A new aortic root prosthesis with compliant sinuses for valve sparing operations

Author

Thubrikar, Mano J. ; Gong, Geoffrey G. ; Selim, Gamal A. ; Fowler, M. Brett ; Robiscek, F.

Author_Institution

Heineman Med. Res. Lab., Carolinas Med. Center, Charlotte, NC, USA

Volume

1

fYear

1999

fDate

1999

Abstract

We designed a new aortic root prosthesis, using the existing dacron tube graft material, which has compliant sinuses similar to those in the natural aortic root. The prosthesis was used to replace the aorta and the sinuses in the valve sparing operation in 4 human and 7 porcine aortic roots. The dynamics of the aortic graft root and the leaflets were studied in a left heart simulator. Both, the movement of the leaflets and of the commissures during a cardiac cycle was similar to that in the natural aortic root. Hence, the new prosthesis offers the most natural conditions to the functioning aortic leaflets and thus is expected to enhance longevity of the leaflets in the valve sparing operation

Keywords

biomechanics; cardiology; prosthetics; aortic root prosthesis; cardiac cycle; compliant sinuses; dacron tube graft material; human aortic roots; left heart simulator; porcine aortic roots; root dynamics; valve sparing operations; Fabrics; Heart; Humans; Laboratories; Orifices; Prosthetics; Shape; Surgery; Testing; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802221

Filename

802221