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Related Concept Videos

Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

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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 III: Medical Management01:26

Mitral Stenosis III: Medical Management

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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 II: Clinical Features and Diagnostic Tests01:23

Mitral Regurgitation II: Clinical Features and Diagnostic Tests

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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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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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Mitral Regurgitation IV: Nursing Management01:28

Mitral Regurgitation IV: Nursing Management

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Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...
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Related Experiment Video

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A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
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Repair or replace for severe ischemic mitral regurgitation: prospective randomized multicenter data.

Damien J LaPar1, Michael A Acker1, Annetine C Gelijns1

  • 11 Investigators for the Cardiothoracic Surgical Trials Network (CTSN): University of Virginia School of Medicine, Charlottesville, VA, USA ; 2 University of Pennsylvania School of Medicine, Philadelphia, PA, USA ; 3 Icahn School of Medicine at Mount Sinai, New York, NY, USA.

Annals of Cardiothoracic Surgery
|November 6, 2015
PubMed
Summary

Ischemic mitral regurgitation (IMR) management is evolving. The Cardiothoracic Surgical Trials Network (CTSN) randomized controlled trial compared mitral repair versus replacement for severe mitral regurgitation (SMR), offering crucial data for optimal surgical strategies.

Keywords:
Ischemicmitral regurgitation (MR)repairreplacement

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Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Clinical Trials

Background:

  • Ischemic mitral regurgitation (IMR), a type of functional mitral regurgitation (MR), affects more patients due to increased survival post-myocardial infarction.
  • Negative impacts of IMR are well-documented, yet optimal surgical treatment (repair vs. replacement) for severe mitral regurgitation (SMR) remains debated.
  • Lack of Level I randomized controlled trial (RCT) data has hindered definitive treatment allocation for SMR.

Purpose of the Study:

  • To describe the design, results, and implications of the Cardiothoracic Surgical Trials Network (CTSN) RCT comparing mitral repair versus replacement for SMR.
  • To identify the most efficacious surgical approach for severe mitral regurgitation (SMR).
  • To investigate predictors of MR recurrence after mitral repair.

Main Methods:

  • Conducted the first RCT funded by NHLBI, NINDS, and CIHR comparing mitral repair versus replacement for SMR.
  • Detailed description of the CTSN SMR trial's design and execution.
  • Analysis of data to predict MR recurrence post-mitral repair.

Main Results:

  • Presents the findings of the CTSN SMR trial, comparing outcomes of mitral repair and replacement.
  • Discusses the efficacy of each surgical approach for SMR based on RCT data.
  • Identifies factors influencing the recurrence of MR following mitral repair.

Conclusions:

  • The CTSN SMR trial provides critical evidence to guide surgical decision-making for patients with severe mitral regurgitation.
  • Understanding predictors of MR recurrence aids in optimizing post-operative management and patient selection for mitral repair.
  • This research addresses a significant gap in clinical evidence for managing IMR.