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Related Concept Videos

Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

155
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...
155
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

148
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...
148
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

159
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...
159

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Related Experiment Video

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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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Rapid-deployment aortic valve replacement in high-risk patients: A case-control study.

Adama Sawadogo1,2, An Vinh Bui-Duc1,3, Nicolas D'Ostrevy1

  • 1Department of Cardiovascular, University Hospital of Clermont-Ferrand, France.

Journal of Cardiovascular and Thoracic Research
|April 5, 2021
PubMed
Summary

Rapid-deployment aortic valve replacement (RD-AVR) is a reliable alternative for high-risk patients, showing positive mid-term outcomes. This technique offers larger prosthetic sizes and better aortic root flow compared to conventional AVR.

Keywords:
Aortic Valve ReplacementCalcified Aortic StenosisEuroSCORE IIRapid Deployment Aortic Valve

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Area of Science:

  • Cardiology
  • Cardiac Surgery
  • Medical Devices

Background:

  • Aortic valve stenosis is a common cardiac pathology.
  • Conventional aortic valve replacement (C-AVR) poses risks for high-risk patients.
  • Rapid-deployment valves (RDV) aim to mitigate surgical risks.

Purpose of the Study:

  • To compare mid-term outcomes of rapid-deployment AVR (RD-AVR) versus C-AVR in high-risk patients.
  • Evaluate the efficacy and safety of RD-AVR in a vulnerable patient population.

Main Methods:

  • Retrospective case-control study.
  • 23 high-risk patients undergoing RD-AVR (12/2015-01/2018) compared to 46 matched C-AVR patients (2016-2017).
  • Matched for age and Euro SCORE II, considering cardiovascular risk factors and prosthetic size.

Main Results:

  • RD-AVR group had higher cardiovascular risk factors and Euro SCORE II (P=0.06).
  • Significantly larger prosthetic size used in RD-AVR (P<0.001).
  • Zero in-hospital mortality for RD-AVR vs. 2 deaths in C-AVR; longer hospital stay for RD-AVR (P=0.03); lower early mean gradient in RD-AVR subgroup with associated procedures (P=0.02).

Conclusions:

  • RD-AVR is a reliable technique with positive mid-term outcomes.
  • RD-AVR facilitates larger valve sizes, improving aortic root flow.
  • It serves as a viable alternative to C-AVR for surgically fragile patients.