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Related Concept Videos

Heart Valves01:16

Heart Valves

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The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
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Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

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Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
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Assessment of the Cardiovascular System IV: Auscultation01:25

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Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
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Assessing the Apical Pulse
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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.
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Regulation of Stroke Volume01:27

Regulation of Stroke Volume

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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.
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Related Experiment Video

Updated: Jun 4, 2025

Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
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Tricuspid valve: Once disregarded, now acknowledged.

Eshan Ashcroft1, Ian Beeton2, Pankaj Sharma3

  • 1Royal Holloway University of London and Ashford & St Peters NHS Foundation Trust, UK.

International Journal of Cardiology. Congenital Heart Disease
|December 23, 2024
PubMed
Summary

This review highlights the right heart (RH) as a functional unit and examines tricuspid regurgitation (TR) classifications. It explores the potential for a "pacing lead TR" subtype and current treatment strategies for RH disease.

Keywords:
EchocardiographyInterventionsRight heart failureTricuspid valve

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Area of Science:

  • Cardiology
  • Cardiac Physiology
  • Echocardiography

Background:

  • The Tricuspid Valve (TV) and right heart (RH) diseases have gained significant clinical and research attention.
  • Understanding the RH as a single functioning unit under various loading conditions is crucial.

Purpose of the Study:

  • To review the importance of the right heart (RH) and its diseases.
  • To examine the current tricuspid regurgitation (TR) classification model.
  • To explore the potential for a distinct "pacing lead TR" subtype.

Main Methods:

  • Literature review focusing on right heart function and tricuspid regurgitation.
  • Analysis of current TR classification systems.
  • Discussion of treatment strategies and outcomes.

Main Results:

  • The RH functions as an integrated unit under normal and altered conditions.
  • Current TR classification may require refinement to include pacing-induced TR.
  • TR significantly impacts patient outcomes and influences treatment decisions.

Conclusions:

  • A comprehensive understanding of the RH is essential for managing TV and RH diseases.
  • Further research is warranted to investigate "pacing lead TR" as a distinct entity.
  • This review provides insights for clinicians managing patients with TR and RH dysfunction.