A new training set-up for trans-apical aortic valve replacement.

Area of Science:

• Biomedical Engineering
• Surgical Simulation
• Medical Device Development

Background:

• Trans-apical aortic valve replacement (AVR) is an advancing therapy with limited surgical training opportunities.
• Current training methods often rely on animal models or extensive fluoroscopy, posing ethical and practical challenges.

Purpose of the Study:

• To create a realistic, translucent artificial heart model for surgical training in trans-apical AVR.
• To reduce reliance on animal models and fluoroscopy in surgical education for this procedure.

Main Methods:

• A 3D heart model with aortic root was designed using CAD software (SolidWorks).
• The model was fabricated using rapid prototyping and coated with silicone for translucency.
• The final model was integrated into a human manikin for procedural simulation.

Main Results:

• The translucent heart model enabled visualization of the valved-stent deployment area without significant imaging support.
• The model facilitated repeated practice of all trans-apical AVR steps, including puncture, wiring, and catheterization.
• The artificial model proved effective for hands-on surgical training in a manikin setting.

Conclusions:

• A translucent, nature-like artificial heart model can effectively serve as a training tool for trans-apical AVR.
• This innovative model offers a viable alternative to animal use and reduces fluoroscopy requirements in surgical training.
• The developed model supports repeatable practice of critical surgical steps, enhancing trainee proficiency.