As reported, the patient was enrolled in a clinical study (b)(6) for (b)(6) and the case number is (b)(6).Nineteen months post stenting of a smart stent to an unknown lesion ((b)(6) 2015), the patient suffered intermittent claudication of inferior limb.The abi, arteriography and target vessel revascularization was performed on (b)(6) 2015.The patient recovered.The smart stent was placed in (b)(6) 2013 without any issues.At the index procedure, the rate of stenosis was 90%.
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Complaint conclusion: as reported, the patient was enrolled in a clinical study (b)(4) and the case number is (b)(6).Nineteen months post stenting of a smart stent to an unknown lesion ((b)(6) 2015), the patient suffered intermittent claudication of inferior limb.The abi, arteriography and target vessel revascularization was performed on (b)(6) 2015.The patient recovered.The smart stent was placed in (b)(6) 2013 without any issues.At the index procedure, the rate of stenosis was 90%.The patient¿s medical history is unknown.No additional information is available.The product remains implanted in the patient and thus is not available for evaluation.A device history record review was performed and showed that these lots of products met all requirements per the applicable manufacturing quality plan.In-stent restenosis is a well-known potential complication for this type of procedural and it listed in the ifu.In the literature, in-stent stenosis rates from 11% to 39% from 6 to 12 months after the stent placement.Rates are higher in older patient with more severe atherosclerosis and depended on the type of stenosis treated.Stenosis in stents are usually treated with intrastent pta or placement of a second stent.Progression of atherosclerotic disease is known to cause instent restenosis and does not indicate a device failure.Intra-arterial stent placement is a treatment of the disease process and it is not a preventive or cure for the progression of symptoms of atherosclerotic artery disease.There is no evidence of manufacturing issues that may have contributed to the reported event therefore; no corrective action is required at this time.
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