance imaging; sEEG: scalp EEG; Y: yes; N: no; SSA: somatosensory aura; F: frontal; T: temporal; P: parietal; O: occipital; A: amygdala; H: hippocampus; R: right; L: left; MT: mesial temporal lobe; FU: followup; Fam: family history of epilepsy; PT: posterior temporal; HS: hippocampal sclerosis; HA: hippocampal atrophy; Loc: localized; Lat: lateralized to hemisphere; SAH: selective amygdalohippocampectomy; ATL: anterior temporal lobectomy; ECoG: electrocorticography; TO: temporal operculum; TFG: temporal fusiform gyrus; I: insula; NL: nonlocalizing; hemisph: hemisphere; Rx: medication.