What question did this study set out to answer?

This study aims to determine the latency of three commonly used indices for monitoring anesthesia levels.

February 27, 2006AnesthesiologyOpen Access

Time Delay of Index Calculation

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This study aims to determine the latency of three commonly used indices for monitoring anesthesia levels.
Used artificially generated signals to produce index values ranging from awake to deep anesthesia.
Simulated loss and return of consciousness using full-step and stepwise approaches.
Measured time for indices to adapt to changes in input signals.
Time delays ranged from 14 to 155 seconds for all indices.
Delays varied between increasing and decreasing values, and were affected by the approach used.
Calculation time depended on the initial and target index values.

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Randomized trial measures time delays of hypnosis indices in anesthesia, indicating potential limitations for clinical use.

Pilge et al. (2006) studied this question.

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