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Physiological Ventricular Simulator for Valve Surgery Training.

Kasparas Zilinskas1, Jennie H Kwon1, Katherine Bishara1

  • 1Department of Surgery, Medical University of South Carolina, Clinical Sciences Building Suite 420, 96 Jonathan Lucas St., Charleston, SC 29425, USA.

Bioengineering (Basel, Switzerland)
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Summary

A novel dynamic ventricular simulator allows cardiac surgery trainees to practice heart valve procedures under realistic physiologic conditions. This simulation tool evaluates surgical success using hemodynamic and echocardiographic outcomes.

Keywords:
3D printingaortic procedurecardiothoracicsimulationsurgeryvalve replacement

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Area of Science:

  • Biomedical Engineering
  • Surgical Education
  • Cardiovascular Research

Background:

  • Surgical simulation is crucial for cardiac surgeon training.
  • Existing simulators lack dynamic physiologic conditions for heart valve procedures.
  • There is a need for advanced simulation tools in cardiac surgery education.

Purpose of the Study:

  • To describe a novel dynamic ventricular simulator for cardiac surgery training.
  • To evaluate the simulator's ability to test simulated heart valve procedures under physiologic conditions.
  • To assess the functional efficacy of aortic procedures using the simulator.

Main Methods:

  • Developed a dynamic ventricular simulator with a 3D printed valve chamber and pulsatile pump.
  • Utilized porcine aortic roots for hemodynamic perfusion.
  • Validated the simulator by testing aortic valve leaflet repairs and replacements performed by trainees.
  • Assessed procedural success through visualization, hemodynamic measurements, and echocardiography.

Main Results:

  • The simulator provided near-physiologic hemodynamic perfusion for porcine aortic roots.
  • Trainee procedures (valve repairs and replacements) were successfully simulated and evaluated.
  • Clinically relevant echocardiographic and hemodynamic data were obtained.
  • The simulator demonstrated its capability to test functional efficacy under dynamic conditions.

Conclusions:

  • This novel dynamic ventricular simulator effectively tests the functional efficacy of aortic procedures under physiologic conditions.
  • The simulator offers a valuable tool for cardiac surgery education and training.
  • Potential applications extend to other cardiovascular interventions beyond valve surgery.