A visual and dimensional inspection was performed on the returned device.The reported difficult to advance and failure to advance could not be tested as it was based on operational context.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history of the reported lot did not indicate a lot specific quality issue.The investigation determined the reported difficulties and subsequent treatment appear to be related to the operational context of the procedure.Additionally, a conclusive cause for the reported patient effect(s), and the relationship to the product, if any, cannot be determined.In this case, it is likely that the stent delivery system interacted with the patient¿s heavily calcified, mildly tortuous, and 90% stenosed lesion during advancement, as resistance was noted, resulting in the reported difficult to advance and subsequent failure to advance.Manipulation of the device during its interaction with the anatomy likely resulted in the flared stent and wrinkled balloon noted during return analysis.There is no indication of a product quality issue with respect to manufacture, design, or labeling of the device.
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It was reported that the procedure was to treat a heavily calcified, mildly tortuous, de novo left anterior descending artery that was 90% stenosed.A 2.25x23mm xience alpine failed to cross due to anatomy and another unspecified device.A non-abbott device was used to successfully complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.Device analysis noted that there was biological material noted at the flared struts.No additional information was provided.
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