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Expanding valve-in-valve procedures warrants caution in selection; leaves open need for prospective durability data.
Structural valve deterioration is responsible for significant morbidity and mortality after valve replacement. This multifactorial pathology is the main cause of valve re-intervention during follow-up. Although redo surgery is still the most frequently used intervention to treat valve structural failure, the transcatheter valve-in-valve procedure is rapidly expanding.
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Côté et al. (2017) studied this question.
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