Comparison of a Modern Digital Mechanomyograph to a Mechanomyograph Utilizing an Archival Grass Force Transducer
Authors' conclusion
The new mechanomyograph resulted in similar train-of-four ratio measurements compared to an archival mechanomyography system utilizing an FT-10 Grass force transducer.
Study context
- Population
- Patients undergoing surgery with rocuronium NMB767 paired TOF measurements
- Participants
- eight patients
- Comparison
- New mechanomyograph vs Archival system
- Outcome
- Equivalence of TOF ratios recorded on each device
- Follow-up
- Onset and recovery from rocuronium NMB
Methodological detailspaired measurement on opposite arms
- Paired measurement on opposite arms
Main finding
As reported in the abstract
TOF ratio agreement
Linear association of paired TOF ratios (R 2)
0.94
P < 0.001
Bland-Altman bias
3.8%
Bland-Altman limits of agreement
−13% and 21%
Further findings
| Outcome | New mechanomyograph | Archival system | P value |
|---|---|---|---|
| Precision and measurement sensitivityFor both precision and sensitivity | P < 0.001 | ||
| Precision | 5.3 mV | 15.5 mV | |
| Measurement sensitivity | 1.6 mV | 5.7 mV |
Calibration linearity (correlation coefficient)
- Linear correlation coefficient for both devices
- 1.00
Original publication
Comparison of a Modern Digital Mechanomyograph to a Mechanomyograph Utilizing an Archival Grass Force Transducer. Anesthesiology. Published 17 April 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →