The event reported is an 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 returned device was visually examined for any abnormalities and the following was observed.Crimped valve: two (2) struts bent at the inflow side.Expanded valve: frame distorted/canted.Leaflets wrinkled and dehydrated due to storage condition (prolonged crimping) during the return handling process.Per the technical summary, the ifu, current risk mitigations include design and manufacturing controls, and training manuals have been reviewed, no inadequacies have been identified with regards to warnings, contraindications, and the directions/conditions for the successful use of the device.In this case, the complaint of valve frame damage was confirmed based on evaluation of returned device and provided imagery.Available information suggests patient factors (calcification, tortuosity) and procedural factors (excessive device manipulation) likely contributed to the event as per 3mensio, calcification and tortuosity were present at the access vessel.Calcification can reduce the vessel lumen diameter and may increase restriction leading to resistance.Calcification can also result in the creation of sub-optimal angles during delivery system insertion that may lead to resistance.Tortuous patient anatomy can create sub-optimal angles that can lead to non-coaxial alignment between the delivery system with crimped valve and sheath inner lumen.Excessive device manipulation or high push force can lead to the valve struts interacting with the sheath shaft and result in the strut damage at the valve inflow side.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.Since no edwards product defects or labeling deficiencies were identified, no corrective or preventative action is required.
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