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Monitoring methods: SNAP.

P Bischoff1, G Schmidt

  • 1Department of Anaesthesiology, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany. bischoff@uke.uni-hamburg.de

Best Practice & Research. Clinical Anaesthesiology
|April 26, 2006
PubMed
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The SNAP electroencephalogram (EEG) monitor analyzes raw EEG signals using a unique algorithm. Further research is needed to confirm its superiority for monitoring sedation depth and clarify electromyographic influences.

Area of Science:

  • Neuroscience
  • Medical Devices

Background:

  • The SNAP electroencephalogram (EEG) monitor is an innovative tool utilizing Personal Digital Assistant technology.
  • It analyzes both high- (80-420 Hz) and low- (0-20 Hz) frequency EEG signal components.

Purpose of the Study:

  • To evaluate the SNAP electroencephalogram (EEG) monitor's utility and performance.
  • To assess its effectiveness in providing functional data points for patient management.

Main Methods:

  • The SNAP monitor samples raw EEG signals.
  • It employs a proprietary algorithm to calculate the SNAP index, ranging from 0 to 100.

Main Results:

  • The SNAP index provides functional data points for patient management.
  • Limited literature exists on the SNAP device since its introduction in 2002.

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Conclusions:

  • There is no current evidence demonstrating SNAP's superiority over other EEG devices for assessing 'depth of sedation'.
  • The impact of high-frequency electromyographic activity on SNAP index requires further investigation.