(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The device was not returned for analysis.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history identified no similar incidents from this lot.It should be noted that the reported patient effects of angina, stenosis, and myocardial infarction are listed in the xience alpine, everolimus eluting coronary stent system, instructions for use as known patient effects of coronary stenting procedures.The investigation was unable to determine a conclusive cause for the reported difficulty to deploy (wall apposition); however, the subsequent treatments appear to be related to the circumstances of the procedure.A conclusive cause for the reported patient effect(s), and the relationship to the product, if any, cannot be determined.There is no indication of a product quality issue with respect to the design, manufacture or labeling of the device.
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It was reported that on (b)(6) 2018, a 3.5x18m xience alpine stent was successfully implanted in the mid right coronary artery lesion (rca).On (b)(6) 2018, the patient was hospitalized with chest pain and diaphoresis.Elevated troponin was noted and a non-st elevated myocardial infarction was diagnosed.Per imaging, stent restenosis with recoil were observed.As treatment, angioplasty was performed.The event resolved without sequela.No additional information was provided regarding this issue.
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