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Related Concept Videos

Regulation of Stroke Volume01:27

Regulation of Stroke Volume

3.1K
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...
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Imbalances in Cardiac Output01:26

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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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Related Experiment Video

Updated: May 27, 2025

Surgically Induced Cardiac Volume Overload by Aortic Regurgitation in Mouse
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Left Ventricular Hypertrabeculation: An Unexpected Cause of Stroke?

Sandra Cunha1, Luís Luz1, Mónica Amado2

  • 1Internal Medicine, Unidade Local de Saúde da Região de Leiria, Leiria, PRT.

Cureus
|February 17, 2025
PubMed
Summary

A rare ischemic stroke in a 53-year-old male was linked to left ventricular hypertrabeculation. This case underscores the critical need for thorough etiological investigations in young stroke patients.

Area of Science:

  • Cardiology
  • Neurology
  • Vascular Medicine

Background:

  • Stroke in young adults is uncommon but carries significant morbidity and mortality.
Keywords:
cardioemboólicostrokestroke in young populationventricular hypertrophyventricular trabeculation

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  • Undetermined causes are more frequent in young stroke patients, necessitating comprehensive etiological studies.
  • Left ventricular hypertrabeculation (LVH) is a rare cardiac anomaly.