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As reported by an edwards lifesciences field clinical specialist, approximately 4 years and 8 months post implantation of a 20mm sapien 3 valve in the pulmonic position, a valve in valve with a 20mm sapien 3 ultra resilia valve was successfully performed due to regurgitation and stenosis.Patient symptoms were not provided.
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A supplemental mdr is being submitted due to medical record received.Sections: a2, b5, g3, g6, h2, h6 device code have been updated.
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According to the medical record approximately four years post implant a cta scan noted bioprosthetic valve in the rv-pa conduit, moderate leaflet calcifications with mildly restricted leaflet excursion of the pulmonic valve suggesting valvular stenosis without thrombosis.A tte performed approximately 4 years and seven months post implant noted trace transvalvular regurgitation, pv mean of 12.0mmhg and a peak of 22.0mmhg.The exam also noted that these values likely underestimate the severity of the right ventricular outflow tract/bioprosthetic valve obstruction due to poor angle on insonation and limited spatial resolution.Approximately 4 years and 8 months post implantation of a 20mm sapien 3 valve in the pulmonic position, a valve in valve with a 20mm sapien 3 ultra resilia valve was successfully performed due to regurgitation and stenosis.The valve was placed without difficulty and post dilated.
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A supplemental mdr is being submitted due to engineering evaluation findings.Sections: g3, g6, h2, h6 type of investigation, investigation findings, investigation conclusions have been updated.The event reported is anticipated in the risk management documentation for transcatheter heart valve procedures.A previous investigation into this type of event is captured in an edwards lifesciences technical summary and applies to this complaint.Additional assessment of the failure mode is not required at this time.The device was not returned for evaluation.Due to the unavailability of the complaint device, engineering was unable to perform any visual inspection, functional testing, or dimensional analysis.Per the technical summary, the instructions for use (ifu), training manuals and current risk mitigations have been reviewed.No inadequacies have been identified with regards to warnings, contraindications, and the directions/conditions for the successful use of the device.Through extensive complaint investigations, structural valve degeneration related to calcification for the sapien xt, s3, and s3u valves have not been associated with device malfunctions or manufacturing nonconformances.Rather, the root cause for these events have historically been due to patient factors (age, disease state, patient co-morbidities, and/or pharmacological intervention).The reported calcification was confirmed based on medical record provided.The process of calcification involves the reaction of calcium containing extracellular fluid with membrane associated phosphorus, causing calcification of the cells.Many patient related factors can contribute to the onset and propagation of calcification, and consequently, structural degeneration of the thv.These factors include age, disease state, patient co-morbidities, and/or pharmacological intervention.It is possible that one or more of these factors may have been present; however, due to limited information provided, a definitive root cause is unable to be determined at this time.Complaint histories for all reported events are reviewed against trending control limits monthly, and any excursions above the control limits are assessed and documented as part of this monthly review.
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