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Related Concept Videos

Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

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...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

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...
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

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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Related Experiment Video

Updated: Jul 16, 2026

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
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Percutaneous Pulmonary Valve Implantation In Native Right Ventricular Outflow Tract Using Myval™ Without

João Luiz Langer Manica1,2, Raul Ivo Rossi Filho1,2, Carlos Augusto Cardoso Pedra3

  • 1Instituto de Cardiologia Porto Alegre Brazil.

Health Science Reports
|April 11, 2025
PubMed
Summary

New MyVal™ valves offer a safe and effective percutaneous treatment for large native right ventricular outflow tract (RVOT) dysfunction. This study shows successful implantation without pre-stenting in patients previously unsuitable for other procedures.

Keywords:
percutaneouspulmonary regurgitationpulmonary valve implantationright ventricular outflow tracttetralogy of fallottranscatheter

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Area of Science:

  • Cardiovascular Surgery
  • Interventional Cardiology
  • Medical Devices

Background:

  • Percutaneous pulmonary valve implantation (PPVI) is an alternative for conduit dysfunction.
  • Existing PPVI options have limitations for large native right ventricular outflow tracts (RVOTs).
  • The 30.5 and 32 mm MyVal™ balloon-expandable valves offer new possibilities for these patients.

Purpose of the Study:

  • To evaluate the immediate outcomes of percutaneous implantation of 30.5 and 32 mm MyVal™ valves.
  • To assess the efficacy in native and large RVOTs without pre-stenting.

Main Methods:

  • Seventeen patients with dysfunctional native RVOTs underwent PPVI.
  • Implantation of 30.5 mm (n=5) and 32 mm (n=12) MyVal™ valves was performed directly without pre-stenting.
  • Mean patient age was 26.2 years; mean RVOT diameter was 27.6 mm.

Main Results:

  • All patients achieved satisfactory valve function immediately post-implantation.
  • The average hospital stay was 3.2 days.
  • No pre-stenting was required for any of the procedures.

Conclusions:

  • The 30.5 and 32 mm MyVal™ valves are a safe and effective option for percutaneous treatment of large native RVOTs.
  • These valves provide a viable alternative to surgical repair and existing percutaneous methods.
  • This technique expands treatment options for patients with complex RVOT conditions.