Table 1.

Clinical details, site of subdural electrodes, and postoperative outcome

Case: Age/sexDiagnosis: Pre-op CNS signsDrugs (mg/d)Site of subdural electrodesLesion site and histologyPost-op outcomeMuscle(s) analyzed
1 32 FEpilepsyNoneLeft motor cortex (anterior to central sulcus)Spike focus in face area. MRI head normal. No histology available.No resection performed.Right abductor Pollicis brevis
2 53 MLeft AVM Right hemianopia, weak right leg, severe sensory loss right side (absent proprioception in the fingers). Normal power in right arm. Bilaterally extensor plantar responses.Carbamazepine, 400 mg; Frisium, 10 mg; Amytriptyline, 150 mgLeft sensorimotor cortexMRI head showed normal cortex but an AVM in the left thalamus and internal capsule. No histology available.No resection performed.Right deltoid Right wrist extensors
3 23 FEpilepsyCarbamazepine, 1300 mgRight sensorimotor cortexPost-central cortical dysplasia including sensory hand area as determined by electrical stimulation and median SEPs.Engel class IILeft wrist extensors and flexors
4 20 FEpilepsyGabapentin, 1600 mg; Phenytoin, 400 mgRight sensorimotor cortexCortical dysplasia in right superior frontal gyrusEngel 1aLeft wrist extensors
5 32 MEpilepsyGabapentin, 1200 mg; Carbamazepine, 1600 mgRight sensorimotor cortexRight frontal cortical dysplasia, sparing motor hand area as determined by intraoperative stimulationEngel 1aLeft wrist extensors and left first dorsal interosseous.
6 34 MEpilepsyCarbamazepine, 1800 mgLeft motor cortex (anterior to central sulcus)High resolution MRI was normalEngel 1aRight wrist extensors and flexors and deltoid
  • Seizures are classified according to measures described in Engel et al. (1993).