Electromyographic Calibration Guided by Depth of Anesthesia — CELESTE  

Neuromuscular Blockade Clinical Trial

Official title: Does Calibration of Electromyography Guided by State Entropy Improve Measurement Precision

Status Completed

Clinical Trial Summary

The goal of the CELESTE study is to evaluate whether calibration of EMG is needed for reliable interpretation of neuromuscular function and if so, to identify the minimal necessary depth of anesthesia.

Clinical Trial Description

Neuromuscular monitoring is used to document neuromuscular function intra-operatively. Failure to restore neuromuscular function prior to extubation results in residual neuromuscular blockade which is associated with increased postoperative morbidity and mortality. It is essential to document baseline neuromuscular function before administration of the neuromuscular blocking agent. However, during anesthesia induction, neuromuscular monitoring is rarely calibrated due to its time-consuming nature coinciding with the patients' loss of consciousness.

The CELESTE trial is a randomized, prospective, observational proof-of-concept study. We plan to enroll sixty adult participants scheduled for elective non-cardiac surgery requiring general anesthesia with moderate neuromuscular blockade. Participants will be randomized into three electromyography (EMG) calibration groups: based on state entropy ("depth of anesthesia"), group 1 will receive "analgesic calibration", group 2 "sedated calibration", and group 3 "no calibration". Participants will be randomly allocated to receive calibration at a certain depth of anesthesia. All participants will receive a standard EMG performed on the contralateral arm. Standard EMG will be calibrated at state entropy of 50. ;

Related Conditions & MeSH terms

• Neuromuscular Blockade

• NCT number: NCT04911088
• Study type: Observational
• Source: University Hospital Ulm
• Status: Completed
• Start date: January 16, 2022
• Completion date: May 31, 2023