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  • Title: Older age does not increase risk of hemorrhagic complications after intravenous and/or intra-arterial thrombolysis for acute stroke.
    Author: Pundik S, McWilliams-Dunnigan L, Blackham KL, Kirchner HL, Sundararajan S, Sunshine JL, Tarr RW, Selman WR, Landis DM, Suarez JI.
    Journal: J Stroke Cerebrovasc Dis; 2008 Sep; 17(5):266-72. PubMed ID: 18755405.
    Abstract:
    BACKGROUND: The elderly have significantly higher incidence of ischemic stroke and have higher mortality and morbidity compared with younger patients. Intracranial hemorrhage (ICH) after thrombolysis is one of the causes of unfavorable outcome. However, it is unclear whether age over 80 years is a predictor for hemorrhagic transformation after intravenous, intra-arterial, or a combination of both thrombolytic therapies. METHODS: A database of 488 consecutive patients with ischemic stroke who received thrombolytic therapy was analyzed using logistic regression model to determine whether factors such as age over 80 years, demographic characteristics, onset to treatment time, severity of neurologic deficits, route of administration, blood glucose, or mean arterial pressure were associated with symptomatic ICH. RESULTS: The rates of symptomatic hemorrhage were 12.82% and 10.4% in older and younger groups, respectively. The odds of symptomatic hemorrhage after thrombolytic therapy for patients over 80 years of age after adjusting for route of administration, National Institutes of Health Stroke Scale score, mean arterial pressure, and glucose was not significantly different from that of the younger age group (odds ratio [OR] = 1.64; 95% confidence interval [CI]: 0.729-3.66). Hyperglycemia (>150 mg/dL) was associated with increased odds of symptomatic ICH (OR = 2.32; 95% CI: 1.09-4.93). Patients older than 80 years had similar rates of recanalization (OR = 0.8; 95% CI: 0.4-1.8) and rates of asymptomatic ICH (OR = 2.40; 95% CI: 0.89-6.5). CONCLUSIONS: Risks of ICH after thrombolysis for acute ischemic stroke are similar in patients over and under 80 years of age. Our data suggest that the decision to provide thrombolytic therapy should not be solely based on patient's age.
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