A randomized clinical trial was undertaken to assess the efficacy of indobufen in inhibiting platelet adhesiveness in carotid thromboendarterectomy. The patients were treated under double-blind conditions with indobufen and with placebo, and were then assessed by means of scintigraphy with labelled platelets, ultrasonic tomography and angiography for a minimum follow-up period of 6 months. Haematological and clinical assessments were also performed. The results of the study suggest that platelet accumulation in carotid endarterectomy may be an early sign of restenosis; anti-aggregant treatment with indobufen carried out at an early stage prior to surgery inhibited platelet accumulation. The final result showed that anti-aggregant treatment had a positive influence on the short- and medium-term outcome of carotid endarterectomy.
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