Clinical trial Recruiting at 1 site Observational Ages 18 to 75

Comparing muscle response monitoring using median and ulnar nerves during surgery

Official title: Median Versus Ulnar Nerve Quantitative Electromyography Neuromuscular Blockade Monitoring Comparison

Run by Loma Linda University · NCT06553131 · Data updated 2026-11-12

This study is testing if monitoring muscle responses from the median nerve during surgery is just as good as using the ulnar nerve for people under general anesthesia.

More Neuromuscular Blockade trials

Quick facts

Study typeObservational
Ages18 Years to 75 Years
SexAll
Enrollment32 (estimated)
SponsorLoma Linda University
Academic / other
Locations1 site (Loma Linda, California)
StatusRecruiting
StartedDecember 26, 2024
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedJanuary 30, 2026
Trial IDNCT06553131 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 75 scheduled for elective surgeries requiring muscle relaxation under general anesthesia.

Probably not a fit

Patients with contraindications to rocuronium, neuromuscular diseases, or significant upper extremity issues may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to compare the muscle response to neuromuscular blockade at two different nerve sites in the arm: the ulnar nerve and the median nerve. Electromyography will be used to measure the depth of muscle relaxation during elective surgeries requiring general anesthesia. Participants will have electrodes placed on both arms to stimulate the ulnar nerve on one side and the median nerve on the other, allowing for a direct comparison of their responses. The study will help determine if the median nerve can provide comparable information to the ulnar nerve regarding neuromuscular transmission.

Why it matters

Potential benefit: If successful, this study could improve monitoring techniques for neuromuscular blockade, leading to better patient outcomes during surgery.

How similar studies have gone: While the ulnar nerve is the standard for monitoring, this approach using the median nerve is novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults 18 - 75 years of age who are able to provide consent
* Scheduled for elective surgery requiring muscle relaxation, in a supine position under general anesthesia, with an anticipated duration of at least 1.5 hours

Exclusion Criteria:

* Contraindication to rocuronium use
* Comorbidities that may prolong the duration of neuromuscular blockade or alter pharmacodynamics and/or pharmacokinetics, such as:
* Neuromuscular disease
* Expected or known difficult airway
* Rocuronium allergy
* BMI \< 18.5 or \> 40
* History of adhesive allergy
* Upper extremity weakness, limb deformity, or absence of all or part of an upper limb
* Patients undergoing surgical procedures requiring cardiopulmonary bypass

Where it's running

  • Loma Linda University Troesch Medical Center
    Loma Linda, California, United States
    Recruiting

Study contacts

  • Principal investigator: Michael Benggon, MD — Loma Linda University
  • Study coordinator: Melissa D McCabe, MD, MSCR
  • Email: mmccabe@llu.edu
  • Phone: 909 558 4475

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.