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

Orthopedic Clinical Trial

Official title:

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

Clinical Trial Details — Status: Withdrawn

Administrative data

• NCT number: NCT01221415
• Other study ID #: 2007.127.A
• Secondary ID: 2007.127.A
• Status: Withdrawn
• Start date: January 2008
• Est. completion date: October 2011

Study information

• Verified date: April 2022
• Source: Ochsner Health System
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial 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.

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.

Recruitment information / eligibility

• Status: Withdrawn
• Enrollment: 0
• Est. completion date: October 2011
• Est. primary completion date: October 2011
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

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

Related Conditions & MeSH terms

• Orthopedic

Locations

Country	Name	City	State
United States	Ochsner Clinic Foundation	New Orleans	Louisiana

Sponsors (1)

Lead Sponsor	Collaborator
Ochsner Health System

Country where clinical trial is conducted

United States, 

References & Publications (2)

Domingo-Triadó V, Selfa S, Martínez F, Sánchez-Contreras D, Reche M, Tecles J, Crespo MT, Palanca JM, Moro B. Ultrasound guidance for lateral midfemoral sciatic nerve block: a prospective, comparative, randomized study. Anesth Analg. 2007 May;104(5):1270- — View Citation

Marhofer P, Schrögendorfer K, Wallner T, Koinig H, Mayer N, Kapral S. Ultrasonographic guidance reduces the amount of local anesthetic for 3-in-1 blocks. Reg Anesth Pain Med. 1998 Nov-Dec;23(6):584-8. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	time from injection of local anesthetic to adequate surgical anesthesia		within the first 45 minutes after injection of local anesthestic
Secondary	effectiveness of block		within 1 hour of injection
Secondary	time taken to locate the target nerve and inject local anesthetic		within 45 minutes prior to injection
Secondary	incidence of vascular puncture		within 30 minutes of injection
Secondary	incidence of adverse events		within 2 weeks of the day of surgery
Secondary	patient satisfaction		within 2 weeks of the date of surgery