Why the study?
Does the Toronto SPV valve differ from the Freestyle valve in calcification characteristics in a juvenile sheep model?
Population
Juvenile sheep model of valve implantation inside the circulation (n = 12)
Comparison
Toronto SPV porcine stentless valve vs Freestyle porcine stentless valve
Design
Preclinical
Follow-up
3 and 6 months
Authors
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Differences in juvenile sheep should not guide valve selection; leaves open durability implications for clinical use.
Does the Toronto SPV valve differ from the Freestyle valve in calcification characteristics in a juvenile sheep model?
The Freestyle stentless valve demonstrates less cusp calcification compared to the Toronto SPV valve in a juvenile sheep model, though aortic wall calcification patterns differ.
Herijgers et al. (1999) studied this question.
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