Abstract
Adenosine diphosphate (ADP)-receptor antagonists are widely used for thrombus prevention, although reversing their platelet dysfunction is difficult. This study evaluated the ability of desmopressin to reverse clopidogrel-induced platelet dysfunction. Sprague–Dawley rats received either clopidogrel (30 mg/kg) or placebo, followed 4 h later by saline or desmopressin (0.15, 0.3, or 0.6 μg/kg). Bleeding times and platelet aggregation studies were subsequently performed. A bleeding time >25 min was considered “prolonged.” The median bleeding time for clopidogrel-exposed rats was 21 min, vs. 6 min for controls (p < 0.01). Progressively higher doses of 1-deamino-8-d-arginine vasopressin (DDAVP) were associated with a reduced number of rats with prolonged bleeding time (p = 0.001). Higher doses of DDAVP were also associated with a reduction in the median (IQR) bleeding time; 29 (13.5–30) min in rats receiving clopidogrel without DDAVP vs. 19 (12–28) min in rats receiving clopidogrel and 0.6 μg/kg DDAVP. The step-wise dosing of DDAVP resulted in a 54 % reduction in meeting the endpoint of prolonged bleeding time (OR 0.46; p = 0.025; 95 % CI 0.23–0.91). Platelet aggregation was observed in all control rats, but only some of those clopidogrel-treated rats who received 0.6 μg/kg DDAVP. In this model of an ADP-receptor antagonist, DDAVP results in partial reversal of clopidogrel-induced platelet dysfunction.
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An erratum to this article is available at http://dx.doi.org/10.1007/s13181-013-0308-9.
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Levine, M., Swenson, S., McCormick, T. et al. Reversal of Thienopyridine-Induced Platelet Dysfunction Following Desmopressin Administration. J. Med. Toxicol. 9, 139–143 (2013). https://doi.org/10.1007/s13181-012-0275-6
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DOI: https://doi.org/10.1007/s13181-012-0275-6