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Can C-reactive protein predict cardiovascular events in asymptomatic patients? Analysis based on plaque characterization
서울대병원 강남센터¹ 분당서울대병원² 서울대병원³
박효은¹ , 조구영² ,최상일² ,전은주² ,김형관³ , 김용진³ , 손대원³
Purpose We aimed to investigate predictive value of high sensitivity C-reactive protein (hsCRP) in predicting cardiovascular events in asymptomatic population. Methods A total of 4,690 patients who had coronary computed tomography (CT) angiography between 2006 and 2008 were evaluated. Cardiovascular (CV) events were defined as acute coronary syndrome, stroke or cardiovascular deaths Results The patients were followed for 920 days, during which 40 patients experienced CV events. The prognosis showed significant difference according to plaque characters (Figure 1A, p<0.001) and level of hsCRP. In patients without plaque, hsCRP did not show any predictive power. (p=0.712) Whereas patients with non-calcified plaque (NCP) showed different event-free survival according to hsCRP, patients with calcified or mixed plaque did not show significant difference (Figure 1B), when adjusted for Framingham risk score and coronary artery calcium score. From multivariate model (Table), hsCRP >2mg/L was a strong predictor of cardiovascular events in patients with presence of NCP (p=0.017, Exp(B)=3.37, 95%CI 1.24-9.13), whereas in patients without NCP, hsCRP did not have significant predictive value (p=0.106). Conclusion Elevated hsCRP is an independent predictor of adverse CV events in asymptomatic patients with NCP.

 

NCP +

NCP -

 

Exp(B)

95% CI

p-value

Exp(B)

95% CI

p-value

  hsCRP≥2mg/L

3.37

1.24-9.13

0.017

2.065

0.86-4.97

0.106

  FRS

1.02

0.95-1.10

0.643

0.996

0.93-1.07

0.913

  CACS>0

2.74

0.86-8.74

0.088

8.275

3.27-20.97

<0.001

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