• Eur. J. Clin. Invest. · Aug 2023

    Observational Study

    Prognostic role of CRP-independent inflammatory patterns in patients undergoing primary percutaneous interventions.

    • Filippo Dossi, Mario Raccis, Guido Parodi, Alberto Ranieri De Caterina, Umberto Paradossi, Augusto Esposito, Andreina D'Agostino, Giuseppe De Luca, and Sergio Berti.
    • Department of Medicine, Cardiology Unit, Lavagna Hospital, Lavagna, Italy.
    • Eur. J. Clin. Invest. 2023 Aug 1; 53 (8): e14000e14000.

    BackgroundDespite the key pathophysiological role of inflammation in the development of coronary artery disease (CAD), the evaluation of inflammatory status has not been clearly established in patients presenting with acute coronary syndrome (ACS). The aim of this study is to evaluate the prevalence of CRP-independent inflammatory patterns in patients referred for primary percutaneous coronary intervention (pPCI) and to determine their one-year relationship with adverse clinical outcomes.MethodsWe carried out a single-centre, observational study consecutively enrolling all patients presenting at a large-volume PCI hub with a diagnosis of ST-segment elevation myocardial infarction (STEMI) and treated with pPCI. Systemic immune-inflammatory index (SII) was calculated at admission and discharge. According to different SII trajectories patients were divided into four patterns: 'persistent-low', 'down-sloping', 'up-sloping' and 'persistent-high' patterns. The primary endpoint was a composite of all-cause of death and myocardial infarction (MI) at a one-year follow-up.ResultsAmong the total 2353 subjects enrolled, 44% of them belonged to 'persistent-low', 31% to 'down-sloping', 4% to 'up-sloping' and 21% to 'persistent-high' pattern. The primary endpoint was observed in 8% of patients with a 'persistent-low', 12% with a 'down-sloping', 27% with an 'up-sloping' and 25% with a persistent-high pattern (p = 0.001). After multivariate analysis, 'up-sloping' (OR: 3.2 [1.59-3.93]; p = 0.001) and 'persistent-high' (OR: 4.1 [3.03-4.65]; p = 0.001) patterns emerged as independent predictors of one-year adverse events.Conclusions'Persistent-high' and 'up-sloping' CRP-independent inflammatory patterns in patients undergoing primary PCI are associated with an increased risk of adverse events at one-year follow-up. The prognostic value of these inflammatory patterns might be helpful to individualize potential therapeutic targets.© 2023 Stichting European Society for Clinical Investigation Journal Foundation. Published by John Wiley & Sons Ltd.

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