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Related Concept Videos

Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

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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 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...
31
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

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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...
33
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

29
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...
29
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...
36
Mitral Regurgitation II: Clinical Features and Diagnostic Tests01:23

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

35
Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
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Related Experiment Video

Updated: Aug 23, 2025

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Mitral Annular Disjunction: Associated Pathologies and Clinical Consequences.

Jonas Verbeke1, Anthony Demolder2, Julie De Backer2

  • 1Department of Cardiology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium. jdverbek.verbeke@ugent.be.

Current Cardiology Reports
|November 4, 2022
PubMed
Summary

Mitral annular disjunction (MAD) is linked to sudden cardiac death (SCD) in mitral valve prolapse (MVP) patients. Diagnosis and management of MAD present challenges, with unclear mechanisms and therapeutic implications.

Keywords:
Mitral annular disjunctionMitral regurgitationMitral valve prolapseSudden cardiac death

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Area of Science:

  • Cardiology
  • Cardiac Electrophysiology
  • Cardiovascular Imaging

Background:

  • Mitral annular disjunction (MAD) is increasingly recognized for its association with sudden cardiac death (SCD).
  • The "arrhythmic" mitral valve prolapse (MVP) syndrome highlights the link between MAD and SCD.
  • MAD, even in isolation, is suggested to be associated with severe arrhythmias and SCD.

Purpose of the Study:

  • To provide a comprehensive overview of mitral annular disjunction (MAD).
  • To discuss the significant challenges encountered in diagnosing and managing MAD.
  • To explore the current understanding and future directions in MAD research.

Main Methods:

  • Review of current literature on mitral annular disjunction (MAD).
  • Analysis of diagnostic modalities for MAD, including echocardiography and cardiac MRI.
  • Discussion of clinical implications and management strategies for patients with MAD.

Main Results:

  • Lack of consensus exists regarding the definition of MAD.
  • Uncertainty surrounds the optimal imaging modality for MAD diagnosis.
  • The precise mechanisms linking MAD to SCD remain largely unexplored.

Conclusions:

  • MAD is a critical consideration in patients with MVP and unexplained SCD.
  • Standardized diagnostic criteria and imaging protocols for MAD are needed.
  • Further research is essential to elucidate the pathophysiology and refine therapeutic approaches for MAD.