Effects of Local Anesthetic or Saline Solution on Peripheral Nerve Stimulation – a Randomised Study

Overview

In this study we want to examine the effect of a small amount of local anesthetic or saline solution on nerve conduction using a peripheral nerve stimulator.

Full Title of Study: “Effects of Local Anesthetic or Saline Solution on Peripheral Nerve Stimulation – a Randomised, Double-Blind, Multicenter Study About the Stimulability of Anesthetized Nerves”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: Double

Detailed Description

Using electrical nerve stimulation in performing peripheral nerve helps to control the needle position in relation to the nerve and therefore may increase the likelihood of a successful nerve block. Defining the minimal stimulating current accepted also may help to avoid direct contact between nerve and needle or accidental endoneural injection and subsequent nerve lesion. In recent years there have been many reports where several nerves, parts thereof or plexuses have been anesthetised using a multiple injection approach. That is, nerves in close proximity of each other have been subsequently blocked after using a nerve stimulator to locate them. It is not clear though, whether a nerve may already be partially anesthetised in this situation and whether that would impair the correct use of a peripheral nerve stimulator. The aim of this study is to examine the excitability of a peripheral nerve after injecting a small amount of local anesthetic agent or saline solution into the proximity of the nerve.

Interventions

  • Procedure: peripheral nerve stimulation (procedure)

Participating in This Clinical Trial

Inclusion Criteria

ASA 1-2 Exclusion Criteria:

peripheral neuropathy, ASA >2

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: 70 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Heidelberg University
  • Collaborator
    • Rechbergklinik Bretten
  • Overall Official(s)
    • Heinz Kaiser, MD, Study Chair, Rechbergklinik Bretten

Citations Reporting on Results

Neuburger M, Gultlinger O, Ass B, Buttner J, Kaiser H. [Influence of blockades with local anesthetics on the stimulation ability of a nerve by peripheral nerve stimulation. Results of a randomized study]. Anaesthesist. 2005 Jun;54(6):575-7. doi: 10.1007/s00101-005-0824-3. German.

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