Comparative Evaluation of Encephalon State Index in Monitoring the Depth of Anesthesia During the Stage of Surgical Anesthesia

Objective Evaluate the performance of Encephalon State Index(ESI) in depth of anesthesia monitoring in clinic surgery, compared with Bispectral Index (BIS).

Method ESI and BIS were collected of 60 patients in a single-center clinical trial to compare the differences in measuring the depth of anesthesia.

Result consistency analysis: the mean difference and standard deviation of ESI and BIS under awake and anesthesia status conditions are -0.18 ±5.42, -0.11 ±6.51, respectively. Correlation analysis: the correlation was 0.92 throughout the operative period. Prediction probability: The prediction probabilities of ESI and BIs are 0.97 and 0.97 respectively, which can well predict Anesthesia Status.

Conclusion ESI and BIS have good equivalence in surgery during clinic anesthesia, which meet the clinical anesthesia requirements.