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More info
You can access this
clinical trial
if you have
Nerve Block
and you are
over 18
years old
The primary goal of this phase is to monitor the long-term effects.
The treatment is already on the market.
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The purpose

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.

Provided treatments

  • Procedure: median nerve block
  • Procedure: median nerve block after hydro-dissection

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01058525. The sponsor of the trial is Hopital Foch and it is looking for 100 volunteers for the current phase.
Official trial title:
Influence of Ultrasonographic Hydro-dissection With Glucose 5% Solution on Median Nerve Block Efficiency: a Prospective and Randomized Study