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Related Concept Videos

Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
Mitral Stenosis I: Introduction01:22

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...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...

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Related Experiment Video

Updated: May 25, 2026

Isolation of Mouse Interstitial Valve Cells to Study the Calcification of the Aortic Valve In Vitro
05:47

Isolation of Mouse Interstitial Valve Cells to Study the Calcification of the Aortic Valve In Vitro

Published on: May 10, 2021

Understanding the molecular and cellular changes behind aortic valve stenosis.

Inês Falcão-Pires1, Cristina Gavina, Adelino F Leite-Moreira

  • 1Department of Physiology, Faculty of Medicine, Alameda Professor Hernani Monteiro, 4200-319 Porto, Portugal.

Current Pharmaceutical Biotechnology
|January 28, 2012
PubMed
Summary

Degenerative aortic valve disease (AVS) is an active biological process, not just aging. Understanding its molecular mechanisms offers new therapeutic targets to prevent or delay progression.

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Isolation of Human Primary Valve Cells for In vitro Disease Modeling
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Related Experiment Videos

Last Updated: May 25, 2026

Isolation of Mouse Interstitial Valve Cells to Study the Calcification of the Aortic Valve In Vitro
05:47

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Published on: May 10, 2021

Investigating Aortic Valve Calcification via Isolation and Culture of T Lymphocytes using Feeder Cells from Irradiated Buffy Coat
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Isolation of Human Primary Valve Cells for In vitro Disease Modeling
07:31

Isolation of Human Primary Valve Cells for In vitro Disease Modeling

Published on: April 16, 2021

Area of Science:

  • Cardiovascular Biology
  • Pathophysiology
  • Molecular Medicine

Background:

  • Degenerative aortic valve disease (AVS) is increasingly prevalent globally, linked to population aging and Western diets.
  • Historically viewed as degenerative, AVS is now recognized as an active biological process involving conserved cellular pathways.

Purpose of the Study:

  • To review the molecular and cellular mechanisms of degenerative aortic valve disease (AVS).
  • To explore the impact of AVS on myocardial changes.
  • To highlight potential therapeutic targets for AVS.

Main Methods:

  • Literature review focusing on molecular and cellular mechanisms of AVS.
  • Analysis of pathophysiological pathways including inflammation, angiogenesis, and matrix remodeling.
  • Examination of myocardial consequences of AVS.

Main Results:

  • AVS progression involves inflammation, angiogenesis, extracellular matrix remodeling, and osteogenesis, sharing similarities with atherosclerosis.
  • Potential therapeutic agents like statins and angiotensin II antagonists show controversial experimental results.
  • Valvular degeneration leads to significant myocardial changes, including left ventricular hypertrophy.

Conclusions:

  • AVS is an active, targetable biological process.
  • Further research into AVS mechanisms is crucial for developing preventative and therapeutic strategies.
  • Understanding AVS and its myocardial impact is essential for clinical management.