Shoulder Arthroscopy, Ultrasound-guided Interscalene Nerve Block
Conditions
Keywords
shoulder arthroscopy, ultrasound guided nerve block, interscalene nerve block
Brief summary
This is a prospective randomized clinical trial to determine where is the optimal location for local anesthetic injection for ultrasound guided interscalene nerve blocks. The investigators are investigating if local anesthetic deposited between the nerve roots is more effective than local anesthetic deposited in the interscalene groove.
Interventions
PROCEDUREInterscalene block for shoulder arthroscopy
Sponsors
University of California, San Francisco
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
ASA I-II patients who are 18 years and older and who are scheduled for shoulder arthroscopy are eligible for enrollment provided they do not have any of the following
Exclusion criteria
.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Onset of motor blockade | 1 hour from time of injection | Time to loss of shoulder abduction. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Opioid consumption | 24 hours | Opioid consumption - perioperative and post discharge |
| Quality of Nerve block | 24 hours | onset of sensory block |
| Incidence of post-operative nausea/vomiting | 24 hours | — |
| Patient Satisfaction Score | 24 hours | — |
| Number of needle passes | 1 hour | — |
| Number of paresthesias | 1 hour | number of paresthesia experience during nerve block |
| Residual paresthesia | 24 hour | incidence of residual paresthesias |
| Duration of nerve block | 24 hours | Duration of analgesia from nerve block |
Countries
United States
Outcome results
None listed