Journal article
Evaluation of point-of-care thumb-size bispectral electroencephalography device to quantify delirium severity and predict mortality
British journal of psychiatry, Vol.220(6), pp.322-329
08/02/2021
DOI: 10.1192/bjp.2021.101
PMID: 35049468
Abstract
Background We have developed the bispectral electroencephalography (BSEEG) method for detection of delirium and prediction of poor outcomes. Aims To improve the BSEEG method by introducing a new EEG device. Method In a prospective cohort study, EEG data were obtained and BSEEG scores were calculated. BSEEG scores were filtered on the basis of standard deviation (s.d.) values to exclude signals with high noise. Both non-filtered and s.d.-filtered BSEEG scores were analysed. BSEEG scores were compared with the results of three delirium screening scales: the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU), the Delirium Rating Scale-Revised-98 (DRS) and the Delirium Observation Screening Scale (DOSS). Additionally, the 365-day mortalities and the length of stay (LOS) in the hospital were analysed. Results We enrolled 279 elderly participants and obtained 620 BSEEG recordings; 142 participants were categorised as BSEEG-positive, reflecting slower EEG activity. BSEEG scores were higher in the CAM-ICU-positive group than in the CAM-ICU-negative group. There were significant correlations between BSEEG scores and scores on the DRS and the DOSS. The mortality rate of the BSEEG-positive group was significantly higher than that of the BSEEG-negative group. The LOS of the BSEEG-positive group was longer compared with that of the BSEEG-negative group. BSEEG scores after s.d. filtering showed stronger correlations with delirium screening scores and more significant prediction of mortality. Conclusions We confirmed the usefulness of the BSEEG method for detection of delirium and of delirium severity, and prediction of patient outcomes with a new EEG device.
Details
- Title: Subtitle
- Evaluation of point-of-care thumb-size bispectral electroencephalography device to quantify delirium severity and predict mortality
- Creators
- Takehiko Yamanashi - Stanford UniversityKaitlyn J. Crutchley - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USANadia E. Wahba - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAEleanor J. Sullivan - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAKatie R. Comp - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAMari Kajitani - Fujitsu Labs Ltd, Tokyo, JapanTammy Tran - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAManisha V. Modukuri - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAPedro S. Marra - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAFelipe M. Herrmann - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAGloria Chang - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAZoe-Ella M. Anderson - Univ Iowa, Dept Psychiat, Carver Coll Med, Iowa City, IA 52242 USAMasaaki Iwata - Tottori UniversityKen Kobayashi - Fujitsu Labs Ltd, Tokyo, JapanKoichi Kaneko - Tottori UniversityYuhei Umeda - Fujitsu Labs Ltd, Tokyo, JapanYoshimasa Kadooka - Fujitsu Labs Ltd, Tokyo, JapanSangil Lee - Univ Iowa, Dept Emergency Med, Carver Coll Med, Iowa City, IA USAEri Shinozaki - Univ Iowa, Dept Internal Med, Carver Coll Med, Iowa City, IA 52242 USAMatthew D. Karam - Univ Iowa, Dept Orthoped Surg, Carver Coll Med, Iowa City, IA USANicolas O. Noiseux - Univ Iowa, Dept Orthoped Surg, Carver Coll Med, Iowa City, IA USAGen Shinozaki - Stanford University
- Resource Type
- Journal article
- Publication Details
- British journal of psychiatry, Vol.220(6), pp.322-329
- DOI
- 10.1192/bjp.2021.101
- PMID
- 35049468
- NLM abbreviation
- Br J Psychiatry
- ISSN
- 0007-1250
- eISSN
- 1472-1465
- Publisher
- Cambridge Univ Press
- Number of pages
- 8
- Grant note
- NSF; National Science Foundation (NSF) Fujitsu Laboratories Ltd. National Institutes of Health; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA
- Language
- English
- Date published
- 08/02/2021
- Academic Unit
- Psychiatry; Emergency Medicine; Iowa Neuroscience Institute; Orthopedics and Rehabilitation; Injury Prevention Research Center; General Internal Medicine; Neurosurgery; Internal Medicine
- Record Identifier
- 9984297138602771
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