(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).There was no reported device malfunction and the product was not returned.The investigation was unable to determine a definitive cause for the patient effect.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot.The reported patient effects of headache and death, as listed in the xience alpine everolimus eluting coronary stent system electronic instructions for use, are known patient effects that may be associated with use of a coronary stent in native coronary arteries.Although a conclusive cause for the reported patient effects and the relationship to the product, if any, cannot be determined, there is no indication of a product quality issue with respect to manufacturing, design or labeling.
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