Why the study?
Does the SAPIEN 3 transcatheter heart valve improve stent-frame expansion morphology and reduce paravalvular regurgitation compared to the SAPIEN XT?
Does the SAPIEN 3 transcatheter heart valve improve stent-frame expansion morphology and reduce paravalvular regurgitation compared to the SAPIEN XT?
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The flared inflow morphology of the newer-generation SAPIEN 3 valve compared to the SAPIEN XT may explain its association with reduced paravalvular regurgitation post-TAVI.
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Kazuno et al. (2016) studied this question.
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