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Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
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...
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...
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
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...
Unsoundness of Aggregate due to Volume Change01:26

Unsoundness of Aggregate due to Volume Change

Unsoundness in aggregates due to volume changes is primarily caused by the physical alterations aggregates undergo, such as freezing and thawing, thermal changes, and wetting and drying. Unsound aggregates, when subjected to these changes, result in volume change upon disintegration. This, in turn, contributes to the deterioration of concrete, including scaling, pop-outs, and cracking. Particular types of aggregates, such as porous flints, cherts, and those containing clay minerals, are...

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Related Experiment Video

Updated: May 27, 2026

Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment
08:49

Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment

Published on: August 2, 2024

Volume overload.

Blase A Carabello1

  • 1Department of Medicine, Baylor College of Medicine, Houston, TX, USA. blaseanthony.carabello@med.va.gov

Heart Failure Clinics
|November 24, 2011
PubMed
Summary

Cardiac volume overload diseases cause unique heart remodeling patterns. Understanding these adaptations can guide treatments for heart conditions.

Area of Science:

  • Cardiology
  • Cardiac Physiology
  • Pathophysiology

Background:

  • Structural cardiac volume overload encompasses diverse diseases.
  • Each disease presents unique ventricular loading conditions.

Purpose of the Study:

  • To explore the heart's adaptive and maladaptive remodeling responses to varied volume overload conditions.
  • To inform therapeutic strategies for cardiac volume overload.

Main Methods:

  • Review of existing literature on cardiac remodeling in response to volume overload.
  • Analysis of unique patterns of hypertrophy and remodeling.

Main Results:

  • Cardiac volume overload diseases induce distinct ventricular remodeling patterns.

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Adult and Pediatric Porcine Model of Acute Volume Overload
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Adult and Pediatric Porcine Model of Acute Volume Overload

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Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge
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Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge

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Related Experiment Videos

Last Updated: May 27, 2026

Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment
08:49

Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment

Published on: August 2, 2024

Adult and Pediatric Porcine Model of Acute Volume Overload
06:09

Adult and Pediatric Porcine Model of Acute Volume Overload

Published on: January 12, 2024

Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge
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Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge

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  • These remodeling patterns are a direct response to specific loading conditions.

    • Conclusions:

    • Understanding specific cardiac remodeling patterns is crucial for effective treatment timing and correction of volume overload.
    • Tailoring interventions based on unique disease-induced remodeling may improve patient outcomes.