A Comparison of Ultrasound and Nerve Stimulator Techniques for Nerve Localization in Regional Anesthesia

Withdrawn

• Conditions: Orthopedic

• Registration Number: NCT01221415
• Lead Sponsor: Ochsner Health System

Brief Summary

The primary objective of this study is to compare ultrasound versus nerve stimulator techniques for nerve localization when performing peripheral nerve blocks. Specifically the investigators will be performing Popliteal, Femoral, and Interscalene nerve blocks. The investigators will be looking for differences in 1) time taken to locate the target nerve and inject local anesthetic 2) time from injection of local anesthetic to adequate surgical anesthesia 3) effectiveness of block 4) incidence of vascular puncture 5) incidence of adverse events 6) patient satisfaction.

Detailed Description

After obtaining informed consent, subjects will be randomized to either the ultrasound or nerve stimulator groups as the method for nerve localization prior to peripheral block placement.

Study Timeline

• Study Start: 2008-01
• Study First Submitted: 2010-07-21
• Study First Submitted QC: 2010-10-14
• Study First Posted: 2010-10-15
• Primary Completion: 2011-10
• Study Completion: 2011-10
• Status Verified: 2022-04
• Last Update Submitted: 2022-04-19
• Last Update Posted: 2022-04-27

Recruitment & Eligibility

• Status: WITHDRAWN
• Sex: All
• Target Recruitment: Not specified

Inclusion Criteria

• American Society of Anesthesiologists (ASA) Physical status I-III
• Arthroscopic knee surgery or Lower leg/foot surgery as well as shoulder arthroscopy
• Outpatient status
• Patient preference for a regional anesthetic
• Subjects should be capable of giving informed consent

Exclusion Criteria

• Allergy to:

  • Local anesthetics
  • Hydromorphone
  • Propofol
  • Midazolam

• Patient refusal

• Infection at the injection site

• Peripheral Neuropathy

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
time from injection of local anesthetic to adequate surgical anesthesia	within the first 45 minutes after injection of local anesthestic

Secondary Outcome Measures

Name	Time	Method
time taken to locate the target nerve and inject local anesthetic	within 45 minutes prior to injection
effectiveness of block	within 1 hour of injection
incidence of vascular puncture	within 30 minutes of injection
incidence of adverse events	within 2 weeks of the day of surgery
patient satisfaction	within 2 weeks of the date of surgery

Trial Locations

Locations (1)

Ochsner Clinic Foundation; 🇺🇸 New Orleans, Louisiana, United States