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A novel noble metal stent coating reduces in vitro platelet activation and acute in vivo thrombosis formation: a blinded study
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Micro and Nanosystems. Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 77, Stockholm, Sweden, Tomtebodavägen 18A; MedTechLabs, Stockholm, Sweden.ORCID iD: 0000-0003-1235-9099
Bactiguard AB, Alfred Nobels allé 150, 146 48, Tullinge, Sweden, Alfred Nobels allé 150.
Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 77, Stockholm, Sweden, Tomtebodavägen 18A.
Bactiguard AB, Alfred Nobels allé 150, 146 48, Tullinge, Sweden, Alfred Nobels allé 150.
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2023 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 13, no 1, article id 17225Article in journal (Refereed) Published
Abstract [en]

Inherent to any stenting procedure is the prescription of dual antiplatelet therapy (DAPT) to reduce the platelet response. Clinical guidelines recommend 6–12 months of DAPT, depending on stent type, clinical picture and patient factors. Our hypothesis is that a nanostructured noble metal coating has the potential to reduce protein deposition and platelet activation. These effects would reduce subsequent thrombo-inflammatory reactions, potentially mitigating the need for an extensive DAPT in the acute phase. Here, a noble metal nanostructure coating on stents is investigated. Twelve pigs underwent endovascular implantation of coated and non-coated stents for paired comparisons in a blinded study design. The non-coated control stent was placed at the contralateral corresponding artery. Volumetric analysis of angiographic data, performed by a treatment blinded assessor, demonstrated a significant thrombus reduction for one of the coatings compared to control. This effect was already seen one hour after implantation. This finding was supported by in vitro data showing a significant reduction of coagulation activation in the coated group. This novel coating shows promise as an implant material addition and could potentially decrease the need for DAPT in the early phases of stent implementation.

Place, publisher, year, edition, pages
Springer Nature , 2023. Vol. 13, no 1, article id 17225
National Category
Cardiology and Cardiovascular Disease
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URN: urn:nbn:se:kth:diva-338883DOI: 10.1038/s41598-023-44364-4ISI: 001116585900067PubMedID: 37821529Scopus ID: 2-s2.0-85173667879OAI: oai:DiVA.org:kth-338883DiVA, id: diva2:1808390
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Not duplicate with DiVA 1786310

QC 20231031

Available from: 2023-10-31 Created: 2023-10-31 Last updated: 2025-02-10Bibliographically approved

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Sandell, Mikael

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