Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
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00302841026182
00306932607174
alsfakia@gmail.com

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Σάββατο 7 Οκτωβρίου 2017

Added clinical value of the inferior temporal EEG electrode chain

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Publication date: Available online 7 October 2017
Source:Clinical Neurophysiology
Author(s): Anders Bach Justesen, Ann Berit Eskelund Johansen, Noomi Ida Martinussen, Danielle Wasserman, Daniella Terney, Pirgit Meritam, Elena Gardella, Sándor Beniczky
ObjectiveTo investigate the diagnostic added value of supplementing the 10-20 EEG array with six electrodes in the inferior temporal chain.MethodsEEGs were recorded with 25 electrodes: 19 positions of the 10-20 system, and six additional electrodes in the inferior temporal chain (F9/10, T9/10, P9/10). Five-hundred consecutive standard and sleep EEG recordings were reviewed using the 10-20 array and the extended array. We identified the recordings with EEG abnormalities that had peak negativities at the inferior temporal electrodes, and those that only were visible at the inferior temporal electrodes.ResultsFrom the 286 abnormal recordings, the peak negativity was at the inferior temporal electrodes in 81 cases (28.3%) and only visible at the inferior temporal electrodes in eight cases (2.8%). In the sub-group of patients with temporal abnormalities (n=134), these represented 59% (peak in the inferior chain) and 6% (only seen at the inferior chain).ConclusionsAdding six electrodes in the inferior temporal electrode chain to the 10-20 array improves the localization and identification of EEG abnormalities, especially those located in the temporal region.SignificanceOur results suggest that inferior temporal electrodes should be added to the EEG array, to increase the diagnostic yield of the recordings.



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