Per the instructions for use (ifu), paravalvular leak (pvl) is a potential adverse event associated with bioprosthetic heart valves.Paravalvular leak refers to blood flowing through a channel between the structure of the implanted valve and the cardiac tissue, as a result of a lack of appropriate sealing of the valve to the target site.Some pvl is not uncommon post deployment.Many cases are mild to moderate, and either resolve over time or do not cause symptoms.Others may be more clinically significant and require intervention.The mechanism behind worsening or late pvl is not well understood but may be related to cardiac remodeling.In this case, there was no allegation or indication a product deficiency contributed to this adverse event.Per medical opinion, the event was due to procedural factors (patient prosthetic mismatch and ¿incorrect initial sizing.¿) complaint histories for all reported events are reviewed against trending control limits on a monthly basis, and any excursions above the control limits are assessed and documented as part of this monthly review.No corrective or preventative actions are required.
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As reported by an edwards lifesciences affiliate in (b)(6), a 23 mm sapien 3 ultra valve was implanted in the aortic position via transfemoral approach.Post implant mild paravalvular leak (pvl) was observed.Two months post implant the pvl degree had worsened to severe, therefore a 26 mm sapien 3 ultra valve was implanted valve in valve into the 23 mm sapien 3 ultra valve.Post valve in valve procedure the pvl resolved to trace levels and the patient was doing well.Per medical opinion, the event was perivalvular leak due to patient prosthetic mismatch and ¿incorrect initial sizing.¿.
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