Precision of electromyography according to the calibration approach of neuromuscular monitoring: a randomised prospective agreement study
Authors' conclusion
Electromyography was most precise when calibration was performed under deep anaesthesia (control).
Study context
- Population
- Patients undergoing anaesthesia with quantitative neuromuscular monitoring by electromyography
- Participants
- 60 patients
- Comparison
- Before induction vs During induction vs Uncalibrated vs Control
- Primary endpoint
- Repeatability coefficient (fluctuation of the following train-of-four (TOF) reading; precision)
- Follow-up
- TOF ratios ≥ 0.8
Methodological detailsmulticentre
- Multicentre
Primary result
As reported in the abstract
Repeatability coefficient at TOF ratios ≥ 0.8
Uncalibrated
0.124
± 0.130
During induction
0.087
± 0.104
Before induction
0.075
± 0.036
- Control (contralateral arm) in the uncalibrated, during-induction and before-induction patients, respectively
- 0.072 ± 0.027, 0.061 ± 0.021, and 0.083 ± 0.063
Secondary outcomes
Recall of pain at anaesthesia induction
- Did not differ between investigational groups
Original publication
Precision of electromyography according to the calibration approach of neuromuscular monitoring: a randomised prospective agreement study. J Clin Monit Comput. Published 28 May 2025. doi:10.
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