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Related Concept Videos

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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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 Stenosis III: Medical Management01:26

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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...
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Mitral Regurgitation III: Medical Management01:25

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Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
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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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Mitral Annular Disjunction: A Roadmap for the Surgeon.

Nikolaos Bonaros1, Can Gollmann-Tepeköylü1, Meindert Palmen2

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Mitral annular disjunction (MAD) is a complex heart condition linked to valve prolapse and arrhythmias. Early surgical intervention, alongside mitral annular stabilization, may improve outcomes, especially for patients with significant arrhythmias.

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Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Medical Imaging

Background:

  • Mitral annular disjunction (MAD) is a structural abnormality of the mitral annulus fibrosus.
  • It is associated with myxomatous leaflet degeneration, mitral valve prolapse (MVP), and ventricular arrhythmias.
  • Annular dilatation and abnormal motion increase mechanical stress, triggering leaflet degeneration.

Purpose of the Study:

  • To review the pathophysiology, diagnosis, and treatment of MAD in patients requiring mitral surgery.
  • To highlight the importance of early intervention in specific patient groups.
  • To discuss long-term outcomes and management strategies.

Main Methods:

  • Review of current literature on MAD.
  • Emphasis on non-invasive imaging techniques for diagnosis.
  • Discussion of surgical indications and treatment options, including ring annuloplasty.

Main Results:

  • Diagnosis relies on echocardiography, CT, and MRI for detailed assessment.
  • Early intervention may be beneficial for MAD with moderate regurgitation and arrhythmogenic MVP.
  • Ring annuloplasty stabilizes the annulus, reducing prolapse and enhancing antiarrhythmic effects.

Conclusions:

  • MAD is a complex entity with diagnostic and rhythm challenges.
  • Current surgical indications align with primary mitral regurgitation guidelines.
  • Early treatment is crucial, particularly for patients with arrhythmias.