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As reported by a field clinical specialist (fcs), approximately 6 years and 10 months post tpvr with a 23mm sapien xt in non-edwards surgical valve, the sapien xt failed due to regurgitation and stenosis.Used a non-edwards balloon to fracture original surgical valve and implanted a 26mm sapien 3 ultra valve in pulmonic position using the commander ds.Gradient of 7mmhg, patient is stable.Per the fcs, the patient had trouble breathing prior to the viv procedure.The gradient prior to the viv was 35-55mmhg and there was leaflet calcification.
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Per the instructions for use (ifu), structural valve deterioration (wear, fracture, calcification, leaflet tear/tearing from the stent posts, leaflet retraction, suture line disruption of components of a prosthetic valve, thickening, stenosis), is a potential adverse event associated with bioprosthetic heart valves.Per a technical summary written by edwards lifesciences, calcific degeneration is a common cause of bioprosthetic heart valve failures.Many factors contribute to the onset and propagation of calcification.These include patient factors (age, disease state, pharmacological intervention, etc.), mechanical stress related to the valve's hemodynamic performance, and glutaraldehyde fixation of tissue.Of these, the fixation process is a relatively minor contributor to calcification for edwards' tissue valves due to subsequent anti-calcification treatments during manufacturing.Though numerous studies have been conducted on preventive calcification strategies in bioprosthetic heart valves, the causes of calcification are not fully understood and there are still no mechanisms or medical therapies which fully prevent bioprosthesis from calcifying.In this case, there was no allegation or indication a product malfunction contributed to this adverse event.Investigation results suggest/indicate a definitive root cause could not be determined due to limited information provided.A review of edwards lifesciences risk management documentation was performed for this case.The reported event is an anticipated risk of the transcatheter heart valve procedure, additional assessment of this adverse event is not required 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.As such, neither a product risk assessment, nor corrective or preventative actions are required at this time.
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Per clinical review of medical records, approximately 6 years and 10 months post tavr the patient presented with fatigue and progressive pulmonary stenosis and shortness of breath.Patient's echo shows mean gradient across the pulmonary valve of 35.9mmhg and trivial insufficiency.Under anesthesia, the patient had a 26mm sapien s3 in the pulmonic position via right femoral vein approach.The implant was a success.
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