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  • Title: Efficacy and safety of a modified intravenous recombinant tissue plasminogen activator regimen in Chinese patients with acute ischemic stroke.
    Author: Pan SM, Liu JF, Liu M, Shen S, Li HJ, Dai LH, Chen XJ.
    Journal: J Stroke Cerebrovasc Dis; 2013 Jul; 22(5):690-3. PubMed ID: 23111010.
    Abstract:
    BACKGROUND: Thrombolytic treatment with intravenous (IV) recombinant tissue plasminogen activator (rtPA; 0.90 mg/kg, with a maximum dose of 90 mg) has been recommended as the standard management for acute ischemic stroke (AIS) thrombolysis. However, the dose of IV rtPA in Asia remains controversial. METHODS: This study was designed to verify the safety and efficacy of IV rtPA treatment for AIS with a lower dosage (0.90 mg/kg, with a maximum dose of 50 mg). Patients were divided into 3 dosage groups according to body weight (BW): group 1, <55 kg for 0.90 mg/kg; group 2, 55 to 67 kg for 0.75 to 0.90 mg/kg; and group 3, >67 kg for <0.75 mg/kg. The following data were collected: patient demographics, vascular risk factors, neuroimaging results, time of rtPA administration, National Institutes of Health Stroke Scale score before treatment and at 24 hours, and a modified Rankin Scale (mRS) score at 3 months. RESULTS: Eighty-three AIS patients who were of Han Chinese descent were included in the study. The baseline characteristics of the 3 dosage groups were well matched. In group 1 (BW <55 kg for 0.90 mg/kg; n = 19), 57.1% had a favorable outcome at 3 months, compared with 61.2% of patients in group 2 (BW 55-67 kg for 0.75-0.90 mg/kg; n = 33) and 51.5% in group 3 (BW >67 kg for <0.75 mg/kg; n = 31; P = .362). There were no significantly statistical differences in the incidence of symptomatic intracerebral hemorrhage and mortality rate. CONCLUSIONS: This IV rtPA regimen (0.90 mg/kg, with a maximum dose of 50 mg) not only shows sufficient favorable outcome in clinical practice in Chinese patients with AIS but also good health economic savings. This regimen could be suitable for many developing countries.
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