Density spectral array for seizure identification in critically ill children

Alyssa D. Pensirikul, Lauren A. Beslow, Sudha K. Kessler, Sarah M. Sanchez, Alexis A. Topjian, Dennis J. Dlugos, Nicholas S. Abend

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

Purpose: We evaluated the validity and interrater reliability of encephalographer interpretation of color density spectral array EEG for seizure identification was evaluated in critically ill children and explored predictors of accurate seizure identification. Methods: Conventional EEG tracings from 21 consecutive critically ill children were scored for electrographic seizures. Four 2-hour long segments from each subject were converted to 8-channel color density spectral array displays, yielding 84 images. Eight encephalographers received color density spectral array training and circled elements thought to represent seizures. Images were reviewed in random order (Group A) or with information regarding seizure presence in the initial 30 minutes and with subject images in order (Group B). Sensitivity, specificity, and interrater reliability were calculated. Factors associated with color density spectral array seizure identification were assessed. Results: Seizure prevalence was 43% on conventional EEG. Specificity was significantly higher for Group A than Group B (92.3% vs. 78.2%, P < 0.00). Sensitivity was not significantly different between Groups A and B (64.8% vs. 75%, P = 0.22). Interrater reliability was moderate in both groups. Ten percent of images were falsely classified as containing a seizure. Seizure duration ≥2 minutes predicted identification (P < 0.001). Conclusions: Color density spectral array may be a useful screening tool for seizure identification by encephalographers, but it does not identify all seizures and false positives occur.

Original languageEnglish (US)
Pages (from-to)371-375
Number of pages5
JournalJournal of Clinical Neurophysiology
Volume30
Issue number4
DOIs
StatePublished - Aug 2013

Keywords

  • Color density spectral array
  • EEG
  • EEG monitoring.
  • Pediatric
  • Seizure

ASJC Scopus subject areas

  • Physiology
  • Neurology
  • Clinical Neurology
  • Physiology (medical)

Fingerprint Dive into the research topics of 'Density spectral array for seizure identification in critically ill children'. Together they form a unique fingerprint.

  • Cite this

    Pensirikul, A. D., Beslow, L. A., Kessler, S. K., Sanchez, S. M., Topjian, A. A., Dlugos, D. J., & Abend, N. S. (2013). Density spectral array for seizure identification in critically ill children. Journal of Clinical Neurophysiology, 30(4), 371-375. https://doi.org/10.1097/WNP.0b013e31829de01c