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Related Concept Videos

Heart Valves01:16

Heart Valves

4.5K
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
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Related Experiment Video

Updated: Jun 23, 2025

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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Midterm results after aortic valve neocuspidization.

Anatol Prinzing1, Johannes Boehm1, Melchior Burri1

  • 1Department of Cardiovascular Surgery, Institute Insure, German Heart Center Munich, School of Medicine & Health, Technical University of Munich, Munich, Germany.

JTCVS Techniques
|June 20, 2024
PubMed
Summary
This summary is machine-generated.

Aortic valve neocuspidization shows excellent midterm durability and survival. This procedure maintains low pressure gradients, with low rates of structural valve degeneration and bioprosthetic valve failure, making it a viable option for aortic valve disease.

Keywords:
aortic valveaortic valve neocuspidizationautologous pericardiumheart valve

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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Valve Repair
  • Biomaterials in Medicine

Background:

  • Aortic valve neocuspidization using autologous pericardium is an emerging surgical technique for aortic valve disease.
  • Midterm durability and valve-related events following this procedure require further investigation.

Purpose of the Study:

  • To evaluate the midterm durability and clinical outcomes of aortic valve neocuspidization with autologous pericardium.
  • To assess valve-related events, including structural valve deterioration and reoperation rates.

Main Methods:

  • A cohort of 162 patients undergoing aortic valve neocuspidization between 2016 and 2021 was retrospectively analyzed.
  • Transthoracic echocardiography was performed preoperatively, at discharge, and annually postoperatively.
  • Data on survival, reoperation, structural valve deterioration, and hemodynamic performance were collected and analyzed.

Main Results:

  • Mean follow-up was 3.5 years. At 5 years, cumulative incidences of moderate/severe structural valve deterioration were 9.82% ± 3.87%, and bioprosthetic valve failure was 12.1% ± 4.12%.
  • Survival at 5 years was 97.3% ± 1.4%, with freedom from reoperation at 91.3% ± 2.4%.
  • Low pressure gradients were maintained postoperatively and during follow-up.

Conclusions:

  • Aortic valve neocuspidization demonstrates favorable midterm hemodynamic performance and excellent survival rates.
  • Low rates of structural valve degeneration and bioprosthetic valve failure suggest good durability.
  • Endocarditis was the primary indication for reoperation, highlighting the importance of infection prevention.