Abstract
The heterogeneity in the degree of collateralization among patients with coronary artery disease (CAD) is poorly understood. We sought to determine whether chronic subclinical inflammation is related to coronary collateral development in patients with chronic stable angina pectoris and obstructive CAD. High-sensitivity C-reactive protein (CRP) levels were measured in 177 patients with stable angina pectoris before coronary angiography. Multivariable logistic regression revealed an inverse graded association between CRP and the presence of coronary collaterals (Rentrop grade 1 to 3). Compared with patients in the first CRP tertile, the adjusted odds ratio for the presence of coronary collaterals was 0.70 (95% confidence interval, 0.33 to 1.52; p = 0.45) for patients in the second CRP tertile and 0.33 (95% confidence interval, 0.15 to 0.75; p = 0.008) for patients in the third CRP tertile (p for trend = 0.008). In conclusion, an inverse graded association exists between CRP and the presence of coronary collaterals in patients with stable angina pectoris.
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