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Related Concept Videos

Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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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...
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Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

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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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Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

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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...
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Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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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...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Longitudinal Research02:20

Longitudinal Research

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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Related Experiment Video

Updated: Sep 19, 2025

Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
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Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery

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Longitudinal Decrease in Left Ventricular Size with Age: Impact on Mortality and Cardiovascular Hospitalization.

Israel Gotsman1, Ayelet Shauer2, Donna R Zwas2

  • 1Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel, igotsman@hadassah.org.il.

Cardiology
|June 1, 2025
PubMed
Summary
This summary is machine-generated.

Progressive reduction in left ventricular (LV) size, even in normal hearts, is linked to increased mortality risk. Monitoring LV size changes is crucial for predicting cardiac outcomes.

Keywords:
AgingEchocardiographyLeft ventricular sizePrognosis

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Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism
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Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism
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Area of Science:

  • Cardiology
  • Echocardiography
  • Cardiac Remodeling

Background:

  • Small left ventricular (LV) chamber size can indicate adverse cardiac remodeling and impact prognosis.
  • The prognostic implications of LV size reduction in individuals with normal baseline LV size are not well understood.

Purpose of the Study:

  • To investigate the clinical characteristics and outcomes associated with longitudinal decreases in LV size.
  • To clarify the prognostic significance of declining LV size in hearts with normal baseline dimensions.

Main Methods:

  • Analysis of echocardiographic data from 6,232 adults with normal baseline LV end-diastolic diameter (LVEDD).
  • Participants were categorized based on LVEDD change (no change, decreased ≥5 mm, increased ≥5 mm) over a mean 4.8-year interval.

Main Results:

  • A 5 mm or greater decrease in LVEDD occurred in 24% of participants and was independently associated with increased mortality (HR 1.19).
  • Annual LVEDD decrease (>1 mm/year) significantly predicted mortality and death/cardiovascular hospitalization.
  • Both increasing and decreasing LV end-diastolic volumes correlated with adverse outcomes.

Conclusions:

  • Progressive decrease in LVEDD within normal-sized hearts is an independent predictor of adverse outcomes.
  • Declining left ventricular size holds significant prognostic importance in cardiovascular health.