Ultrasound Guidance Versus Electrical Stimulation for Perineural Catheter Insertion
Postoperative Pain
About this trial
This is an interventional treatment trial for Postoperative Pain focused on measuring catheter, ultrasound guidance, nerve stimulation, electrical stimulation, nerve block, UCSD, timed placement, surgery, Catheter Placement Time
Eligibility Criteria
Inclusion Criteria:
- undergoing surgery with a planned perineural catheter for postoperative analgesia
- catheter in the interscalene, infraclavicular, popliteal, or femoral anatomic location
- age 18 years or older
Exclusion Criteria:
- pregnancy
- inability to communicate with the investigators and hospital staff
- incarceration
Sites / Locations
- UCSD Medical Center
Arms of the Study
Arm 1
Arm 2
Active Comparator
Active Comparator
1. Ultrasound
2. Electrical Stimulation
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.
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.