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The Precision and Arm-to-Arm Variation of Mechanomyography and Acceleromyography for Monitoring of Neuromuscular Block

The Precision and Arm-to-Arm Variation og Mechanomyography and Acceleromyography for Monitoring the Neuromuscular Block During Anesthesia, A Randomized Controlled Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00472121
Enrollment
Unknown
Registered
2007-05-11
Start date
2007-05-31
Completion date
2007-10-31
Last updated
2008-04-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neuromuscular Blockade

Brief summary

The purpose of the study is the examine the precision of acceleromyography and mechanomyography during recovery from a neuromuscular blocking agent and to examine whether there is any difference in monitoring block at the dominant or non-dominant arm. Our hypothesis is that there is no significant difference in neither the precision nor the level of block in the contralateral arms.

Interventions

DEVICETOF-Watch SX (neuromuscular monitor)

The variation between arms (dominant or non-dominant) when monitored with the same method on both arms

Sponsors

Rigshospitalet, Denmark
Lead SponsorOTHER

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years

Inclusion criteria

* ASA I-III * General anesthesia \>1 hour * Surgery in supine position w. possibility of monitoring the neuromuscular block at both arms (n. ulnaris stimulation/thumb response) * Written informed content

Exclusion criteria

* Neuromuscular disorders, hepatic and renal dysfunction * Medication expected to interfere with the neuromuscular blocking agent * Allergy to any medication used during anaesthesia * Body weight less or exceeding 20% of ideal body weight * Pregnancy or breastfeeding

Design outcomes

Primary

MeasureTime frame
Precision at the contralateral arms using the average residual coefficient of variation over subsequent linear regressions (detrending) over time

Secondary

MeasureTime frame
T1 height at reappearance of T1-T4
Time to T1=25%
Bias and limits of agreement between control TOF, reappearance of T1, T2, T3, T4
Time to TOF 0.9 and 1.0 with and without normalization
Time to stable T1 and stable TOF
Interval 25-75%

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026