As reported, the patient was implanted with a smart control stent in the target lesion without issue.The patient was a (b)(6)-old male and the original target lesion was the proximal portion of the left femoral artery.The patient¿s vessel level of tortuosity and calcification was unknown.The rate of stenosis was unknown.Approximately three years and 6 months after the index procedure, a restenosis in the lower leg was confirmed via echography.A month after, a revascularization was performed in the target lesion and the patient recovered.Additional procedural details were requested but are unknown.
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After further review of additional information received the sections have been updated accordingly.As reported, the patient was implanted with a smart control stent in the target lesion without issue.The patient was a (b)(6) male and the original target lesion was the proximal portion of the left femoral artery.The patient¿s vessel level of tortuosity and calcification was unknown.The rate of stenosis was unknown.Approximately three years and 6 months after the index procedure, a restenosis in the lower leg was confirmed via echography.A month after, a revascularization was performed in the target lesion and the patient recovered.Additional procedural details were requested but are unknown.The device was not returned for evaluation as it remains implanted.A review of the manufacturing documentation associated with lot 15642766 presented no issues during the manufacturing process that can be related to the reported event.Without the return of the device for analysis or procedural films, the reported event could not be confirmed and the exact cause could not be determined.Restenosis is a known potential adverse event associated with implanting stents.Restenosis is often associated with the progression of artery disease.The act of stent implantation produces intended damage to the intima of the vessel wall in order to remodel the wall and reestablish patency of the vessel.The disruption of the intimal layers triggers the immune system to heal the damaged areas, thus activating the clotting mechanism as well as the inflammatory response.The combination of inflammatory response and clotting cascade can lead to thrombus formation in side of the stent and instigate vessel remodeling around the stent, producing gaps between the stent and the vessel wall.Given the limited information available for review, patient, lesion and/or pharmacological factors may have contributed to the reported event.There is nothing to suggest that the reported event is related to the design and manufacturing process of the device.Therefore no corrective action will be taken.
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