Abstract
Objective To investigate the lateralizing value of head deviation(HD) during complex partial seizures(CPS) in patients with refractory mesial temporal lobe epilepsy(mTLE). Methods Presurgical videotypes of 43 patients who were seizure-free for at least one year after temporal lobectomy were retrospectively reviewed. Attention was paid to the relationship between time and type of HD and the side of epileptogenic zone. Results HD was seen in 88 CPS from 43 patients who had total 206 CPS with or without secondary generalization. Both versive and non-versive HD displayed high positive predictive value (83%（33/40） and 88%(22/25)) for localization of an ipsilateral and contralateral seizure onset, respectively. Conclusion Both non-versive HD and versive HD during CPS in patients with mTLE are reliable lateralizing signs that can complement other diagnostic modalities in presurgical evaluation. Key words: Seizures; Epilepsy, temporal lobe; Head
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