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Related Concept Videos

Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. 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...
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...

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Related Experiment Video

Updated: Jun 2, 2026

A Murine Model of Pressure Overload-Induced Right Ventricular Hypertrophy and Failure by Pulmonary Trunk Banding
04:49

A Murine Model of Pressure Overload-Induced Right Ventricular Hypertrophy and Failure by Pulmonary Trunk Banding

Published on: June 14, 2024

Right ventricular dysfunction and failure in chronic pressure overload.

Marc A Simon1, Michael R Pinsky

  • 1Cardiovascular Institute, University of Pittsburgh, Scaife Hall S-554, 200 Lothrop Street, Pittsburgh, PA 15213, USA.

Cardiology Research and Practice
|May 12, 2011
PubMed
Summary
This summary is machine-generated.

Right ventricular dysfunction, a key factor in pulmonary arterial hypertension (PAH) mortality, requires improved diagnosis and targeted treatments. Current research offers new insights into understanding and managing this condition.

More Related Videos

Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice
09:40

Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice

Published on: May 13, 2019

Related Experiment Videos

Last Updated: Jun 2, 2026

A Murine Model of Pressure Overload-Induced Right Ventricular Hypertrophy and Failure by Pulmonary Trunk Banding
04:49

A Murine Model of Pressure Overload-Induced Right Ventricular Hypertrophy and Failure by Pulmonary Trunk Banding

Published on: June 14, 2024

Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice
09:40

Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice

Published on: May 13, 2019

Area of Science:

  • Cardiology
  • Pulmonary Medicine
  • Pathophysiology

Background:

  • Right ventricular (RV) dysfunction is the primary cause of mortality in pulmonary arterial hypertension (PAH).
  • Current understanding of RV dysfunction pathophysiology in chronic pressure overload remains incomplete.
  • Early diagnosis and targeted therapies are crucial for improving patient outcomes.

Purpose of the Study:

  • To review the current understanding of RV dysfunction in PAH.
  • To present novel insights into the pathophysiology, diagnosis, and treatment of RV dysfunction.
  • To highlight the importance of addressing RV remodeling in PAH management.

Main Methods:

  • Literature review of current research on RV dysfunction in PAH.
  • Analysis of recent investigations into RV pathophysiology.
  • Synthesis of emerging diagnostic and therapeutic strategies.

Main Results:

  • RV dysfunction is a critical determinant of survival in PAH.
  • Advancements in understanding RV remodeling are emerging.
  • New diagnostic tools and treatment approaches are under investigation.

Conclusions:

  • Improved diagnostic methods and targeted treatments for RV dysfunction are essential for PAH patients.
  • Further research into RV pathophysiology can lead to better therapeutic interventions.
  • Minimizing or reversing RV remodeling holds promise for improving PAH outcomes.