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Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

28
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...
28
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

47
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
47
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

31
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 Valve Prolapse I: Introduction01:27

Mitral Valve Prolapse I: Introduction

36
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...
36
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

38
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...
38
Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

30
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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Related Experiment Video

Updated: Aug 31, 2025

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery ALCAPA
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Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery ALCAPA

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Mitral Atresia with Normal Aortic Root.

P Syamasundar Rao1

  • 1Children's Heart Institute, Children's Memorial Hermann Hospital, McGovern Medical School, University of Texas-Houston, Houston, TX 77030, USA.

Children (Basel, Switzerland)
|August 26, 2022
PubMed
Summary

Mitral atresia with a normal aortic root is a rare congenital heart defect. Treatment involves staged surgical repair, typically the Fontan procedure, with careful monitoring for complications.

Keywords:
Fontan operationballoon atrial septostomybidirectional Glennblalocktaussig shuntinter-stage mortalitymitral atresiapatent foramen ovalepulmonary artery bandingsingle ventricle

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Area of Science:

  • Pediatric Cardiology
  • Congenital Heart Disease
  • Cardiac Surgery

Background:

  • Mitral atresia with normal aortic root is a rare congenital heart defect (CHD), accounting for less than 1% of all CHDs.
  • This condition involves an atretic mitral valve, a patent foramen ovale for left atrial blood egress, and either a single ventricle or a hypoplastic left ventricle, with a normal aortic valve/root by definition.

Purpose of the Study:

  • To define the anatomic and pathophysiologic components of mitral atresia with normal aortic root.
  • To outline the treatment strategy, including staged surgical interventions.
  • To discuss potential complications and monitoring recommendations.

Main Methods:

  • Diagnosis primarily relies on echo-Doppler studies, with minimal need for other imaging modalities.
  • Treatment focuses on addressing the defect and associated anomalies in early infancy.
  • Management involves a staged total cavo-pulmonary connection (Fontan procedure).

Main Results:

  • Clinical, roentgenographic, and electrocardiographic features are non-distinctive.
  • Echo-Doppler studies are crucial for accurate diagnosis and understanding pathophysiology.
  • Staged Fontan procedure is the eventual surgical requirement.

Conclusions:

  • Early diagnosis and management of associated anomalies are critical.
  • Staged Fontan procedure is the standard treatment, with potential complications arising during and after the stages.
  • Continuous monitoring for early detection and prompt management of complications is recommended.