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  • Title: Thrombolytic therapy with recombinant human tissue-type plasminogen activator: a comparison of two doses.
    Author: Risius B, Graor RA, Geisinger MA, Zelch MG, Lucas FV, Young JR.
    Journal: Radiology; 1987 Aug; 164(2):465-8. PubMed ID: 3110860.
    Abstract:
    The efficacy and safety of two doses of recombinant human tissue-type plasminogen activator (rt-PA) were compared. Forty patients with peripheral arterial occlusions were treated with intraarterial rt-PA. Group A (n = 21) received 0.1 mg/kg/h, and group B (n = 19) received 0.05 mg/kg/h. Infusion durations varied from 4 to 8 hours. Complete thrombolysis occurred in 20 of 21 patients (95%) in group A and in all 19 patients (100%) in group B. In group A, fibrinogen levels were greater than 75% of baseline in ten of 21 patients (48%) at infusion termination. In group B, fibrinogen levels were greater than 75% of baseline in 12 of 19 patients (63%) at infusion termination. Three of 40 patients (7%) had significant complications resulting from rt-PA infusion. The results demonstrate that over similar infusion times, a dose of 0.05 mg/kg/h is as efficacious and results in less systemic fibrinogenolysis than a dose of 0.1 mg/kg/h.
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