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Related Concept Videos

Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

1.1K
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

1.4K
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...
1.4K
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

1.3K
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...
1.3K
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

1.8K
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...
1.8K
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

557
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
557
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

535
Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
535

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Related Experiment Video

Updated: May 3, 2026

An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
07:42

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Published on: May 19, 2020

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Chronic thyroiditis and mitral valve prolapse.

A D Marks, B J Channick, E V Adlin

    Annals of Internal Medicine
    |April 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Patients with chronic lymphocytic thyroiditis, an autoimmune thyroid disorder, have a significantly higher prevalence of mitral valve prolapse. This finding suggests a potential link between autoimmune thyroid conditions and heart valve issues.

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    An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
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    Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
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    Area of Science:

    • Cardiology
    • Endocrinology
    • Immunology

    Background:

    • Autoimmune thyroid disorders, such as diffuse toxic goiter, are associated with mitral valve prolapse.
    • Chronic lymphocytic thyroiditis is another common autoimmune thyroid condition.

    Purpose of the Study:

    • To investigate the prevalence of mitral valve prolapse in patients with chronic lymphocytic thyroiditis.
    • To explore potential associations between chronic lymphocytic thyroiditis and mitral valve prolapse.

    Main Methods:

    • A case-control study was conducted.
    • Prevalence of mitral valve prolapse was assessed in 75 patients with chronic lymphocytic thyroiditis and 50 healthy controls.
    • Statistical analysis included odds ratios and confidence intervals.

    Main Results:

    • Mitral valve prolapse was found in 41% of patients with chronic lymphocytic thyroiditis versus 8% in controls.
    • The odds ratio for mitral valve prolapse in chronic lymphocytic thyroiditis patients was 8.10 (age-race adjusted: 9.26).
    • No correlation was observed with hypothyroidism, antithyroid antibodies, or disease duration.

    Conclusions:

    • The prevalence of mitral valve prolapse is substantially increased in patients with chronic lymphocytic thyroiditis.
    • Autoimmune thyroid disorders may be linked to a higher incidence of mitral valve prolapse.
    • Further research is warranted to elucidate the underlying etiologic mechanisms.