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 effect(s) of stroke (cerebrovascular accident) and embolism are listed in the xact carotid stent system information as adverse events potentially associated with carotid stents and embolic protection systems.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 manufacture, design or labeling.
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It was reported that the procedure was to treat the left carotid artery with heavy calcification and moderate tortuosity.The patient has a prior history of transient ischemic attack on the left side.The emboshield nav6 embolic protection system (eps) and xact carotid stent were used in the procedure without issue and the stent was post-dilated with a 5.0 viatrac balloon.Once the patient was taken to the intensive care unit (icu) it was noted that they had right sided paralysis involving the arm, leg, and face.A stroke alert was called and neurology on board.A computed tomography scan and mri were performed and an embolic stroke was diagnosed with middle cerebral artery embolism.Symptoms lasted 48 hours.The patient was unable to receive tissue plasminogen activator (tpa) due to stent placement.The patient was hospitalized due to the issue.No additional information was provided.
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