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C-reactive Protein is a Predictor of Mortality in ST-segment Elevation Acute Myocardial Infarction

  • Milano, Sibele Sauzem
  • Moura Júnior, Orlando Victorino de
  • Bordin, Arthur Augusto Souza
  • Marques, Gustavo Lenci
Publication Date
Apr 01, 2019
Scientific Electronic Library Online - Brazil
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Abstract Background: Inflammation is a major component of the response to tissue injury caused by myocardial infarction. High-sensitivity C-reactive protein (hs-CRP) levels might be a simple marker of the severity of this inflammatory response, providing prognostic information. Objective: To associate hs-CRP level on admission and other clinical characteristics with in-hospital mortality of patients with acute ST-segment elevation myocardial infarction (STEMI). Methods: A retrospective cohort study of patients admitted with STEMI was carried out. Patients were analyzed regarding clinical characteristics, reperfusion therapy, hs-CRP on admission and outcomes. Continuous variables were analyzed by non-parametric Mann-Whitney U test and categorical variables by chi-square test. A p value of < 0.05 was considered statistically significant. Results: Of the 118 patients analyzed, 20 died during hospitalization. Higher levels of hs-CRP (p = 0.001) and older ages (p = 0.003) were observed among those patients who died. Logistic regression showed that a one unit increase in hs-CRP increased the risk of death by 15% (p = 0.0017), after adjustment for established risk factors. Similarly, each one-year increase in age increases the risk of death by 6.6% (p = 0.003). Conclusion: Our results demonstrate a strong association between hs-CRP obtained on admission and in-hospital mortality after STEMI. It suggests that hs-CRP can be a marker of inflammatory response to myocardial ischemia, providing prognostic information regarding the risk of death.

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