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Updated: Jun 26, 2026
03:14
Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia
Published on: January 31, 2025
[Ultrasound and regional anaesthesia]
L Delaunay1, F Plantet, D Jochum
1Service d'anesthésie-réanimation, clinique générale d'Annecy, 4 chemin de la Tour-la-Reine, Annecy, France. delalaur@wanadoo.fr
Annales Francaises D'Anesthesie Et De Reanimation
|February 3, 2009
Summary
Ultrasound guidance revolutionizes regional anesthesia by enabling visualization, reducing anesthetic volume, and confirming placement. While studies are underpowered, direct visualization significantly enhances procedural safety.
Area of Science:
- Anesthesiology
- Medical Imaging
Background:
- Regional anesthesia has evolved significantly with technological advancements.
- Ultrasound guidance offers enhanced visualization of anatomical structures and needle placement during regional anesthesia procedures.
Purpose of the Study:
- To demystify ultrasound guidance in regional anesthesia.
- To provide fundamental knowledge and practical solutions for bedside ultrasound use.
Main Methods:
- Review of available literature on ultrasound in regional anesthesia.
- Explanation of ultrasound machine adjustments, artifacts, and imaging techniques (short/long axis, in-plane/out-of-plane, hydrolocalization).
- Discussion of combining ultrasound with nerve stimulation for enhanced safety.
Main Results:
- Ultrasound allows visualization of anatomical variations and intraneural injections, reduces local anesthetic volume, and confirms correct placement.
- No statistically significant differences in success/safety rates were found due to underpowered studies.
- Direct visualization of the needle tip is a key safety endpoint.
Conclusions:
- Ultrasound guidance represents a major safety advancement in regional anesthesia by enabling direct visualization.
- Familiarity with the equipment and a learning curve are necessary, but training on manikins/phantoms is effective.
- Combining ultrasound with nerve stimulation is recommended, especially for beginners, to optimize safety and clinical outcomes.
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