PMID- 26615579 OWN - NLM STAT- MEDLINE DCOM- 20161019 LR - 20220331 IS - 1532-2688 (Electronic) IS - 1059-1311 (Linking) VI - 34 DP - 2016 Jan TI - Color density spectral array of bilateral bispectral index system: Electroencephalographic correlate in comatose patients with nonconvulsive status epilepticus. PG - 18-25 LID - S1059-1311(15)00264-2 [pii] LID - 10.1016/j.seizure.2015.11.001 [doi] AB - PURPOSE: to describe the characteristics of the color density spectral array (CDSA) of bilateral bispectral index (b-BIS) monitoring system in patients with comatose nonconvulsive status epilepticus (NCSE). We hypothesized that CDSA could be helpful for monitoring NCSE in critically subjects if continuous EEG (cEEG) is not available. METHODS: we retrospectively analyzed comatose patients admitted to our neurological intensive care unit (NICU) from 2011 to 2014 with a diagnosis of definitive NCSE that underwent b-BIS monitoring for at least 24h to guide anesthetic sedation. Clinical, electroencephalography and neuroimaging findings were analyzed. Moreover, all parameters from the b-BIS data including the CDSA were reviewed during periods of NCSE (NCSE pattern) and profound sedation (sedation pattern). RESULTS: 15 NCSE patients were included. The delay from the diagnosis of NCSE to the onset of b-BIS monitoring was 8 (0.5-31)h and total time of b-BIS monitoring 7.8+/-6.5 days. CDSA during NCSE pattern was characterized by continuous or intermittent red and dark red tones, spectral edge frequency (SEF) in the delta-theta range, with or without asymmetry and BIS number trend with significant variability. In contrast, CDSA during sedation revealed predominance of orange, yellow, green and occasionally blue tones, SEF in the alpha-beta range, absence of asymmetry and stability of BIS number. CONCLUSIONS: b-BIS monitoring system and, in particular, CDSA used by nonexpert NICU personnel may be helpful to follow-up episodes of NCSE, to detect recurrences of nonconvulsive seizures (NCSzs), and to monitor profound anesthetic therapy in comatose patients when cEEG is not available. CI - Copyright (c) 2015 British Epilepsy Association. Published by Elsevier Ltd. All rights reserved. FAU - Hernandez-Hernandez, Miguel A AU - Hernandez-Hernandez MA AD - Department of Intensive Medicine, Marques de Valdecilla University Hospital, Santander, Cantabria, Spain; Biomedical Research Institute (IDIVAL), Santander, Spain. Electronic address: mahernandez@humv.es. FAU - Fernandez-Torre, Jose L AU - Fernandez-Torre JL AD - Department of Clinical Neurophysiology, Marques de Valdecilla University Hospital, Santander, Cantabria, Spain; Biomedical Research Institute (IDIVAL), Santander, Spain; Department of Physiology and Pharmacology, University of Cantabria (UNICAN), Santander, Cantabria, Spain. LA - eng PT - Journal Article DEP - 20151110 PL - England TA - Seizure JT - Seizure JID - 9306979 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Coma/*complications/physiopathology MH - *Consciousness Monitors MH - Electroencephalography/*methods MH - Female MH - Humans MH - Male MH - Middle Aged MH - Retrospective Studies MH - Status Epilepticus/*diagnosis/physiopathology OTO - NOTNLM OT - Bispectral index OT - Color density spectral array OT - Neurointensive care unit OT - Nonconvulsive status epilepticus OT - Quantitative EEG OT - Seizure EDAT- 2015/11/30 06:00 MHDA- 2016/12/30 06:00 CRDT- 2015/11/30 06:00 PHST- 2015/07/27 00:00 [received] PHST- 2015/10/05 00:00 [revised] PHST- 2015/11/03 00:00 [accepted] PHST- 2015/11/30 06:00 [entrez] PHST- 2015/11/30 06:00 [pubmed] PHST- 2016/12/30 06:00 [medline] AID - S1059-1311(15)00264-2 [pii] AID - 10.1016/j.seizure.2015.11.001 [doi] PST - ppublish SO - Seizure. 2016 Jan;34:18-25. doi: 10.1016/j.seizure.2015.11.001. Epub 2015 Nov 10.