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Heart Valves

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...

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Related Experiment Video

Updated: May 22, 2025

Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

Published on: October 17, 2013

Polymeric Heart Valves: Do They Represent a Reliable Alternative to Current Prosthetic Devices?

Martina Todesco¹, Gianluca Lezziero¹, Gino Gerosa²

¹Department of Industrial Engineering, University of Padua, 35131 Padua, Italy.

|March 13, 2025

Summary

Polymeric heart valves (PHVs) offer a promising solution for heart valve diseases, combining mechanical durability with better biocompatibility. Ongoing research focuses on improving materials and designs for more effective and less invasive valve replacement therapies.

Keywords:

heart valve prosthesis in vitro tests in vivo trials polymeric heart valves polymers valve replacement

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Last Updated: May 22, 2025

Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

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Published on: October 17, 2013

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Transplantation of Pulmonary Valve Using a Mouse Model of Heterotopic Heart Transplantation

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Published on: July 23, 2014

Area of Science:

Biomaterials Science
Cardiovascular Engineering
Medical Device Development

Background:

Heart valve diseases are increasingly prevalent, driving demand for advanced prosthetic solutions.
Current prosthetic heart valves face limitations in fully replicating native valve function and long-term performance.
Polymeric heart valves (PHVs) emerge as a promising alternative, potentially merging mechanical valve robustness with bioprosthetic biocompatibility.

Purpose of the Study:

To provide a comprehensive review of the evolution of polymeric heart valves (PHVs).
To examine advancements in materials, design, and fabrication techniques for PHVs.
To discuss the challenges and future directions in PHV development, particularly for transcatheter applications.

Main Methods:

Literature review of polymeric heart valve research.
Analysis of material science innovations (polymers, nanocomposites).
Evaluation of design strategies and fabrication methods for PHVs.
Inclusion of in vitro and in vivo study findings.

Main Results:

Significant progress in developing novel biomaterials and innovative designs for PHVs.
Identification of key challenges, including limited biocompatibility and in vivo failure risks.
PHVs show particular relevance for minimally invasive transcatheter applications.

Conclusions:

Polymeric heart valves represent a rapidly advancing field with the potential to significantly improve heart valve disease treatment.
Further research is needed to overcome current limitations and fully realize the potential of PHVs.
PHVs offer a promising avenue for more durable and less invasive heart valve replacement.