Comparative performance of stimpod electromyography with mechanomyography for quantitative neuromuscular blockade monitoring
Authors' conclusion
The electromyograph produced results that were comparable to the mechanomyograph.
Study context
- Population
- Patients under anesthesia receiving neuromuscular blocking drugs at the care team's discretion1,088 data pairs analysed
- Participants
- 23 participants
- Comparison
- Stimpod electromyograph vs Mechanomyography
- Outcome
- Agreement of Stimpod electromyograph with mechanomyography (TOF ratio, TOF count, post tetanic count)
Methodological detailssame hand, mechanomyography as reference standard, Stimulation current 60 mA, duration 200 microsec, TOF pairs every 0.5-2 min; post tetanic count pairs every 2.5 min when TOF count zero
- Same hand
- Mechanomyography as reference standard
- Stimulation current 60 mA, duration 200 microsec
- TOF pairs every 0.5-2 min; post tetanic count pairs every 2.5 min when TOF count zero
Main finding
As reported in the abstract
Agreement of Stimpod EMG with mechanomyography
TOF ratio, Bland-Altman bias (415 pairs)
0.028
TOF ratio, limits of agreement
−0.18 and 0.24
TOF count, Cohen's quadratically weighted kappa (273 pairs), moderate agreement
0.44
Post tetanic count, Cohen's quadratically weighted kappa (338 pairs), substantial agreement
0.80
Original publication
Comparative performance of stimpod electromyography with mechanomyography for quantitative neuromuscular blockade monitoring. J Clin Monit Comput. Published 13 October 2023. doi:10.
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