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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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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in 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 Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

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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...
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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...
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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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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
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Left atrial myxoma with biventricular dysfunction.

Monish S Raut1, Sujay Shad2, Arun Maheshwari1

  • 1Department of Cardiac Anesthesiology, Sir Ganga Ram Hospital, New Delhi, India.

Indian Heart Journal
|October 19, 2016
PubMed
Summary
This summary is machine-generated.

Left atrial myxoma rarely causes severe ventricular dysfunction without coronary artery disease. This presentation may indicate underlying dilated cardiomyopathy or a direct cardiodepressant effect of the myxoma needing further investigation.

Keywords:
Left atriumMyxomaVentricular dysfunction

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Area of Science:

  • Cardiology
  • Cardiac Oncology

Background:

  • Left atrial myxoma is a primary cardiac tumor, typically benign.
  • Ventricular dysfunction can arise from various cardiac pathologies, including tumors.

Observation:

  • A rare case of left atrial myxoma presenting with severe ventricular dysfunction.
  • Absence of obstructive coronary artery disease was noted in the patient.

Findings:

  • The co-occurrence of left atrial myxoma and severe ventricular dysfunction without coronary artery disease is highly unusual.
  • Potential causes include undiagnosed dilated cardiomyopathy or a direct cardiodepressant effect of the myxoma.

Implications:

  • This case highlights the need for comprehensive cardiac evaluation in patients with myxoma, even in the absence of typical coronary artery disease symptoms.
  • Further research is warranted to elucidate the potential cardiodepressant mechanisms of cardiac myxomas.