Related Experiment Video
Updated: Mar 14, 2026
09:40
Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice
Published on: May 13, 2019
11.2K
The ROVT Elan Valved Biplex Conduits for the Reconstruction of the Right Ventricular Outflow Tract
Robert Guidoin1, Yijun Fu2, Bin Li3
1Departments of Surgery and Radiology, Faculty of Medicine, Laval University, Axe Medecine Regeneratrice, Centre de Recherche, CHU, Quebec, (QC) Canada.
Journal of Long-Term Effects of Medical Implants
|September 22, 2016
Summary
Reconstructing the right ventricular outflow tract (RVOT) is challenging due to diverse patient anatomy and device issues. Early failure of porcine conduits, linked to valve aging and thrombus, highlights the need for improved RVOT device design.
Area of Science:
- Cardiovascular Surgery
- Biomaterials Science
- Medical Device Engineering
Background:
- Reconstruction of the right ventricular outflow tract (RVOT) presents significant challenges.
- Patient anatomical diversity can lead to device complications and early failures.
- Increasing numbers of pediatric patients require RVOT reconstruction due to improved surgical outcomes.
Purpose of the Study:
- To investigate the failure mechanisms of an explanted porcine-valve conduit.
- To analyze material and design challenges in current RVOT devices.
- To identify areas for improvement in RVOT device technology.
Main Methods:
- In-depth investigation of an explanted porcine-valve conduit from a patient with an adverse event.
- Analysis of a control porcine-valve conduit for reference.
- Evaluation of valve aging and thrombus formation.
Main Results:
- The explanted porcine valve showed signs of rapid aging and significant thrombus formation.
- Material limitations and design features of the conduit were identified as contributing factors to failure.
- The study highlights the inadequacy of current devices for long-term RVOT reconstruction.
Conclusions:
- Porcine valves are susceptible to rapid degradation and thrombus formation in the RVOT.
- Current RVOT conduit designs and materials require substantial improvement.
- Further research is essential to develop more durable and effective RVOT reconstruction devices.
