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Complete aortic root replacement in patients with small aortic annulus.

Paul P Urbanski1

  • 1Herz- und Gefaess-Klinik, Bad Neustadt, Germany. urbanski@kardiochirurg.de

The Annals of Thoracic Surgery
|March 20, 2002
PubMed
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This study shows a modified valved composite graft is effective for aortic valve replacement in patients with a narrow aortic annulus, avoiding valve-patient mismatch and demonstrating excellent hemodynamic performance.

Area of Science:

  • Cardiovascular Surgery
  • Biomedical Engineering

Background:

  • Evaluation of a novel surgical technique for aortic annulus.
  • Focus on modified self-assembled valved composite grafts.

Purpose of the Study:

  • Assess the efficacy of a modified self-assembled valved composite graft.
  • Address valve-patient mismatch in narrow aortic annuli.

Main Methods:

  • 10 patients with narrow aortic annulus underwent aortic valve and ascending aorta replacement.
  • Used a modified self-assembled valved composite graft with a mechanical valve prosthesis.
  • Indications included ascending aortic aneurysm and aortic dissection.

Main Results:

  • No hospital mortality observed.

Related Experiment Videos

  • Excellent hemodynamic performance confirmed by echocardiography.
  • Mean transvalvular gradient of 10.7 mm Hg +/- 2.8 mm Hg.

    • Conclusions:

    • The modified valved composite graft provides superior hemodynamic results.
    • This graft is a simple and effective solution for valve-patient mismatch.
    • Suitable for patients with small aortic annuli requiring aortic root replacement.