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

NCT ID: NCT01221415

Last Updated: 2022-04-27

Study Results

Results pending

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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Recruitment Status

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2008-01-31

Study Completion Date

2011-10-31

Brief Summary

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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

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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.

Conditions

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Orthopedic

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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Interscalene Ultrasound

Subjects having orthopedic surgery requiring an interscalene peripheral nerve block and randomized to have the ultrasound used to locate the nerve.

No interventions assigned to this group

Interscalene Nerve Stimulator

Subjects having orthopedic surgery requiring an interscalene peripheral nerve block and randomized to have the nerve stimulator used to locate the nerve.

No interventions assigned to this group

Popliteal Ultrasound

Subjects having orthopedic surgery requiring an popliteal peripheral nerve block and randomized to have the ultrasound used to locate the nerve.

No interventions assigned to this group

Popliteal Nerve Stimulator

Subjects having orthopedic surgery requiring an popliteal peripheral nerve block and randomized to have the nerve stimulator used to locate the nerve.

No interventions assigned to this group

Femoral Ultrasound

Subjects having orthopedic surgery requiring an femoral peripheral nerve block and randomized to have the ultrasound used to locate the nerve.

No interventions assigned to this group

Femoral Nerve Stimulator

Subjects having orthopedic surgery requiring an femoral peripheral nerve block and randomized to have the nerve stimulator used to locate the nerve.

No interventions assigned to this group

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Ochsner Health System

OTHER

Sponsor Role lead

Responsible Party

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Leslie Thomas

Anesthesiologist

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Leslie Thomas, MD

Role: PRINCIPAL_INVESTIGATOR

Ochsner Health System

Locations

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Ochsner Clinic Foundation

New Orleans, Louisiana, United States

Site Status

Countries

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United States

References

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Domingo-Triado V, Selfa S, Martinez F, Sanchez-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):1270-4, tables of contents. doi: 10.1213/01.ane.0000221469.24319.49.

Reference Type RESULT
PMID: 17456685 (View on PubMed)

Marhofer P, Schrogendorfer 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. doi: 10.1016/s1098-7339(98)90086-4.

Reference Type RESULT
PMID: 9840855 (View on PubMed)

Other Identifiers

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2007.127.A

Identifier Type: OTHER

Identifier Source: secondary_id

2007.127.A

Identifier Type: -

Identifier Source: org_study_id

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