期刊
ATHEROSCLEROSIS
卷 161, 期 2, 页码 261-267出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0021-9150(01)00666-9
关键词
myocardial infarction; contact phase activation; prekallikrein; high molecular weight kininogen; factor XI
Increased levels of hemostatic factors may play a role in the pathogenesis of myocardial infarction by triggering thrombin formation. We measured factor XII (FXII), factor XI (FXI), plasma prekallikrein (PK) and high-molecular-weight kininogen (HK) in 200 patients having survived myocardial infarction for at least 2 months, and in 100 healthy controls. We found significantly elevated levels of FXI clotting activity (FXI:C), HK:C and of the amidolytie activity of PK (PK:Am) among the patients as compared to the controls. Plasma levels of FXI:C, HK:C and PK:Am in the highest quartile were associated with an odds ratio of 1.9 (95% Cl: 1.0-3.8), 2.0 (95% CI: 1.0-4.0) and 5.4 (95% CI: 2.6-11.2), respectively, compared to the respective plasma levels in the lowest quartile. After correction for established clinical and laboratory risk factors, the association between PK:Am plasma levels and myocardial infarction remained significant (P = 0.0007). Combination of high PK:Am plasma levels and smoking or arterial hypertension, respectively, resulted in a more than additive relative risk for myocardial infarction. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
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