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Related Concept Videos

Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

92
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...
92
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

96
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...
96

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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Geometric changes in aortic root replacement using Freestyle prosthesis.

Anja Osswald1, Alina Zubarevich2, Arian Arjomandi Rad3

  • 1Department of Thoracic and Cardiovascular Surgery, West-German Heart and Vascular Center Essen, Essen, Germany. Anja.osswald@uk-essen.de.

Journal of Cardiothoracic Surgery
|July 29, 2021
PubMed
Summary
This summary is machine-generated.

The Medtronic Freestyle prosthesis effectively restores aortic geometry after replacement surgery. Preoperative computed tomography angiography (CTA) aids in valve selection and surgical planning for improved outcomes.

Keywords:
Aortic rootAortic valve replacementBiorootComputed tomography measurement

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Area of Science:

  • Cardiovascular Surgery
  • Medical Devices
  • Radiology

Background:

  • The Medtronic Freestyle prosthesis is a viable option for aortic root replacement.
  • Evaluating its impact on aortic geometry and clinical outcomes is crucial.

Purpose of the Study:

  • To assess clinical outcomes following Medtronic Freestyle prosthesis implantation.
  • To analyze geometric changes in the aorta post-Freestyle prosthesis implantation.

Main Methods:

  • Computed tomography angiography (CTA) data from 32 patients were analyzed.
  • Preoperative and postoperative aortic dimensions and volumes were measured using 3D multiplanar reconstruction.
  • Volumetric changes in the aortic root and ascending aorta were quantified.

Main Results:

  • Aortic root diameter and area decreased post-Freestyle implantation, reducing root volume.
  • Aortic root and ascending aorta volumes significantly decreased after prosthesis implantation.
  • Preoperative aortic annulus measurements correlated strongly with implanted valve size.

Conclusions:

  • Freestyle prosthesis implantation demonstrates excellent results in restoring aortic geometry.
  • Preoperative CTA measurements are valuable for surgical planning and valve selection.
  • Utilizing CTA data preoperatively can enhance the surgical procedure and patient outcomes.