A Study to Compare the ToFscan and TetraGraph During Recovery of Neuromuscular Function in the Post Anesthesia Care Unit


  • Study type

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • Site IRB
    • Jacksonville, Florida: 18-011298
    NCT ID: NCT03920670
    Sponsor Protocol Number: 18-011298

About this study

The purpose of this study is to assess the agreement and repeatability between TOF values obtained from ToFscan and TetraGraph.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

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.

Exclusion Criteria

  • Patients with unilateral 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.

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Jacksonville, Fla.

Mayo Clinic principal investigator

J. Ross Renew, M.D.

Open for enrollment

Contact information:

Karina Hex CCRP



More information


Publications are currently not available

Study Results Summary

Not yet available

Supplemental Study Information

Not yet available


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