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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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Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

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IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
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Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

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IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
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Mitral Valve Prolapse III: Nursing Management01:19

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The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
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Anatomy of the Heart01:27

Anatomy of the Heart

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The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
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Spontaneity02:21

Spontaneity

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A spontaneous process is one that occurs naturally under certain conditions. A nonspontaneous process, on the other hand, will not take place unless it is “driven” by the continual input of energy from an external source. Processes have a natural tendency to occur in one direction under a given set of conditions. Water will naturally flow downhill (spontaneous process), but uphill flow (nonspontaneous process) requires outside intervention such as the use of a pump. Iron exposed to...
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Related Experiment Video

Updated: Feb 4, 2026

Customizing a Cryolite Glass Prosthetic Eye
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[Prosthetic Valve].

Wataru Tatsuishi1, Kiyoharu Nakano

  • 1Division of Cardiovascular Surgery, Department of General Surgical Science, Gunma University, Maebashi, Japan.

Kyobu Geka. the Japanese Journal of Thoracic Surgery
|October 13, 2018
PubMed
Summary
This summary is machine-generated.

Advances in prosthetic valves improve outcomes for valvular disease treatment, reducing complications and reoperations. New bioprosthetic valves may significantly alter future treatment strategies and valve selection.

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Area of Science:

  • Cardiovascular Medicine
  • Biomedical Engineering

Background:

  • Effective valvular disease treatment requires optimal hemodynamics and prevention of thromboembolism, hemorrhage, and reoperation.
  • Development of prosthetic valves has led to significant improvements in patient outcomes.
  • Bioprosthetic valve usage is increasing due to enhanced durability and ongoing innovation.

Purpose of the Study:

  • To review the impact of prosthetic valve development on valvular disease treatment.
  • To highlight the increasing role and advancements in bioprosthetic valves.
  • To anticipate future changes in treatment strategies for valvular disease.

Main Methods:

  • Literature review on prosthetic valve development and clinical outcomes.
  • Analysis of trends in bioprosthetic valve utilization.
  • Discussion of potential future impacts on valve selection and reoperation.

Main Results:

  • Prosthetic valves have markedly improved results in valvular disease management.
  • Increased durability and new developments are driving the use of bioprosthetic valves.
  • Emerging technologies suggest a future shift in treatment paradigms.

Conclusions:

  • Prosthetic valve technology has significantly advanced valvular disease treatment.
  • Bioprosthetic valves represent a key area of innovation with increasing clinical relevance.
  • Future strategies for valve selection and reoperation are likely to be transformed by new bioprosthetic valve developments.