• Dtsch Arztebl Int · May 2020

    Review

    Coronary Stent Thrombosis- Predictors and Prevention.

    • Helen Ullrich, Thomas Münzel, and Tommaso Gori.
    • Cardiology Center, Cardiology I, Universitiy Medical Center, Johannes Gutenberg University Mainz,German Center of Cardiovascular Research (Deutsches Zentrum für Herz-Kreislauf-Forschung,DZHK), Rhine-Main.
    • Dtsch Arztebl Int. 2020 May 1; 117 (18): 320326320-326.

    BackgroundStent thrombosis (ST) is a dreaded complication after stent implantation and is associated with a mortality between 5% and 45%. The mechanisms by which ST arises are complex. Because of the seriousness of this situation, all phy - sicians should have at least basic knowledge of it. In this article, we present the risk factors for ST and discuss some innovative approaches to its treatment.MethodsThis review is based on pertinent articles retrieved by a selective search in PubMed, and on current international guidelines and expert recommendations.ResultsThe frequency of ST has been markedly lowered by technical advances in coronary stenting and by the implementation of modern implantation techniques, including the introduction of coverage with dual antiplatelet therapy (DAPT). Both patient-related risk factors and procedural aspects can elevate the risk of ST. The independent risk factors for ST include premature termination of DAPT (hazard ratio [HR] 26.8; 95% confidence interval [8.4; 85.4]; p <0.0001), malignant disease (odds ratio [OR]: 17.45; [4.67; 65.26]; p <0.0001), and diabetes mellitus (OR: 3.14; [1.33; 7.45]; p = 0.0093). In comparison to angiographically guided procedures, the use of intracoronary imaging techniques in patients with acute coronary syndrome lowers the frequency of ST (0.6% versus 1.2%; p = 0.005). These techniques enable the detection of many findings in the coronary arteries that are associated with the development of ST. In such cases, countermeasures such as secondary stent dilatation or prolongation of DAPT can help prevent ST.ConclusionAs the pathophysiology of ST is multifactorial, research in this area presents a special challenge. Prospective clinical trials will be needed to determine whether the systematic use of imaging techniques can lower the frequency of ST.

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