Title: Antimineralization treatments in stentless porcine bioprostheses: an experimental study
Authors: Flameng, Willem ×
Ozaki, S
Meuris, Bart
Herijgers, Paul
Yperman, Jessa
Van Lommel, Alfons
Verbeken, Eric #
Issue Date: Jul-2001
Series Title: The Journal of heart valve disease vol:10 issue:4 pages:489-94
Abstract: BACKGROUND AND AIM OF THE STUDY: Photo-oxidation treatment of porcine stentless bioprostheses (Photofix) was compared with glutaraldehyde fixation, with either AOA (Freestyle valve) or Tween-80 (Edwards Prima Plus valve). METHODS: Six valves of each type were implanted in juvenile sheep, in the pulmonary position. Valves were explanted after three or six months and examined macroscopically, by X-radiography, and by light and transmission electron microscopy. Calcium content was determined by atomic absorption spectrometry. RESULTS: The cusps of all valves were free of calcification, and had normal histology and function. Calcium contents (median +/- IQR) were 0.63+/-0.45, 0.73+/-1.46 and 0.46+/-1.42 microg/mg for the Photofix, Freestyle and Prima Plus valves, respectively (p = NS). Calcium contents of the aortic wall portions were 0.71+/-1.27 (Photofix), 10.78+/-77.22 (Freestyle) and 28.70+/-66.53 (Prima Plus) (p <0.05 for Photofix versus Freestyle or Prima Plus). CONCLUSION: Photo-oxidation of a porcine stentless valve prevents calcification not only in the cusps, but also in the aortic wall portion.
ISSN: 0966-8519
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Experimental Cardiac Surgery
Translational Cell & Tissue Research
Clinical Cardiac Surgery
× corresponding author
# (joint) last author

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