Influence of systemic inflammation on efficiency of antiplatelet therapy in PAOD patients

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Recently it was shown that inflammation adversely influences results obtained from the platelet function analyzer system, PFA-100, hypothesizing that inflammation could confound interpretation of platelet function results. We investigated the clinical relevance of these results in patients with peripheral arterial occlusive disease (PAOD), with and without signs of systemic inflammation. In 98 PAOD patients, all treated with acetyl-salicylic acid (ASA), we obtained PFA-100 values upon stimulation with epinephrine. C-reactive protein (CRP) values were investigated as indicator for systemic inflammation. Mean CRP levels were elevated in 23 patients (23%). There was no difference of mean PFA-100 results between patients with elevated CRP levels and those without. Our results indicate that the effect of ASA on platelet aggregation, as measured by the PFA-100, is not relevantly influenced in PAOD patients with elevated CRP.

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