BOB, Petr, Robert ROMAN, Miroslav SVĚTLÁK, Miloslav KUKLETA, Jan CHLÁDEK and Milan BRÁZDIL. Preictal Dynamics of EEG Complexity in Intracranially Recorded Epileptic Seizure A Case Report. Medicine. Philadelphia: Lippincott Williams & Wilkins, 2014, vol. 93, No 23, p. "nestránkováno", 4 pp. ISSN 0025-7974. Available from: https://dx.doi.org/10.1097/MD.0000000000000151.
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Basic information
Original name Preictal Dynamics of EEG Complexity in Intracranially Recorded Epileptic Seizure A Case Report
Authors BOB, Petr (203 Czech Republic, belonging to the institution), Robert ROMAN (203 Czech Republic, belonging to the institution), Miroslav SVĚTLÁK (203 Czech Republic, belonging to the institution), Miloslav KUKLETA (203 Czech Republic, belonging to the institution), Jan CHLÁDEK (203 Czech Republic, belonging to the institution) and Milan BRÁZDIL (203 Czech Republic, guarantor, belonging to the institution).
Edition Medicine, Philadelphia, Lippincott Williams & Wilkins, 2014, 0025-7974.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30000 3. Medical and Health Sciences
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 5.723
RIV identification code RIV/00216224:14740/14:00079202
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1097/MD.0000000000000151
UT WoS 000345521300009
Keywords in English CORRELATION DIMENSION; CONSCIOUSNESS; FRAMEWORK
Tags kontrola MP, MP, rivok
Tags International impact, Reviewed
Changed by Changed by: doc. MUDr. Robert Roman, Ph.D., učo 18403. Changed: 4/3/2017 10:08.
Abstract
Recent findings suggest that neural complexity reflecting a number of independent processes in the brain may characterize typical changes during epileptic seizures and may enable to describe preictal dynamics. With respect to previously reported findings suggesting specific changes in neural complexity during preictal period, we have used measure of pointwise correlation dimension (PD2) as a sensitive indicator of nonstationary changes in complexity of the electroencephalogram (EEG) signal. Although this measure of complexity in epileptic patients was previously reported by Feucht et al,(8) it was not used to study changes in preictal dynamics. With this aim to study preictal changes of EEG complexity, we have examined signals from 11 multicontact depth (intracerebral) EEG electrodes located in 108 cortical and subcortical brain sites, and from 3 scalp EEG electrodes in a patient with intractable epilepsy, who underwent preoperative evaluation before epilepsy surgery. From those 108 EEG contacts, records related to 44 electrode contacts implanted into lesional structures and white matter were not included into the experimental analysis. The results show that in comparison to interictal period (at about 8-6 minutes before seizure onset), there was a statistically significant decrease in PD2 complexity in the preictal period at about 2 minutes before seizure onset in all 64 intracranial channels localized in various brain sites that were included into the analysis and in 3 scalp EEG channels as well. Presented results suggest that using PD2 in EEG analysis may have significant implications for research of preictal dynamics and prediction of epileptic seizures.
Links
ED1.1.00/02.0068, research and development projectName: CEITEC - central european institute of technology
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