MedTrace Logo

Influence of Ultrasonographic Hydro-dissection With Glucose 5% on Nerve Block Efficiency

NCT01058525 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2016-09-23

No results posted yet for this study

Summary

The real-time visualization of a needle and nerve during an ultrasound-guided nerve block can be challenging. These difficulties may partly explain the systemic complications of local anesthetics under ultrasound. Injection of small amounts of a solution around the anesthetized nerve (hydro-dissection) has been proposed to enhance contrast outlining its borders and also to improve the visualization of the needle tip. The glucose solution 5% solution is interesting because it allows, unlike saline, to maintain the motor response with neurostimulation. The hydro-dissection can be particularly useful when one suspect hypoechoic vessels near the nerve to be anesthetized. Thereby, the nerve well demarcated and separated from the vessels, injection of local anesthetic is performed in the circumferential diffusion space (like a small pocket) without redirecting needle.

The influence of this hydro-dissection on the nerve block efficiency is unknown. The nerve block quality can be improved because the entire anesthetic is injected in contact with the nerve, but it can also be reduced due to the dilution of the local anesthetic by the glucose solution.

In this randomized study, the investigators test the hypothesis that hydro-dissection does not alter the nerve block onset time.

Conditions

  • Nerve Block

Interventions

PROCEDURE

median nerve block

median nerve block performed using ultrasound guidance

PROCEDURE

median nerve block after hydro-dissection

median nerve block performed after hydro-dissection (glucose 5% solution), both using ultrasound guidance

Sponsors & Collaborators

  • Hopital Foch

    lead OTHER

Principal Investigators

  • Marc Fischler · Hôpital Foch

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2010-01-31
Primary Completion
2011-01-31
Completion
2011-01-31

Countries

  • France

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01058525 on ClinicalTrials.gov