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 these adverse events.Although the root cause of the event could not be confirmed, the cause of the worsening pvl 6 months post valve implant and the heart failure were not able to be determined.Investigation results suggest/indicate in addition to patient factors, the mechanisms listed above may have contributed to the worsening pvl.The pvl and severe tricuspid valve regurgitation may have contributed to the reported heart failure.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 our affiliate in (b)(6) and through the implant patient registry (ipr), approximately 6 months post deployment of a 23mm sapien 3 valve in the aortic position, the patient was hospitalized for heart failure.An increase in paravalvular leak (pvl) and severe tricuspid regurgitation (tr) were observed.The decision was made to have surgery again for avr.Approximately 8 months post valve implant, the sapien 3 valve was extracted/explanted and a surgical aortic valve was implanted.A surgical tricuspid valve was also implanted during the same surgery.No infectious endocarditis (ie) was reported.
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