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ECT seizure duration: reliability of manual and computer-automated determinations.

Publication ,  Journal Article
Krystal, AD; Weiner, RD
Published in: Convuls Ther
September 1995

Reliable monitoring of electroencephalographic (EEG) and electromyographic electroconvulsive therapy (ECT) seizure duration has become important as these assessments have become a routine part of the clinical practice of ECT. In this regard, accurate automated seizure duration determinations would be particularly valuable. As a result, the present study was performed to assess the reliability of available computer-automated determinations of seizure duration (Thymatron Model DGx ECT machine; Somatics, Inc.) and to explore the factors upon which such reliability as well as the determinations of experienced raters depend. We found that the experienced human raters had very high interrater reliability, significantly higher than either did with the automated Thymatron DGx ratings. In general, the reliability of all ratings declined in the context of artifact, poor postictal suppression, or an EEG seizure end point that was reached gradually. Reliability was also greater for continuation ECT as compared with the index course. The reliability of Thymatron DGx versus experienced human ratings was particularly sensitive to these factors, ranging from 0.68 when several of these factors were simultaneously present to 0.999 when all these factors were absent.

Duke Scholars

Published In

Convuls Ther

ISSN

0749-8055

Publication Date

September 1995

Volume

11

Issue

3

Start / End Page

158 / 169

Location

United States

Related Subject Headings

  • Signal Processing, Computer-Assisted
  • Reproducibility of Results
  • Observer Variation
  • Monitoring, Physiologic
  • Middle Aged
  • Male
  • Humans
  • Female
  • Evoked Potentials
  • Electromyography
 

Citation

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ICMJE
MLA
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Krystal, A. D., & Weiner, R. D. (1995). ECT seizure duration: reliability of manual and computer-automated determinations. Convuls Ther, 11(3), 158–169.
Krystal, A. D., and R. D. Weiner. “ECT seizure duration: reliability of manual and computer-automated determinations.Convuls Ther 11, no. 3 (September 1995): 158–69.
Krystal AD, Weiner RD. ECT seizure duration: reliability of manual and computer-automated determinations. Convuls Ther. 1995 Sep;11(3):158–69.
Krystal, A. D., and R. D. Weiner. “ECT seizure duration: reliability of manual and computer-automated determinations.Convuls Ther, vol. 11, no. 3, Sept. 1995, pp. 158–69.
Krystal AD, Weiner RD. ECT seizure duration: reliability of manual and computer-automated determinations. Convuls Ther. 1995 Sep;11(3):158–169.

Published In

Convuls Ther

ISSN

0749-8055

Publication Date

September 1995

Volume

11

Issue

3

Start / End Page

158 / 169

Location

United States

Related Subject Headings

  • Signal Processing, Computer-Assisted
  • Reproducibility of Results
  • Observer Variation
  • Monitoring, Physiologic
  • Middle Aged
  • Male
  • Humans
  • Female
  • Evoked Potentials
  • Electromyography