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  • Title: Two urokinase dose regimens in native arterial and graft occlusions: initial results of a prospective, randomized clinical trial.
    Author: Cragg AH, Smith TP, Corson JD, Nakagawa N, Castaneda F, Kresowik TF, Sharp WJ, Shamma A, Berbaum KS.
    Journal: Radiology; 1991 Mar; 178(3):681-6. PubMed ID: 1994402.
    Abstract:
    The effects of two urokinase (UK) dose regimens on lysis time, lytic success, primary clinical success, and frequency of complications of peripheral thrombolysis were compared. Seventy-two intraarterial UK infusions were performed by means of standard catheter-directed infusion techniques in 63 patients with symptomatic peripheral arterial or bypass graft occlusions. Patients were prospectively randomized to high-dose (250,000 U/h for 4 hours and then 125,000 U/h) or low-dose (50,000 U/h) regimens. The mean time to complete lysis was 20.8, 26.0, 16.5, and 18.2 hours for the high-dose artery, low-dose artery, high-dose graft, and low-dose graft groups, respectively (P was not significant). Respective mean infusion durations were 27.1, 35.4, 22.2, and 25.3 hours. Clinical success was achieved in 65%-85% of cases. The frequency of complications was equivalent between groups, except for a higher frequency of minor bleeding complications in the high-dose group. The two urokinase dose regimens studied were equally effective in enabling peripheral thrombolysis.
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