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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...
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...

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Related Experiment Video

Updated: Jun 22, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
14:14

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Published on: December 11, 2017

Valve-sparing aortic root stabilization in acute type a aortic dissection.

Malakh Shrestha1, Nawid Khaladj, Christian Hagl

  • 1, Division of Cardiac, Thoracic, Transplantation and Vascular Surgery, Hannover Medical School, Carl Neuberg Str. 1, 30625 Hannover, Germany. Shrestha.Malakh.Lal@mh-hannover.de

Asian Cardiovascular & Thoracic Annals
|June 12, 2009
PubMed
Summary
This summary is machine-generated.

A novel technique stabilizes the aortic root in acute type A aortic dissection patients. This valve-sparing method avoids reimplantation, preserving native aortic valve function and coronary ostia.

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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

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Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

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Last Updated: Jun 22, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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Published on: December 11, 2017

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
06:26

Novel and Innovative Hybrid Technique for Type A Aortic Dissection

Published on: March 28, 2025

Area of Science:

  • Cardiovascular Surgery
  • Thoracic Surgery
  • Aortic Aneurysm Research

Background:

  • Composite replacement is standard for acute type A aortic dissection involving the aortic root.
  • Valve-sparing procedures like reimplantation or remodeling are alternatives.

Purpose of the Study:

  • To present a new, simple technique for stabilizing the aortic root in acute type A aortic dissection.
  • To evaluate the efficacy of this valve-sparing method.

Main Methods:

  • A Dacron graft is externally attached to the native aortic cylinder.
  • Vertical incisions create openings for coronary ostia, avoiding reimplantation of the valve or coronaries.
  • The technique was applied to 14 patients between 2002 and 2007.

Main Results:

  • Four (28.6%) patients died within 30 days, primarily those hemodynamically unstable preoperatively.
  • All surviving patients demonstrated normal aortic valve function without regurgitation on echocardiography.
  • The technique successfully preserved the native aortic valve and coronary ostia.

Conclusions:

  • This external graft technique offers a valve-sparing alternative for aortic root stabilization in acute type A aortic dissection.
  • It simplifies the procedure by eliminating the need for aortic valve and coronary ostia reimplantation.
  • The method shows promising results in preserving native valve function.