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Related Concept Videos

Heart Valves01:16

Heart Valves

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...
Minor Losses in Pipes01:25

Minor Losses in Pipes

In pipe systems, minor losses refer to energy losses arising from components such as valves, bends, fittings, expansions, and other features that disrupt the steady flow of fluid. These disturbances cause energy dissipation through turbulence and resistance, which engineers quantify to manage system efficiency effectively.
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Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves
11:12

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Published on: October 17, 2013

Energy loss for evaluating heart valve performance.

Cary W Akins1, Brandon Travis, Ajit P Yoganathan

  • 1Division of Cardiac Surgery, Massachusetts General Hospital, Boston, Massachusetts 02114, USA. cakins@partners.org

The Journal of Thoracic and Cardiovascular Surgery
|October 29, 2008
PubMed
Summary

Energy loss, an engineering concept, offers insights into heart valve function and its effect on the heart muscle. Easier data collection now allows for its application in assessing valvular prostheses and heart valve disease.

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Area of Science:

  • Biomedical Engineering
  • Cardiovascular Physiology
  • Medical Device Evaluation

Background:

  • Energy loss is a known engineering principle.
  • Its application to heart valve assessment is limited by understanding and data acquisition tools.
  • Advancements in technology facilitate easier data gathering for energy loss estimation.

Purpose of the Study:

  • To define energy loss in the context of heart valve function.
  • To explain methods for measuring energy loss.
  • To explore clinical applications of energy loss in valvular heart disease.

Main Methods:

  • Review of existing literature on energy loss principles.
  • Discussion of methodologies for quantifying energy loss in cardiac systems.
  • Exploration of potential clinical applications for energy loss analysis.

Main Results:

  • Energy loss provides a metric for evaluating native heart valve and prosthesis performance.
  • Improved data acquisition tools are making energy loss estimation more feasible.
  • Understanding energy loss can elucidate the impact of valvular disease on ventricular function.

Conclusions:

  • Revisiting the efficacy of energy loss for heart valve performance evaluation is timely.
  • Energy loss analysis can offer valuable insights into myocardial performance.
  • This approach can enhance the understanding and management of heart valve disease.