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J Clin Neurophysiol. 2016 Apr;33(2):133-40. doi: 10.1097/WNP.0000000000000230.

Development and Feasibility Testing of a Critical Care EEG Monitoring Database for Standardized Clinical Reporting and Multicenter Collaborative Research.

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*Brigham and Women's Hospital, Boston, Massachusetts, U.S.A.; †Department of Neurology, Emory University Hospital, Atlanta, Georgia, U.S.A.; ‡Department of Neurology, Columbia University, New York, New York, U.S.A.; §Atlantic Health Systems-Northeast Regional Epilepsy Group, Hackensack, New Jersey, U.S.A.; ‖Department of Neurology, Beth Israel Deaconess Hospital, Boston, Massachusetts, U.S.A.; ¶Children's Hospital of Boston, Boston, Massachusetts, U.S.A.; #Department of Neurology, University of Colorado School of Medicine, Aurora, Colorado, U.S.A.; **The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, U.S.A.; ††Section of Pediatric Neurocritical Care, Department of Pediatrics, Northwestern University, Chicago, Illinois, U.S.A.; ‡‡Department of Neurology, Duke University Medical Center, Durham, North Carolina, U.S.A.; §§Johns Hopkins University, Baltimore, Maryland, U.S.A.; ‖‖Massachusetts General Hospital, Boston, Massachusetts, U.S.A.; ¶¶Northwestern University Feinberg School of Medicine, Chicago, Illinois, U.S.A.; ##Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A.; ***University of Alabama at Birmingham, Birmingham, Alabama, U.S.A.; †††UT Southwestern Medical Center, Dallas, Texas, U.S.A.; ‡‡‡Vanderbilt University Medical Center, Nashville, Tennessee, U.S.A.; §§§Department of Biostatistics, Columbia University, New York, New York, U.S.A.; ‖‖‖Yale Medical Center, New Haven, Connecticut, U.S.A.; ¶¶¶Stanford University School of Medicine, Stanford, California, U.S.A.; ###Department of Neurology, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A.; and ****Division of Neurology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.



The rapid expansion of the use of continuous critical care electroencephalogram (cEEG) monitoring and resulting multicenter research studies through the Critical Care EEG Monitoring Research Consortium has created the need for a collaborative data sharing mechanism and repository. The authors describe the development of a research database incorporating the American Clinical Neurophysiology Society standardized terminology for critical care EEG monitoring. The database includes flexible report generation tools that allow for daily clinical use.


Key clinical and research variables were incorporated into a Microsoft Access database. To assess its utility for multicenter research data collection, the authors performed a 21-center feasibility study in which each center entered data from 12 consecutive intensive care unit monitoring patients. To assess its utility as a clinical report generating tool, three large volume centers used it to generate daily clinical critical care EEG reports.


A total of 280 subjects were enrolled in the multicenter feasibility study. The duration of recording (median, 25.5 hours) varied significantly between the centers. The incidence of seizure (17.6%), periodic/rhythmic discharges (35.7%), and interictal epileptiform discharges (11.8%) was similar to previous studies. The database was used as a clinical reporting tool by 3 centers that entered a total of 3,144 unique patients covering 6,665 recording days.


The Critical Care EEG Monitoring Research Consortium database has been successfully developed and implemented with a dual role as a collaborative research platform and a clinical reporting tool. It is now available for public download to be used as a clinical data repository and report generating tool.

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