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  • Title: Statin therapy improves cardiovascular outcome of patients with peripheral artery disease.
    Author: Schillinger M, Exner M, Mlekusch W, Amighi J, Sabeti S, Muellner M, Rumpold H, Wagner O, Minar E.
    Journal: Eur Heart J; 2004 May; 25(9):742-8. PubMed ID: 15120884.
    Abstract:
    AIMS: We sought to examine the interrelationship between statin use, inflammation, and outcome of high-risk patients with advanced atherosclerosis. METHODS AND RESULTS: We prospectively studied 515 patients with severe peripheral artery disease (median age 70 years, 296 males). The cardiovascular risk profile and laboratory parameters of inflammation (high-sensitivity C-reactive protein [hs-CRP], serum amyloid A [SAA], fibrinogen, serum albumin, neutrophil counts) were obtained, and patients were followed for a median of 21 months (interquartile range 12-25) for the occurrence of myocardial infarction (MI) and death. We observed 19 MIs (5 fatal and 14 nonfatal) and 65 deaths. Cumulative survival and event-free survival rates (freedom from death and MI) at 6, 12, and 24 months were 97%, 95%, and 89%, and 96%, 93% and 87%, respectively. Patients receiving statin therapy (n=269, 52%) had a lower level of inflammation (hs-CRP p<0.001, SAA p=0.001, fibrinogen p=0.007, albumin p<0.001, neutrophils p=0.049) and better survival (adjusted hazard ratio [HR] 0.52, p=0.022) and event-free survival rates (adjusted HR 0.48, p=0.004) than patients not treated with statins. However, patients with low inflammatory activity (hs-CRP < or =0.42 mg/dl) had no significant benefit from statin therapy (p=0.74 for survival; p=0.83 for event-free survival), whereas in patients with high hs-CRP (>0.42 mg/dl) statin therapy was associated with a significantly reduced risk for mortality (adjusted HR 0.58, p=0.046) and the composite of myocardial infarction and death (adjusted HR 0.46, p=0.016). CONCLUSION: Statin therapy is associated with a substantially improved intermediate-term survival of patients with severe peripheral artery disease and a high inflammatory activity, whereas in patients with low hs-CRP no survival benefit was observed.
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