Diagnostic yield of standard-wake and sleep EEG recordings.

Autor: Meritam P; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark., Gardella E; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark; University of Southern Denmark, Odense, Denmark., Alving J; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark; Department of Clinical Neurophysiology, Rigshospitalet, Copenhagen, Denmark., Terney D; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark., Cacic Hribljan M; Department of Clinical Neurophysiology, Rigshospitalet, Copenhagen, Denmark., Beniczky S; Department of Clinical Neurophysiology, Danish Epilepsy Centre, Dianalund, Denmark; Department of Clinical Neurophysiology, Aarhus University Hospital, Aarhus, Denmark. Electronic address: sbz@filadelfia.dk.
Jazyk: angličtina
Zdroj: Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology [Clin Neurophysiol] 2018 Apr; Vol. 129 (4), pp. 713-716. Date of Electronic Publication: 2018 Feb 03.
DOI: 10.1016/j.clinph.2018.01.056
Abstrakt: Objective: To investigate whether Posterior Dominant Rhythm (PDR) can be reliably assessed in sleep-EEG recordings and to investigate the diagnostic yield of standard-wake and sleep-recordings.
Methods: EEG recordings of 303 consecutive patients aged 18-88 years were analyzed. All patients had both standard-wake and sleep-recordings, including patients who had abnormal standard recordings. Melatonin was used in 6% of sleep EEGs, and sleep deprivation in 94%. The mean duration of sleep was 41 min. We measured the PDR frequency in standard and sleep-recordings, both before and after sleep. We compared the diagnostic yield of standard-wake and sleep EEG recordings.
Results: Compared to standard EEG, sleep-recordings showed a significantly lower PDR frequency, both when measured before and after sleep (p < 0.001). One-hundred-fifty-six patients (51%) had normal standard recordings, and 35 of them (22%) had abnormal findings in the sleep-recording. One-hundred-forty-seven patients had abnormal standard recordings and in 16 of them (11%) these abnormalities were not present in sleep-recording.
Conclusions: PDR is significantly slower in the wake periods of sleep-recordings, compared to standard wake recordings.
Significance: Sleep and standard wake recordings are complementary.
(Copyright © 2018 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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