In recent years, several studies have used the measurement of carotid intima-media thickness (IMT) as a marker of early atherosclerosis: IMT has been shown to correlate significantly with the presence of coronary artery disease (CAD) and to predict fatal and not fatal cerebro-and cardio-vascular events. These findings highlight the importance of recognizing and managing early stages of atherosclerosis for effective cardiovascular prevention. Beyond traditional established cardiovascular risk factors, inflammation has been shown to be crucial throughout atherosclerosis from endothelial dysfunction to plaque rupture and thrombosis. Several studies have shown the existence of a strong relation between CAD and fibrinogen or highly sensitive C-reactive protein (hs-CRP) levels and their predictive role has been examined through stratification or multivariable statistical analyses: levels of these markers of inflammation have been independently associated with the incidence of coronary events after adjusting for traditional cardiovascular risk factors. Recent studies have further addressed the importance of therapeutical modulation of hs-CRP levels in high-risk patients for the prevention of vascular events. The strong relationship between hs-CRP and IMT may potentially account for the complex role of hs-CRP and IMT in the pathogenesis of cardiovascular events. However, beyond the utility of measuring markers of inflammation to assess patients with subclinical carotid atherosclerosis at higher risk of vascular events, further studies are needed to evaluate the therapeutic implications in this category of patients.
The aim of this study was to evaluate different durations of treatment in patients with calf venous thrombosis (CVT) involving 1 or more deep veins. The authors studied 2 groups of patients with postsurgical CVT diagnosed by echo-color Doppler. The first group consisted of 68 patients with CVT involving a single vein, and the second group consisted of 124 patients with CVT involving 2 or more veins. Immediately after diagnosis, all patients were treated with nadroparin calcium and sodium warfarin. Heparin treatment was withdrawn after 5-6 days of treatment, when the international normalized ratio (INR) was stabilized between 2 and 3. Each group was divided into 2 subgroups receiving anticoagulation treatment for 6 or 12 weeks, respectively. The endpoint was proximal extension of the thrombotic lesion, defined as the extension of the thrombus to the popliteal and/or femoral vein. In patients with single-vessel CVT there was no significant difference between the 2 subgroups, whereas in patients with CVT involving 2 or more vessels, a statistically significant difference was observed, the number of cases showing proximal extension of the thrombus being higher among patients treated for 6 weeks. Twelve weeks of anticoagulation treatment is better than 6 weeks only in patients with postsurgical CVT involving 2 or more veins.
Noncompaction of the left ventricular myocardium, by itself, does not seem to be a risk factor for stroke or embolic results, so there is no indication for oral anticoagulant therapy.
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