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Related Experiment Videos

Sizing for modified David's reimplantation procedure.

Lars G Svensson1

  • 1Department of Thoracic and Cardiovascular Surgery, Center for Aortic Surgery, The Cleveland Clinic Foundation, Cleveland, Ohio, USA. svenssl@ccf.org

The Annals of Thoracic Surgery
|November 7, 2003
PubMed
Summary
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A modified David procedure using a Hegar

Area of Science:

  • Cardiovascular Surgery
  • Aortic Valve Repair
  • Marfan Syndrome

Background:

  • Sizing challenges in David reimplantation aortic valve repair, especially for Marfan syndrome patients.
  • Need for a standardized and reliable sizing technique.

Purpose of the Study:

  • To describe a modified technique for sizing during David reimplantation aortic valve repair.
  • To address concerns regarding graft, annulus, and left ventricular outflow tract sizing.

Main Methods:

  • A modified technique involving repair around a Hegar's dilator was used in over 20 patients.
  • Graft and annulus sizing based on normalized annular size relative to body surface area.
  • Creation of a neosinus in the aortic root during the procedure.

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Main Results:

  • Successful application of the modified sizing technique in a cohort of over 20 patients.
  • The method provides a standardized approach to sizing for the David procedure.
  • The technique facilitates neosinus formation, potentially improving aortic root geometry.

Conclusions:

  • The modified Hegar dilator technique offers a reliable solution for sizing challenges in David aortic valve reimplantation.
  • This approach is particularly beneficial for patients with Marfan syndrome.
  • The technique aids in achieving appropriate dimensions and neosinus creation for aortic valve repair.