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  • Title: The lateralizing value of ictal clinical symptoms in uniregional temporal lobe epilepsy.
    Author: Steinhoff BJ, Schindler M, Herrendorf G, Kurth C, Bittermann HJ, Paulus W.
    Journal: Eur Neurol; 1998; 39(2):72-9. PubMed ID: 9520067.
    Abstract:
    In order to assess the lateralizing value of several ictal and postictal clinical symptoms in temporal lobe epilepsy (TLE), we analyzed 89 seizures of 20 left dominant patients with intractable left (n = 9) versus right (n = 11) TLE who had undergone successful anterior temporal lobectomy. In left TLE, movement arrest at seizure onset, postictal dysphasia > 120 s and postictal dyslexia > 180 s were the most typical findings and associated with a sensitivity of 94, 94, and 100%, respectively. The highest specificity of 100% each was evident for contralateral versions of eyes and head and dystonic posturing. In right TLE, the highest sensitivity was seen for whole-body movements at seizure onset, postictal dysphasia < 120 s and postictal dyslexia < 180 s with figures of 82, 87, and 93%, respectively. As compared to left TLE, contralateral version and dystonic posturing, ictal speech, and postictal dyslexia < 180 s each had a specificity of 100%. The careful combined analysis of certain ictal clinical signs combined with consistent findings of interictal EEG and neuroimaging studies may be often sufficient to proceed with epilepsy surgery without invasive recordings even if ictal scalp EEG is not unambiguous.
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