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  • Title: [The significance of admission hs-CRP in patients undergoing primary percutaneous intervention for acute myocardial infarction].
    Author: Cağli KE, Topaloğlu S, Aras D, Günel EN, Ozlü MF, Uygur B, Baysal E, Sen N.
    Journal: Turk Kardiyol Dern Ars; 2009 Jan; 37(1):19-25. PubMed ID: 19225249.
    Abstract:
    OBJECTIVES: We evaluated the role of admission high-sensitivity C-reactive protein (hs-CRP) level in estimating myocardial perfusion and in-hospital adverse events in patients with acute ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI). STUDY DESIGN: The study included 43 consecutive patients (34 males, 9 females; mean age 59+/-11 years) who underwent PCI for STEMI within six hours after the onset of symptoms. Coronary angiograms were evaluated with respect to TIMI flow grade, corrected TIMI frame count, and myocardial blush grade (MBG). Electrocardiograms obtained 90 min after PCI were analyzed for ST-segment resolution. In-hospital adverse events were recorded. hs-CRP level was measured by immunonephelometry in blood obtained immediately before PCI. RESULTS: The mean hs-CRP level was 1.35+/-1.17 mg/dl. Based on the median hs-CRP value (0.98 mg/dl), 22 patients with a low hs-CRP level had a lower frequency of hypertension (p=0.047), decreased TIMI frame counts of the left anterior descending (p=0.010) and circumflex (p=0.033) arteries, a higher rate of ST resolution (p=0.000), improved MBG (p=0.015), and shorter hospitalization (p=0.028). Adverse events occurred in six patients (14%), in five of whom (5/21) the hs-CRP level was above 0.98 mg/dl. hs-CRP was significantly correlated with corrected TIMI frame counts of the left anterior descending (r=0.388, p=0.01) and circumflex arteries (r=0.336, p=0.027), length of hospitalization (r=0.357, p=0.019), and inversely correlated with MBG (r=-0.415, p=0.006). In multivariate regression analysis, hs-CRP was found to be an independent predictor of ST resolution (p=0.008). ROC analysis showed that a higher level of hs-CRP than 0.88 mg/dl predicted poor MBG with 73% sensitivity and 31% specificity (95% CI 0.577-0.899, p=0.01). CONCLUSION: In STEMI patients undergoing primary PCI, high levels of admission hs-CRP are associated with poor myocardial perfusion and longer hospitalization.
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