Influence of design and fixation pressure on fibrous sheathing in right-sided porcine aortic bioprostheses.
Valve dysfunction in right side implanted bioprostheses can be caused by fibrous sheathing and cusp retraction. A scoring system was employed to grade the macroscopic appearance of the cusp retraction. Stentless porcine aortic valves exhibit less cusp retraction when implanted in right-sided position than stented porcine aortic valves.
Ozaki
S
S
Department of Cardiac Surgery, Katholieke Universiteit Leuven, Leuven, Belgium.
Herijgers
P
P
Verbeken
E
E
Meuris
B
B
Ypermann
J
J
Flameng
W
W
D000818:Animals; D001021:Aortic Valve / Q000473:pathology* / Q000601:surgery; D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000379:methods; D023421:Models, Animal; D011312:Pressure; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012756:Sheep; D013997:Time Factors