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  • Title: Long-term prognostic significance of high-sensitivity C-reactive protein before and after coronary angioplasty in patients with stable angina pectoris.
    Author: Gach O, Legrand V, Biessaux Y, Chapelle JP, Vanbelle S, Pierard LA.
    Journal: Am J Cardiol; 2007 Jan 01; 99(1):31-5. PubMed ID: 17196457.
    Abstract:
    We examined whether an increase in high-sensitivity C-reactive protein (hs-CRP) after percutaneous coronary intervention (PCI) predicts long-term prognosis in patients with stable angina pectoris. hs-CRP is an inflammatory marker that predicts future cardiovascular events in healthy subjects and patients with unstable and stable coronary syndromes. Long-term evaluation of pre- and postprocedural inflammatory markers has not been widely reported. In particular, the effect of the magnitude of increase in hs-CRP after PCI in stable patients is unknown. We prospectively analyzed 89 stable patients treated by PCI for stable angina pectoris. Patients were recruited between August 1998 and May 1999, and the population was followed until August 2005 (mean follow-up 79.5 +/- 10.3 months). A major adverse cardiac event (MACE) was defined as the occurrence of cardiac death, myocardial infarction, or recurrent angina requiring repeat PCI or coronary artery bypass grafting. During the follow-up period, 36 patients presented with > or =1 MACE. In multivariate analysis, independent predictors of the occurrence of MACEs were previous myocardial infarction and a significant increase in hs-CRP after PCI (p = 0.004 and 0.003, respectively). A significant increase in hs-CRP after PCI was found to be more predictive of MACEs than hs-CRP before and after PCI. In conclusion, in stable coronary artery disease, inflammation is associated with long-term adverse events, but the magnitude of the inflammatory reaction after PCI appears more predictive than the baseline value.
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