von Willebrand factor and soluble thrombomodulin as predictors of adverse events among subjects with peripheral or coronary atherosclerosis

Increased levels of the endothelial markers von Willebrand factor and solub le thrombomodulin have been identified as predictors of the development of adverse cardiovascular events. The purpose of this study was to determine w hich of these markers is the best predictor of such events. Both markers we re measured using enzyme-linked immunosorbent assays in 111 subjects at hig h risk of cardiovascular disease (50 with peripheral atherosclerosis and 66 who had suffered myocardial infarction). After a mean of 46 months, a foll ow-up investigation was performed and cardiovascular end-points (myocardial infarction, stroke, measured progression of peripheral atherosclerosis, ar terial surgery, etc.) were noted. Multivariate analysis revealed that both markers were independent predictors among the 54 subjects who suffered any one of the cardiovascular end-points (P < 0.01). However, only an increased level of von Willebrand factor predicted the outcome among the 39 subjects who suffered a myocardial infarction, stroke or arterial surgery (P < 0.05 ). We conclude that von Willebrand factor is a marginally better predictor of cardiovascular events than soluble thrombomodulin. Blood Coag Fibrinol 1 0:375-380 (C) 1999 Lippincott Williams & Wilkins.