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Thumb vs Great Toe Recovery

Comparison of Flexor Hallicus Brevis and Adductor Pollicis as Sites for Neuromuscular Monitoring With Electromyography (Thumb vs Great Toe) After Sugammadex Administration

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04312256
Enrollment
81
Registered
2020-03-18
Start date
2020-08-18
Completion date
2021-01-19
Last updated
2024-06-04

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

Conditions

Residual Neuromuscular Blockade

Keywords

Neuromuscular Blockade, Tetragraph, AMG, EMG

Brief summary

Researches are comparing the accuracy of measuring muscle relaxation in the thumb versus the great toe.

Interventions

FDA approved neuromuscular transmission monitor capable of measuring the depth of neuromuscular block in anesthetized patients who received neuromuscular blocking agents. TetraGraph uses EMG to measure the muscle action potentials that are generated in response to electrical neurostimulation via skin (ECG) electrodes.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \> or = 18 years old * Patients willing to participate and provide an informed consent * Patients undergoing an elective surgical procedure that requires use of non-depolarizing NMBA agents administered intraoperatively. * Patients with planned administration of sugammadex as a neuromuscular blocking reversal agent.

Exclusion criteria

* Patients with disorders, such as stroke, carpal tunnel syndrome, broken wrist with nerve damage, Dupuytren contracture, or any similar wrist injury. * Patients with systemic neuromuscular diseases such as myasthenia gravis * Patients with significant organ dysfunction that can significantly affect pharmacokinetics of neuromuscular blocking and reversal agents, i.e., severe renal impairment or end-stage liver disease. * Patients having surgery that would involve prepping the arm or leg into the sterile field

Design outcomes

Primary

MeasureTime frameDescription
Onset Time of Muscle Relaxation for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) MusclesUp to 1 hour postoperativelyThe amount of time before initial muscle relaxation is recorded via neurostimulation with the Tetragraph device. As measure in seconds.
Recover Time for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) MusclesUp to 1 hour postoperativelyThe amount of time after muscle neurostimulation with the Tetragraph device completion to muscle full recovery. As measure in seconds.

Secondary

MeasureTime frameDescription
Onset Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) MusclesUp to 1 hour postoperativelyThe amount of time from reversal agent administered to initial muscle relaxation increase recorded via neurostimulation with the Tetragraph device. As measure in seconds.
Recover Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) MusclesUp to 1 hour postoperativelyThe amount of time after reversal agent administered to muscle full recovery recorded via neurostimulation with the Tetragraph device. As measure in seconds.

Countries

United States

Participant flow

Participants by arm

ArmCount
Dominant Hand and Great Toe
Subjects who underwent an elective surgical procedure had TetraGraph device lead placement on the dominant hand and great toe. TetraGraph: FDA approved neuromuscular transmission monitor capable of measuring the depth of neuromuscular block in anesthetized patients who received neuromuscular blocking agents. TetraGraph uses EMG to measure the muscle action potentials that are generated in response to electrical neurostimulation via skin (ECG) electrodes.
81
Total81

Baseline characteristics

CharacteristicDominant Hand and Great Toe
Age, Continuous55.2 years
STANDARD_DEVIATION 13.3
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
73 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
4 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
Race (NIH/OMB)
White
73 Participants
Region of Enrollment
United States
81 participants
Sex: Female, Male
Female
44 Participants
Sex: Female, Male
Male
37 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 81
other
Total, other adverse events
0 / 81
serious
Total, serious adverse events
0 / 81

Outcome results

Primary

Onset Time of Muscle Relaxation for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles

The amount of time before initial muscle relaxation is recorded via neurostimulation with the Tetragraph device. As measure in seconds.

Time frame: Up to 1 hour postoperatively

ArmMeasureValue (MEDIAN)
Flexor Hallucis Brevis (Great Toe)Onset Time of Muscle Relaxation for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180.0 seconds
Adductor Pollicis (Thumb)Onset Time of Muscle Relaxation for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180.0 seconds
Primary

Recover Time for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles

The amount of time after muscle neurostimulation with the Tetragraph device completion to muscle full recovery. As measure in seconds.

Time frame: Up to 1 hour postoperatively

Population: Data was not collected nor analyzed in18 subjects great toes. Data was not collected nor analyzed in 13 subjects thumbs.

ArmMeasureValue (MEDIAN)
Flexor Hallucis Brevis (Great Toe)Recover Time for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180 seconds
Adductor Pollicis (Thumb)Recover Time for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180 seconds
Secondary

Onset Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles

The amount of time from reversal agent administered to initial muscle relaxation increase recorded via neurostimulation with the Tetragraph device. As measure in seconds.

Time frame: Up to 1 hour postoperatively

ArmMeasureValue (MEDIAN)
Flexor Hallucis Brevis (Great Toe)Onset Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180.0 seconds
Adductor Pollicis (Thumb)Onset Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180.0 seconds
Secondary

Recover Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles

The amount of time after reversal agent administered to muscle full recovery recorded via neurostimulation with the Tetragraph device. As measure in seconds.

Time frame: Up to 1 hour postoperatively

Population: Data was not collected nor analyzed in 18 subjects great toes. Data was not collected nor analyzed in 13 subjects thumbs.

ArmMeasureValue (MEDIAN)
Flexor Hallucis Brevis (Great Toe)Recover Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180.0 seconds
Adductor Pollicis (Thumb)Recover Time of Reversal Agent Administered for Flexor Hallucis Brevis (Great Toe) and Adductor Pollicis (Thumb) Muscles180.0 seconds

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026