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BMC Neurology
Published in: BMC Neurology 1/2017

Open Access 01-12-2017 | Case report

Ipsiversive ictal eye deviation in inferioposterior temporal lobe epilepsy—Two SEEG cases report

Authors: Wei Zhang, Xingzhou Liu, Lijun Zuo, Qiang Guo, Qi chen, Yongjun Wang

Published in: BMC Neurology | Issue 1/2017

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Abstract

Background

Versive seizure characterized by conjugate eye movement during epileptic seizure has been considered commonly as one of the most valuable semiological signs for epilepsy localization, especially for frontal lobe epilepsy. However, the lateralizing and localizing significance of ictal eye deviation has been questioned by clinical observation of a series of focal epilepsy studies, including frontal, central, temporal, parietal and occipital epilepsy.

Case presentation

Two epileptic cases characterized by ipsiversive eye deviation as initial clinical sign during the habitual epileptic seizures are presented in this paper. The localization of the epileptogenic zone of both of the cases has been confirmed as inferioposterior temporal region by the findings of ictal stereoelectroencephalography (SEEG) and a good result after epileptic surgery. Detailed analysis of the exact position of the key contacts of the SEEG electrodes identified the overlap between the location of the epileptogenic zone and human MT/MST complex, which play a crucial role in the control of smooth pursuit eye movement.

Conclusion

Ipsiversive eye deviation could be the initial clinical sign of inferioposterior temporal lobe epilepsy and attribute to the involvement of human MT/MST complex, especially human MST which was located on the anterior/dorsal bank of the anterior occipital sulcus (AOS).
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Metadata
Title
Ipsiversive ictal eye deviation in inferioposterior temporal lobe epilepsy—Two SEEG cases report
Authors
Wei Zhang
Xingzhou Liu
Lijun Zuo
Qiang Guo
Qi chen
Yongjun Wang
Publication date
01-12-2017
Publisher
BioMed Central
Published in
BMC Neurology / Issue 1/2017
Electronic ISSN: 1471-2377
DOI
https://doi.org/10.1186/s12883-017-0811-8

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