Table 2. Description of collected data.
| Demographic data | Age |
| Gender | |
| Handedness | |
| Age at epilepsy onset | |
| Duration of epilepsy | |
| Aetiology | |
| Structural Imaging (MRI epilepsy protocol) | Lesional/non-lesional |
| Type of lesion | |
| Extent of lesion | |
| Localisation of lesion | |
| Non-invasive long-term video-EEG monitoring | Interictal EEG |
| Ictal EEG | |
| Semiology | |
| Neuropsychology (NPSY) | Localising value of NPSY |
| Side of localisation | |
| Cognitive domain | |
| Auxiliary diagnostic methods | Fluordesoxyglucose positron emission tomography (FDG-ET) |
| Magnetic source imaging | |
| Electrical source imaging | |
| Ictal hexamethylpropyleneamine oxime versus single-photon emission computerised tomography | |
| Stereoelectroencephalography | Side of implantation |
| Localisation of implantation | |
| Number of electrodes | |
| Interictal EEG | |
| Ictal EEG | |
| Extent of identified seizure onset zone | |
| Epilepsy surgery | Type of surgery |
| Localisation of surgery | |
| Histology | |
| Outcome | Duration of follow-up (FU) |
| Outcome according to ILAE (International League Against Epilepsy) definition at last FU | |
| Outcome according to Engel classification at last FU |
EEGelectroencephalography