Visual and Electromyography Assessments in Response to Train-of-Four Stimulation of the Ulnar Nerve

Comparison of Visual and Electromyography Assessments in Response to Train-of-Four Stimulation of the Ulnar Nerve

Researchers are comparing the accuracy of measuring muscle relaxation during and after surgery with a device that provides numeric value versus visual observation to count of muscle twitches or absence of them by a medical provider monitoring your anesthesia during surgery.

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 NMBA agents administered intraoperatively.

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