“…Neurological syndromes lasting less than 24 h are, by definition, time-limited events of neurological dysfunction and, for that reason, time interval between clinical manifestations and EEG might influence the presence or the type of electroencephalographic abnormalities. In the De Reuch and Van Maele study, 100% of patients with seizures but less than half of patients with definitive TIA underwent an EEG in the first 24 h. Furthermore, temporal slowing is a frequent finding in older patients ( Samson-Dollfus et al, 1991 ) and seizure patients were older than TIA patients in the same study. In our series, time until EEG and age were not significantly different in patients with seizures and with TIA.…”