The device was not returned for evaluation.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.A conclusive cause for the reported patient effects, and the relationship to the product, if any, cannot be determined.However, the treatment(s) appears to be related to the operational context of the procedure.The reported patient effects of vessel thrombosis and cerebral hemorrhage (cerebrovascular accident) are listed in the xact carotid stent system information for prescribers as adverse events potentially associated with carotid stents and embolic protection systems.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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