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Related Concept Videos

Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

20
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 Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

27
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...
27
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

15
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...
15
Mitral Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

25
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...
25
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

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

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

29
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...
29

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Related Experiment Video

Updated: Aug 1, 2025

An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
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Mitral valvar anomalies causing subaortic stenosis: two rare case reports.

Raid Faraj1,2, Hassan Dib1,2, Houda Belhoussine1,2

  • 1Mohammed V University.

Annals of Medicine and Surgery (2012)
|April 28, 2023
PubMed
Summary

Subaortic stenosis (SubAS) is an acquired condition, often mistaken for hypertrophic cardiomyopathy. This study highlights SubAS secondary to mitral valve anomalies, emphasizing its progressive nature and risk of recurrence.

Keywords:
discrete subaortic stenosisechocardiographymitral valvar anomaliessubaortic stenosis

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Area of Science:

  • Cardiology
  • Medical Diagnostics
  • Surgical Pathology

Background:

  • Subaortic stenosis (SubAS) is a frequent cause of left ventricular outflow tract obstruction.
  • Historically viewed as congenital, SubAS is now recognized as an acquired anomaly linked to pre-existing septal and mitral valve alterations.
  • It is a progressive condition often misdiagnosed as obstructive hypertrophic cardiomyopathy, leading to potential complications.

Observation:

  • This paper presents two cases of SubAS arising secondary to distinct mitral valvar anomalies.
  • Echocardiographic analysis was crucial for diagnosis and understanding the underlying mechanisms.

Findings:

  • Subaortic stenosis can develop secondary to various mitral valve abnormalities.
  • Echocardiography is a key diagnostic tool for identifying SubAS and its mechanisms.

Implications:

  • This work underscores the importance of recognizing SubAS as a potentially underdiagnosed condition.
  • There is a significant risk of recurrence even after surgical intervention for SubAS.
  • Accurate diagnosis and understanding of acquired causes are vital for managing SubAS and preventing complications.