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  • Title: Lower limb automatism in surgically treated temporal lobe epilepsy patients: Clinical and electrophysiological features.
    Author: Khasiyev F, Tezer FI, Saygi S.
    Journal: J Clin Neurosci; 2019 Nov; 69():51-54. PubMed ID: 31439484.
    Abstract:
    Lower limb automatism has not been known well in temporal lobe epilepsy (TLE) patients. This study investigated the distribution of risk factors, EEG features, and pathology types in surgically treated TLE patients. We also made a comparison of this group to surgically treated TLE patients with isolated hand automatism. Twenty TLE patients with lower limb automatism (Group 1) and 20 TLE patients with isolated hand automatisms (Group 2) of similar age/sex distribution were enrolled in our study. Male/female ratio was 14/6 in both groups. Demographical characteristics, risk factors, pathology types and EEG features were compared between two groups. 15 and 8 patients out of Group 1 (75%) and Group 2 (40%) respectively, were undergone right-sided surgery. Ipsilateral lower limb automatism was seen in 80% of patients. The age of epilepsy onset was earlier in patients with lower limb automatism (p = 0.02). There was no significant difference between the groups in terms of the risk factors and other demographical characteristics. Although, EEG features were not different, onset of ictal EEG changes in the first 10 seconds were seen less frequently in Group 1(6 vs 9 patients) (p = 0.31). Hippocampal sclerosis as a pathology type was detected in 11 patients (55%) of Group 1, whereas in 16 patients (80%) of Group 2. TLE patients with lower limb automatism have an earlier age of epilepsy onset and the onset of ictal EEG changed in the first 10 seconds of clinical seizure and pure HS pathology was rarer than in TLE patients with hand automatisms. Further studies are needed to shed more light on the pathophysiology of lower extremity automatisms in TLE patients.
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