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.The reported patient effects of thrombosis and stroke (cerebrovascular accident) are listed in the x.Act carotid stent system instructions for use (ifu) as possible adverse events associated with the use of this product.A conclusive cause for the reported patient effects, and the relationship to the product, if any, cannot be determined.However, the treatment appears to be related to the operational context of the procedure.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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It was reported that the procedure was to treat a moderately calcified, mildly tortuous lesion in the internal carotid artery.Six hours after implanting a 40x8-6 x-act stent in the carotid artery, in-stent thrombus formation was noted.The physician mechanically intervened with thrombus aspiration.The patient had a stroke and lost normal physical ability resulting in 7 days of hospitalization.There was no adverse patient sequela and no reported clinically significant delay in the procedure or therapy.No additional information was provided.
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