Ultrasound Guidance Versus Electrical Stimulation for Perineural Catheter Insertion
NCT ID: NCT00877266
Last Updated: 2009-04-07
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE4
180 participants
INTERVENTIONAL
2007-08-31
2009-02-28
Brief Summary
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Detailed Description
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Hypothesis: Compared with the use of electrical stimulation, the use of ultrasound guidance when inserting a perineural catheter is associated with a decreased time of placement.
Secondary Specific Aim: To determine if other possible benefits of perineural catheter placement associated with the use of ultrasound guidance versus electrical stimulation.
Hypothesis: Compared with the use of electrical stimulation, the use of ultrasound guidance when inserting a perineural catheter is associated with an increased surgical block success rate and catheter-placement success rate, as well as decreased patient discomfort and incidence of venous puncture.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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1. Ultrasound
Ultrasound is randomly chosen by use of a computer program. The time for catheter placement will begin with the ultrasound probe touches the patient. Patients will be asked their discomfort on a 0-10 scale (0=no discomfort and 10=worst discomfort imaginable) and will be called the next day by the research staff.
perineural mepivicaine catheter placed via ultrasound or electrical stimulation
Patients will be randomized to one of two groups: catheter placement via ultrasound or nerve stimulation. Placement of the catheter will be timed by research staff and discomfort level asked after placement of catheter. If the catheter is not placed by the randomized method within 15 minutes, the practitioner my switch to the alternate method. Patients will be called the morning after surgery by research staff to assess discomfort levels.
2. Electrical Stimulation
Nerve Stimulation (electrical stimulation) is randomly chosen using a computer program. Time of placement begins when the catheter-placement first touches the patient. After catheter placement patient is asked their discomfort on a 0-10 scale (0=no discomfort and 10=worst discomfort imaginable) and called the day after surgery by the research staff.
perineural mepivicaine catheter placed via ultrasound or electrical stimulation
Patients will be randomized to one of two groups: catheter placement via ultrasound or nerve stimulation. Placement of the catheter will be timed by research staff and discomfort level asked after placement of catheter. If the catheter is not placed by the randomized method within 15 minutes, the practitioner my switch to the alternate method. Patients will be called the morning after surgery by research staff to assess discomfort levels.
Interventions
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perineural mepivicaine catheter placed via ultrasound or electrical stimulation
Patients will be randomized to one of two groups: catheter placement via ultrasound or nerve stimulation. Placement of the catheter will be timed by research staff and discomfort level asked after placement of catheter. If the catheter is not placed by the randomized method within 15 minutes, the practitioner my switch to the alternate method. Patients will be called the morning after surgery by research staff to assess discomfort levels.
Eligibility Criteria
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Inclusion Criteria
* catheter in the interscalene, infraclavicular, popliteal, or femoral anatomic location
* age 18 years or older
Exclusion Criteria
* inability to communicate with the investigators and hospital staff
* incarceration
18 Years
ALL
No
Sponsors
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University of California, San Diego
OTHER
Responsible Party
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University of California, San Diego, Department of Anesthesiology
Principal Investigators
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Brian M Ilfeld, M.D., M.S.
Role: PRINCIPAL_INVESTIGATOR
University of California, San Diego
Locations
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UCSD Medical Center
San Diego, California, United States
Countries
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Other Identifiers
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US vs. NS Perineural Catheter
Identifier Type: -
Identifier Source: org_study_id
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