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Related Concept Videos

Heart Valves01:16

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
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

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Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
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Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis

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Boston Scientific Lotus valve.

Ian T Meredith1, Kristin L Hood, Nicole Haratani

  • 1MonashHEART, Southern Health, Monash Medical Centre, Clayton, Victoria, Australia. ian.meredith@myheart.id.au

Eurointervention : Journal of Europcr in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
|September 22, 2012
PubMed
Summary
This summary is machine-generated.

Transcatheter aortic valve replacement (TAVR) is gaining traction for high-risk patients. The novel Lotus valve aims to improve outcomes by offering repositionability to reduce complications like stroke and regurgitation.

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Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Medical Devices

Background:

  • Transcatheter aortic valve replacement (TAVR) is increasingly used for high-risk patients unsuitable for surgical aortic valve replacement.
  • Current TAVR technologies face limitations including stroke risk, vascular complications, and paravalvular aortic regurgitation, impacting patient survival.
  • Advancements in valve design are crucial for improving TAVR outcomes.

Purpose of the Study:

  • To evaluate the safety and efficacy of the Lotus aortic valve replacement system.
  • To assess the potential of a fully repositionable device to improve TAVR procedural precision and reduce complications.

Main Methods:

  • Systematic investigation within the REPRISE clinical trial program.
  • Focus on a novel, fully repositionable transcatheter aortic valve system.

Main Results:

  • Ongoing evaluation of the Lotus valve's performance in clinical trials.
  • Data collection on safety endpoints such as stroke and vascular complications.
  • Assessment of efficacy, including the reduction of paravalvular aortic regurgitation.

Conclusions:

  • The Lotus valve represents a new generation of TAVR devices designed for enhanced deliverability and reduced complications.
  • The REPRISE trial program is systematically studying the Lotus valve to establish its role in TAVR for high-risk patients.
  • Further data are needed to confirm the long-term impact of this technology on patient survival and quality of life.