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Related Concept Videos

Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
Cardiac Catheterization I: Pre-Procedure Overview01:28

Cardiac Catheterization I: Pre-Procedure Overview

Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
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...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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...
Continuous Renal Replacement Therapy01:30

Continuous Renal Replacement Therapy

Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...

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Related Experiment Video

Updated: Jun 23, 2026

Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation
06:04

Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation

Published on: August 8, 2025

[Transcatheter aortic valve replacement].

S Noble1, R Bonan

  • 1Institut de cardiologie de Montréal, Département de médecine, Université de Montréal, 5000 Rue Bélanger Est, Montréal, Qc HIT IC8. stephane.noble@hcuge.ch

Revue Medicale Suisse
|April 21, 2009
PubMed
Summary
This summary is machine-generated.

Percutaneous aortic valve replacement (AVR) offers a curative option for severe aortic stenosis, particularly for high-risk patients. While evolving, careful patient selection is crucial for this minimally invasive procedure.

Related Experiment Videos

Last Updated: Jun 23, 2026

Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation
06:04

Upper-extremity Approach for Secondary Access in Transfemoral Transcatheter Aortic Valve Implantation

Published on: August 8, 2025

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Medical Devices

Context:

  • Severe aortic stenosis presents a significant clinical challenge.
  • Conventional surgical aortic valve replacement (SAVR) carries high risks for certain patient populations.
  • Over a decade of development preceded the first percutaneous aortic valve replacement (AVR).

Purpose:

  • To review the evolution and current status of percutaneous aortic valve replacement (AVR).
  • To highlight key considerations for patient selection in percutaneous AVR.
  • To compare percutaneous AVR with conventional surgical approaches.

Summary:

  • The first percutaneous AVR was performed in 2002, offering a less invasive alternative to surgery.
  • Two primary valve systems, CoreValve and Edwards SAPIEN, have been widely adopted, each used in over 1,500 patients.
  • Patient selection criteria, including vascular access, cardiac status, and annulus size, are critical for successful outcomes.

Impact:

  • Percutaneous AVR has emerged as a viable treatment for severe aortic stenosis, especially in high-risk individuals.
  • The technique has seen significant material and procedural improvements, becoming a purely percutaneous intervention in many centers.
  • Despite enthusiasm, conventional surgery remained the established gold standard as of late 2008.