The patient was enrolled in (b)(6) study.It was reported that in-stent restenosis occurred.On (b)(6) 2016, the index procedure was performed.The target lesion was located in the right distal superficial femoral artery (sfa) extending to the proximal popliteal artery.The target lesion was 80% stenosed and was 40mm long with a proximal reference vessel diameter of 6.00mm and a distal vessel diameter of 6.00mm, and was classified as a tasc ii a lesion.The target lesion was treated with pre-dilatation and a 7mm x 60mm eluvia stent was placed.The lesion was then post-dilated and residual stenosis was 0%.On (b)(6) 2018, the patient experienced sudden onset of right calf discomfort.On (b)(6) 2018, the patient presented to the hospital, stating the symptoms occurred while walking short distances indoors, and was relieved by rest.An ultrasound was performed which revealed in-stent restenosis (isr) of the eluvia stent.On (b)(6) 2018, the patient presented to the hospital again for intervention.Angiography confirmed the in-stent restenosis, showing that the distal sfa was 100% stenosed and the proximal popliteal artery had 100% isr.The isr was treated using laser atherectomy and balloon angioplasty with two non-bsc balloons.The lesion in the distal sfa was further treated by implantation of a non-bsc drug coated stent.The proximal right sfa was treated with drug coated balloon angioplasty.Post procedure, the angiographic results were excellent.
|