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Ultrasound-guided regional anesthesia: learning with an optimized cadaver model
Jens Kessler1, Bernhard Moriggl, Thomas Grau
1Department of Anesthesiology, University Hospital Heidelberg, Im Neuenheimer Feld 110, 69120, Heidelberg, Germany, jens.kessler@med.uni-heidelberg.de.
Surgical and Radiologic Anatomy : SRA
|August 28, 2013
Summary
This study developed a new ultrasound-guided regional anesthesia teaching model using specially prepared cadavers. The model effectively simulates nerve visualization and needle manipulation for improved trainee education.
Area of Science:
- Medical Education
- Anesthesiology
- Anatomical Simulation
Background:
- Limited studies exist on simulating ultrasound-guided regional anesthesia for educational purposes.
- Developing effective teaching models is crucial for regional anesthesia training.
Purpose of the Study:
- To evaluate the visibility of nerves and adjacent structures in prepared cadavers.
- To assess the feasibility of ultrasound-guided blocks in a cadaver model for teaching.
- To develop a novel teaching model for regional anesthesia.
Main Methods:
- Examined brachial, lumbar, and sacral plexus nerves in 12 embalmed cadavers.
- Performed ultrasound-guided needle advancement and simulated blocks with saline.
- Evaluated the model with questionnaires from 124 participants in two workshops.
Main Results:
- Nerves were successfully identified in all cadavers.
- Ultrasound appearance and saline spread mimicked live patient conditions.
- 79% of participants confirmed the model's value for teaching.
Conclusions:
- The cadaver model is a promising tool for practicing nerve visualization and needle skills.
- It allows simulation of interventional procedures and local anesthetic spread.
- This model can be a valuable adjunct to existing regional anesthesia teaching methods.
