NDLI: Impact of Graft Size and Resuspension Level of the Commissures on Aortic Insufficiency after Reimplantation of the Aortic Valve

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Impact of Graft Size and Resuspension Level of the Commissures on Aortic Insufficiency after Reimplantation of the Aortic Valve

Content Provider	Scilit
Author	Babin-Ebell, J. Vogt, P. Roth, P.
Editor	Vivo, F. De
Copyright Year	2007
Description	Background: In addition to the size of the graft, the resuspension of the commissures has been described as important for valve function in valve-sparing aortic root replacement procedures. This study describes the influence of a stepwise reduction of the fixation level of the commissures within the graft as well as a stepwise reduction of graft size on valve insufficiency. Method: Porcine aortic valves were reimplanted into a tubular graft and the height of the commissures was reduced in a stepwise manner. In a second series of experiments, the diameter of the grafts was reduced by 30 % and 50 %. Results: A reduction of the commissure heights by 10 % and 20 % caused a significant increase in reflux water. Using the criteria of homograft preparation, a 10 %, but not a 20 %, reduction was tolerated. The coaptation level of the valve became increasingly lower, indicating a higher risk for late valve incompetence. A reduction of the prosthesis diameter by 30 % and 50 % did not result in insufficiency of the valve but it lowered the coaptation level. Conclusion: Resuspension of the commissures within the graft has a more important impact on early failure rates than the choice of graft size.
Related Links	http://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-2007-965382.pdf
Ending Page	354
Page Count	4
Starting Page	351
ISSN	01716425
e-ISSN	14391902
DOI	10.1055/s-2007-965382
Journal	The Thoracic and Cardiovascular Surgeon
Issue Number	6
Volume Number	55
Language	English
Publisher	Georg Thieme Verlag KG
Publisher Date	2007-08-24
Access Restriction	Open
Subject Keyword	Journal: The Thoracic and Cardiovascular Surgeon Aortic Disease Heart Valve Surgery Valve‐sparing Operation
Content Type	Text
Resource Type	Article
Subject	Pulmonary and Respiratory Medicine Surgery Cardiology and Cardiovascular Medicine

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