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Related Concept Videos

Mitral Valve Prolapse I: Introduction01:27

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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

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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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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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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.
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Mitral Stenosis I: Introduction01:22

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Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
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Mitral Regurgitation I: Introduction01:20

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Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
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Updated: Feb 16, 2026

Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve
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The Trileaflet Mitral Valve.

Jason Chui1, Robert H Anderson2, Roberto M Lang3

  • 1Department of Anesthesia and Perioperative Medicine, University of Western Ontario, London, Canada.

The American Journal of Cardiology
|January 7, 2018
PubMed
Summary
This summary is machine-generated.

The "trileaflet mitral valve" is likely a misnomer, not a new entity. Improved 3D echocardiography better visualizes existing conditions like mitral valve clefts or trifoliate atrioventricular valves.

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Area of Science:

  • Cardiovascular Imaging
  • Cardiac Morphology
  • Echocardiography

Background:

  • 3-dimensional echocardiography has enhanced mitral valve visualization.
  • Reports of a
  • trileaflet mitral valve
  • have increased, sparking debate about its nature.

Observation:

  • This study presents a case of a trifoliate valve.
  • Findings are interpreted through a systematic review of literature on trileaflet mitral valves, isolated mitral valve clefts, and trifoliate atrioventricular valves in atrioventricular septal defects (AVSD) with intact septa.

Findings:

  • The entity is described as a left atrioventricular valve, as it lacks normal mitral valve features.
  • Comparison of isolated mural leaflet clefts with trifoliate left atrioventricular valves in AVSD with intact septa highlights current controversies.

Implications:

  • The term
  • trileaflet left atrioventricular valve
  • may be a misnomer due to overlooking embryologic development and nomenclature.
  • The findings suggest it's not a distinct new disease entity but rather improved identification of known variations.