Eminent clinical study.It was reported there was in-stent occlusion/thrombosis.The subject was enrolled in the eminent study on (b)(6) 2020 and the index procedure was performed on the same day.Target lesion was located in the left mid to distal sfa with 100% stenosis and was 55 mm long with a proximal reference vessel diameter of 5.5 mm and distal reference vessel diameter of 5.0 mm and was classified as a tasc ii a lesion.Target lesion was treated with pre-dilatation, followed by 6 mm x 80 mm study stent was placed.Post dilatation was performed with final residual stenosis of 0%.On 23jan2020, the subject was discharged.On (b)(6) 2020, 177 days post index procedure, the subject presented with symptoms of intermittent claudication along with worsening mobility, hence sspb (short physical performance battery) test showed score 4 to 3, 6-minute walk test revealed 240 to 120 m, tinetti was 13 to16 as worsening of balance and gait were observed and a reduction in everyday activity over the past month was reported.Due to worsening of symptoms, leriche-fontaine was classified as class iii.On physical examination, weak pulses were observed in the lower limbs.Arterial color doppler ultrasound of the lower limbs revealed evidence of sub-occlusive stenosis in the middle tract and intrastent occlusion in the distal tract of the left superior femoral artery.Left posterior tibial artery diffusely atheromatous and calcified, closed and the middle-distal tract and well adapted to the distal tract.Left anterior tibial artery closed in the proximal tract and poorly adapted to the distal tract.Based on the findings, subject was diagnosed with stent thrombosis, and the subject was advised to discontinue tenormin and start fripass 50 mg for two weeks.On (b)(6) 2021, during the 12- month follow up visit, patency analysis on the left revealed occluded instent stenosis and stenosis category was determined by absolute psv (peak systolic velocity).At the time of reporting, the event was not recovered/ not resolved.
|