Skip to main content

Baseline EEG pattern on continuous ICU EEG monitoring and incidence of seizures.

Publication ,  Journal Article
Swisher, CB; Shah, D; Sinha, SR; Husain, AM
Published in: J Clin Neurophysiol
April 2015

PURPOSE: To identify the probability of detecting nonconvulsive seizures based on the initial pattern seen in the first 30 minutes of continuous EEG (cEEG) monitoring. METHODS: Continuous EEG monitoring reports from 243 adult patients were reviewed, assessing the baseline cEEG monitoring pattern and the presence of seizures during the entire monitoring period. The baseline EEG patterns were classified into nine categories: seizures, lateralized periodic discharges, generalized periodic discharges, focal epileptiform discharges, burst suppression, asymmetric background, generalized slowing, generalized periodic discharges with triphasic morphology, and normal. RESULTS: Overall, 51 patients (21%) had nonconvulsive seizures at any time during cEEG monitoring. Notably, 112 patients had generalized slowing as the initial EEG pattern, and none of these patients were noted to have seizures. Seizure rates among the types of baseline EEG findings were as follows: lateralized periodic discharges (56%, n = 9), burst suppression (50%, n = 10), generalized periodic discharges (50%, n = 2), normal (33%, n = 3), focal epileptiform discharges (31%, n = 35), and asymmetric background (11%, n = 46). CONCLUSIONS: Patients with only generalized slowing seen on the baseline EEG recording are unlikely to develop seizures on subsequent cEEG monitoring. Depending on the clinical circumstance, the standard duration of cEEG recording (24-48 hours) may be unnecessary in patients with generalized slowing as their only cEEG abnormality.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

J Clin Neurophysiol

DOI

EISSN

1537-1603

Publication Date

April 2015

Volume

32

Issue

2

Start / End Page

147 / 151

Location

United States

Related Subject Headings

  • Young Adult
  • Seizures
  • Retrospective Studies
  • Neurology & Neurosurgery
  • Monitoring, Physiologic
  • Middle Aged
  • Male
  • Intensive Care Units
  • Incidence
  • Humans
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Swisher, C. B., Shah, D., Sinha, S. R., & Husain, A. M. (2015). Baseline EEG pattern on continuous ICU EEG monitoring and incidence of seizures. J Clin Neurophysiol, 32(2), 147–151. https://doi.org/10.1097/WNP.0000000000000157
Swisher, Christa B., Dharmen Shah, Saurabh R. Sinha, and Aatif M. Husain. “Baseline EEG pattern on continuous ICU EEG monitoring and incidence of seizures.J Clin Neurophysiol 32, no. 2 (April 2015): 147–51. https://doi.org/10.1097/WNP.0000000000000157.
Swisher CB, Shah D, Sinha SR, Husain AM. Baseline EEG pattern on continuous ICU EEG monitoring and incidence of seizures. J Clin Neurophysiol. 2015 Apr;32(2):147–51.
Swisher, Christa B., et al. “Baseline EEG pattern on continuous ICU EEG monitoring and incidence of seizures.J Clin Neurophysiol, vol. 32, no. 2, Apr. 2015, pp. 147–51. Pubmed, doi:10.1097/WNP.0000000000000157.
Swisher CB, Shah D, Sinha SR, Husain AM. Baseline EEG pattern on continuous ICU EEG monitoring and incidence of seizures. J Clin Neurophysiol. 2015 Apr;32(2):147–151.

Published In

J Clin Neurophysiol

DOI

EISSN

1537-1603

Publication Date

April 2015

Volume

32

Issue

2

Start / End Page

147 / 151

Location

United States

Related Subject Headings

  • Young Adult
  • Seizures
  • Retrospective Studies
  • Neurology & Neurosurgery
  • Monitoring, Physiologic
  • Middle Aged
  • Male
  • Intensive Care Units
  • Incidence
  • Humans