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Interact CardioVasc Thorac Surg 2009;8:599-601. doi:10.1510/icvts.2009.204149
© 2009 European Association of Cardio-Thoracic Surgery
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Ludwig Karl von Segesser
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Work in progress report - Cardiac general

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

Philippe Abdel-Sayed*, Martins Kalejs and Ludwig Karl von Segesser

Department of Cardio-Vascular Surgery, Centre Hospitalier Universitaire Vaudois, CHUV, Rue du Bugnon 46, CH-1011 Lausanne, Switzerland

*Corresponding author. Tel.: +41-21-314 23 49; mobile: +41-76-488 60 05.

E-mail address: philippeabdelsayed{at}gmail.com (P. Abdel-Sayed).

Trans-apical aortic valve replacement (AVR) is a new and rapidly growing therapy. However, there are only few training opportunities. The objective of our work is to build an appropriate artificial model of the heart that can replace the use of animals for surgical training in trans-apical AVR procedures. To reduce the necessity for fluoroscopy, we pursued the goal of building a translucent model of the heart that has nature-like dimensions. A simplified 3D model of a human heart with its aortic root was created in silico using the SolidWorks Computer-Aided Design (CAD) program. This heart model was printed using a rapid prototyping system developed by the Fab@Home project and dip-coated two times with dispersion silicone. The translucency of the heart model allows the perception of the deployment area of the valved-stent without using heavy imaging support. The final model was then placed in a human manikin for surgical training on trans-apical AVR procedure. Trans-apical AVR with all the necessary steps (puncture, wiring, catheterization, ballooning etc.) can be realized repeatedly in this setting.

Key Words: Aortic valve replacement; Surgical training; Valved-stent; Translucent heart model; Stereolithography; Pulmonary valve replacement

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