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Nasopharyngeal electrodes in temporal lobe epilepsy: A reappraisal of their diagnostic utility

Authors
 Soo Hwan Yim  ;  Kyoo Ho Cho  ;  Yun Ho Choi  ;  Hye Ihn Kim  ;  Yang-Je Cho  ;  Kyoung Heo 
Citation
 CLINICAL NEUROPHYSIOLOGY, Vol.132(7) : 1741-1751, 2021-07 
Journal Title
CLINICAL NEUROPHYSIOLOGY
ISSN
 1388-2457 
Issue Date
2021-07
Keywords
EEG ; Interictal epileptiform discharges ; Interrater agreement ; Nasopharyngeal electrode ; Temporal lobe epilepsy
Abstract
Objective: To compare electroencephalography (EEG) recordings with nasopharyngeal electrodes (NPEs) plus anterior temporal electrodes (ATEs) (NPE recordings) and those with only ATEs (non-NPE recordings) for the detection of interictal epileptiform discharges (IEDs) in patients with suspected temporal lobe epilepsy (TLE). Methods: We retrospectively analyzed the initial EEGs of 229 patients that were recorded simultaneously with ATEs and NPEs in addition to the electrodes of the 10-20 system of electrode placement. Two data sets of NPE and non-NPE recordings were reviewed independently by three interpreters with differing degrees of experience. Discordant findings in the interpretation among the three interpreters were resolved by a consensus to yield final results. Results: IEDs were detected in 76.4% of patients with NPE recordings compared to 55.5% with non-NPE recordings (p < 0.01). Bilateral independent IEDs were found in 26.2% and 11.4% of EEGs with NPE and non-NPE recordings (p < 0.01). The degree of agreement for the detection of IEDs among the three interpreters was higher with the NPE than with non-NPE recordings (κappa score, 0.70 vs. 0.54). The increased diagnostic yield of NPE recordings for the detection of IEDs was particularly prominent in patients with mesial and non-lesional TLEs. Conclusions: EEG recordings using NPEs are useful to improve the sensitivity and level of agreement among interpreters for the detection of IEDs in patients with TLE. Significance: NPE recordings may be recommended in routine EEGs for the evaluation of patients with suspected TLE.
Full Text
https://www.sciencedirect.com/science/article/pii/S1388245721004934
DOI
10.1016/j.clinph.2021.02.395
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurology (신경과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hye Ihn(김혜인)
Cho, Kyoo Ho(조규호) ORCID logo https://orcid.org/0000-0003-2402-7198
Cho, Yang Je(조양제)
Heo, Kyoung(허경)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/184106
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