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Related Concept Videos

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 I: Introduction01:15

Aortic Regurgitation I: Introduction

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...
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...
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...
Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.

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Related Experiment Video

Updated: Jun 23, 2026

Technique and Patient Selection Criteria of Right Anterior Mini-Thoracotomy for Minimal Access Aortic Valve Replacement
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Transcatheter aortic valve replacement: Past, present, and future.

Akash Srinivasan1, Felyx Wong2, Brian Wang3

  • 1Division of Medical Sciences, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK.

Clinical Cardiology
|January 25, 2024
PubMed
Summary

Transcatheter aortic valve replacement (TAVR) offers a minimally invasive option for severe aortic stenosis, proving effective across various patient risk profiles. Further research is needed on long-term outcomes, especially in younger, low-risk individuals.

Keywords:
aortic stenosisprosthesessurgerytranscatheter aortic valve replacement (TAVR)valvular heart disease

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Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Medical Technology

Background:

  • Transcatheter aortic valve replacement (TAVR) is a minimally invasive procedure for severe aortic stenosis.
  • Initially for high-risk elderly patients, TAVR is now used in a wider patient population.
  • TAVR presents an alternative to traditional open-heart surgery.

Purpose of the Study:

  • To review key TAVR studies and their implications.
  • To identify areas for procedural improvement and future directions.
  • To explore TAVR's expanding applications in other valve replacements.

Main Methods:

  • Review of large-scale clinical trials and follow-up data.
  • Analysis of patient suitability and anatomical considerations via preprocedural imaging.
  • Evaluation of periprocedural and postprocedural assessments.

Main Results:

  • TAVR demonstrates comparable or superior outcomes to surgery across diverse surgical risk profiles (extreme to low risk).
  • Preprocedural imaging is crucial for valve sizing and access site selection.
  • Postprocedural assessment is vital for managing potential complications.

Conclusions:

  • TAVR is a viable and effective treatment for severe aortic stenosis in a broad patient range.
  • Long-term data, particularly for low-risk and younger patients, requires further investigation.
  • TAVR technology shows promise for expanded use in other cardiac valve interventions.