Cystoscopy
Conditions
Brief summary
The purpose of this research is to compare the performance of acceleromyograph and electromyograph-based quantitative neuromuscular monitors when the arms are tucked for surgical positioning.
Interventions
OTHERObservation of EMG and AMG readings
Simultaneous readings from electromyograph and acceleromyograph
Sponsors
Mayo Clinic
Study design
Observational model
CASE_ONLY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients willing to participate and provide an informed consent. * Patients undergoing elective surgical procedures that require general anesthesia without use of NMBA agents administered intraoperatively, and tucked arms. * Anticipated surgery duration \< 120 minutes.
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 having surgery that would involve prepping the arm into the sterile field.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Accuracy and precision | 120 minutes | Accuracy and precision of train-of-four ratios measured simultaneously by two quantitative neuromuscular monitors every minute among 40 patients undergoing surgery of at least 30 min duration (roughly 1200 measurements) in which the arms are tucked and in the absence of neuromuscular blocking agents. In the absence of neuromusuclar blocking agents, the expected train-of-four ratio is 1.0. Accuracy of each monitor will be assessed by how close measuremetns are to 1.0 while precision will be assessed by the variability of the measured responses in all patients undergoing procedure. |
Countries
United States
Contacts
PRINCIPAL_INVESTIGATORJ. Ross Renew, M.D.
Mayo Clinic
Outcome results
None listed