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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...

Mitral Stenosis I: Introduction

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...

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Related Experiment Video

Updated: Dec 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

New Insights into Valve Hemodynamics.

Gil Marom¹, Shmuel Einav²

¹School of Mechanical Engineering, Tel Aviv University, Tel Aviv Israel.

Rambam Maimonides Medical Journal

|May 7, 2020

Summary

This summary is machine-generated.

Heart valve diseases affect millions, altering blood flow. This review covers current and future clinical and engineering treatments for heart valves, focusing on restoring normal hemodynamics.

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Last Updated: Dec 22, 2025

Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

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Published on: October 17, 2013

Author Spotlight: Advancing Cardiac Procedure Testing Prior to Embarking on Large Animal Studies

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Particle Image Velocimetry Investigation of Hemodynamics via Aortic Phantom

Particle Image Velocimetry Investigation of Hemodynamics via Aortic Phantom

Published on: February 25, 2022

Area of Science:

Cardiovascular Medicine
Biomedical Engineering
Medical Devices

Background:

Heart valve diseases are prevalent, impacting millions annually in the US.
These conditions disrupt normal cardiac hemodynamic performance, necessitating interventions.
Restoring proper blood flow is the primary goal of all heart valve disease treatments.

Purpose of the Study:

To review state-of-the-art clinical and engineering advancements in heart valve treatments.
To focus on the hemodynamic impact and restoration of normal flow in valvular disease.
To explore current and upcoming innovations for aortic, mitral, pulmonic, and tricuspid valve disorders.

Main Methods:

Comprehensive review of engineering studies and clinical literature.
Analysis of device-based treatments for aortic valve disease.
Examination of advancements in mitral, pulmonic, and tricuspid valve interventions.

Main Results:

Current treatments aim to normalize hemodynamics in patients with heart valve disorders.
Significant engineering and clinical progress has been made in aortic valve treatment devices.
Latest advancements are emerging for mitral valve and right-sided heart valve (pulmonic and tricuspid) treatments.

Conclusions:

Upcoming innovations hold the potential to revolutionize heart valve disorder treatment.
Enhancements in procedural techniques and imaging modalities are expected.
These advancements could significantly improve the quality of life for patients currently untreatable.