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Treatment of Femoropopliteal Artery Disease with Polymer-Coated Drug-Eluting Stent: 5-Year Results of a Prospective, Non-Randomized Study Including the Halo Phenomenon

CardioVascular and Interventional Radiology, ISSN: 1432-086X, Vol: 47, Issue: 2, Page: 177-185
2024
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Purpose: To investigate the long-term results of the Eluvia drug-eluting stent (DES) implantation for femoropopliteal arterial disease, including the ‘halo’ phenomenon. Long-term data of DES is scarce. A focal reaction (‘halo’) following Eluvia DES deployment has been described. However, the long-term clinical impact of this phenomenon remains unclear. Methods: This prospective, non-randomized, single-arm study included 130 consecutive patients treated with an Eluvia DES for symptomatic femoropopliteal disease between March 2016 and December 2018. Clinical outcomes and imaging were assessed after 6 months and annually thereafter for up to 5 years. The primary outcome measure was primary patency. Secondary outcomes were freedom from clinically driven target lesion revascularization (CD-TLR), freedom from major amputation, overall survival and amputation-free survival rates. Results: The primary patency was 65% at 5 years. The freedom from CD-TLR and from major amputation at 5 years was 79 and 96%, respectively. The overall survival and amputation-free survival rates were 88 and 83% at 60 months, respectively. Out of the 27 patients with a halo sign, two showed an increased (7.4%) and 6 (22.2%) a decreased diameter. In 19 cases (70.4%), the diameter remained unchanged at the latest follow-up. The presence of the ‘halo’ sign was associated with increased primary patency (87% versus 59%, HR: 2.48, 95%CI 1.19–5.16, P =.015). Conclusions: The presented patient cohort treated with the Eluvia DES for femoropopliteal artery lesions indicates durable efficacy and a good safety profile regardless of the halo phenomenon. The results need to be confirmed in a larger patient cohort. Level of Evidence III: Non-randomized controlled cohort/follow-up study. Graphical Abstract: (Figure presented.)

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