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Development of cadaver perfusion models for surgical training: an experimental study
Alexandre Bellier1,2, J Fournier3, Q Faure3
1Department of Medical Evaluation, Grenoble Alpes University Hospital, Boulevard de la Chantourne, 38700, La Tronche, France. abellier@chu-grenoble.fr.
Surgical and Radiologic Anatomy : SRA
|April 17, 2019
Summary
Improving cadaver perfusion for surgical simulation is key. The best results were achieved using non-embalmed bodies, low-pressure washing, and a 4-g/L gelatin-based fluid for circulation.
Area of Science:
- Anatomical studies
- Surgical simulation techniques
- Medical education
Background:
- Cadaver perfusion methods are inconsistent and suboptimal for surgical training.
- Existing circulation models require enhancement for realistic surgical simulation.
Purpose of the Study:
- To optimize and improve current cadaver circulation models for surgical simulation.
- To identify the most effective perfusion technique for anatomical realism.
Main Methods:
- A three-step experimental approach was employed.
- Variables tested included circuit type, heater use, injection fluid, and body conditioning (embalmed vs. fresh).
- Realism was scored based on return flow volume, peripheral venous return, and abdominal artery perfusion.
Main Results:
- A heater appeared to enhance perfusion; arteriovenous bypass was less effective.
- A high correlation (0.84) was found between realism score and injection fluid.
- The optimal technique involved a non-embalmed body, low-pressure washing, and 4 g/L gelatin-based fluid, achieving a score of 4/6.
Conclusions:
- Non-embalmed cadavers with low-pressure washing and a specific gelatin concentration offer superior perfusion.
- This optimized technique enhances the realism of cadaver models for surgical simulation.
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