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Related Concept Videos

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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 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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Related Experiment Video

Updated: Apr 25, 2026

Studying Left Ventricular Reverse Remodeling by Aortic Debanding in Rodents
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Left ventricular remodelling in aortic stenosis.

Andrew N Rassi1, Philippe Pibarot2, Sammy Elmariah1

  • 1Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.

The Canadian Journal of Cardiology
|August 25, 2014
PubMed
Summary
This summary is machine-generated.

Aortic stenosis (AS) causes left ventricular (LV) remodelling that initially compensates but becomes maladaptive, impacting function and outcomes. Early intervention considering LV performance is crucial for better results after aortic valve replacement.

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Area of Science:

  • Cardiology
  • Cardiovascular Physiology

Background:

  • Aortic stenosis (AS) is a progressive valvular disease with significant mortality.
  • Hemodynamic changes in AS critically affect left ventricular (LV) function and structure.

Purpose of the Study:

  • To review the adaptive and maladaptive left ventricular remodelling in response to aortic stenosis.
  • To analyze the impact of LV remodelling on systolic and diastolic function, symptoms, and clinical outcomes.

Main Methods:

  • Review of existing literature on left ventricular remodelling in aortic stenosis.
  • Analysis of the functional and clinical consequences of adaptive and maladaptive LV remodelling.

Main Results:

  • LV remodelling begins as a compensatory adaptation but can progress to a maladaptive state.
  • Maladaptive LV remodelling adversely affects diastolic and systolic function, leading to symptoms and poorer clinical outcomes.
  • The effects of maladaptive remodelling can persist even after aortic valve replacement.

Conclusions:

  • Left ventricular remodelling in AS is a dynamic process with significant implications for patient prognosis.
  • Assessment of LV performance beyond systolic function is essential for optimizing the timing of aortic valve replacement.
  • Addressing maladaptive LV remodelling may improve outcomes in patients with aortic stenosis.