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      Intravenous Thrombolysis with rt-PA in Acute Ischemic Stroke Patients Aged Older than 80 Years in Italy

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          Abstract

          Background: Intravenous (i.v.) thrombolysis with rt-PA within 3 h from symptom onset is the only approved treatment of pharmacological revascularization in acute ischemic stroke. However, little information exists on its use in elderly patients, in particular those aged >80 years, who at present are excluded from treatment. Methods: In a multicenter Italian study on i.v. thrombolysis, patients aged >80 years (n = 41) were compared with those aged ≤80 years (n = 207) regarding the percentage of symptomatic (nonfatal and fatal) intracerebral hemorrhage (SICH), favorable 3-month functional outcome (modified Rankin Scale score 0–2) and poor outcome (death or dependence, i.e. modified Rankin Scale score 3–5). Results: The percentage of SICH (nonfatal and fatal) was comparable between older (2.4%, 2.4%) and younger (2.4%, 2.4%) patient groups (p = 1.0). At 3 months, favorable outcome occurred in 44% and dependence in 22% of the older, and respectively in 58.5 and in 30.9% of the younger patients (p = 0.897). Patients aged >80 years had a higher mortality (34.1%) as compared to those aged ≤80 years (10.6%) (p < 0.001). Baseline National Institute of Health Stroke Scale score was the only statistically significant predictor of both mortality (OR = 1.26; 95% CI = 1.07–1.50) and poor outcome (OR = 1.39; 95% CI = 1.14–1.68) in the >80-year-old group. Conclusions: Acute ischemic stroke patients aged >80 years treated with i.v. rt-PA have a higher mortality than younger patients, but there are no differences for SICH nor for favorable outcome. Our data suggest that thrombolytic therapy should not be a priori denied for appropriately selected >80-year-old patients but randomized controlled clinical trials are necessary before definite recommendations can be given.

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          Most cited references26

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          Alternative projections of mortality and disability by cause 1990–2020: Global Burden of Disease Study

          The Lancet, 349(9064), 1498-1504
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            Age and National Institutes of Health Stroke Scale Score within 6 hours after onset are accurate predictors of outcome after cerebral ischemia: development and external validation of prognostic models.

            To date, no validated, comprehensive, and practicable model exists to predict functional recovery within the first hours of cerebral ischemic symptoms. The purpose of this study was to externally validate 2 prognostic models predicting functional outcome and survival at 100 days within the first 6 hours after onset of acute cerebral ischemia. On admission to a participating hospital, patients were registered prospectively and included according to defined criteria. Follow-up was performed 100 days after the event. With the use of prospectively collected data, 2 prognostic models were developed and internally calibrated in 1079 patients and externally validated in 1307 patients. By means of age and National Institutes of Health Stroke Scale (NIHSS) score as independent variables, model I predicts incomplete functional recovery (Barthel Index <95) versus complete functional recovery, and model II predicts mortality versus survival. In the validation data set, model I correctly predicted 62.9% of the patients who were incompletely restituted or had died and 83.2% of the completely restituted patients, and model II correctly predicted 57.9% of the patients who had died and 91.5% of the surviving patients. Both models performed better than the treating physicians' predictions made within 6 hours after admission. The resulting prognostic models are useful to correctly stratify treatment groups in clinical trials and should guide inclusion criteria in clinical trials, which in turn increases the power to detect clinically relevant differences.
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              Long-term survival after first-ever stroke: the Oxfordshire Community Stroke Project.

              There have been relatively few community-based studies of long-term prognosis after acute stroke. This study aimed to provide precise estimates of the absolute and relative risks of dying in an unselected cohort of patients with a first-ever stroke. Six hundred seventy-five patients were registered by a community-based stroke register (the Oxfordshire Community Stroke Project) and prospectively followed up for up to 6.5 years. Their relative risk of death was calculated using age- and sex-specific mortality rates for Oxfordshire. During the first 30 days, 129 (19%) patients died. Patients who survived at least 30 days after a first-ever stroke thereafter had an average annual risk of death of 9.1%, 2.3-fold the risk in people from the general population. Although the absolute (about 15%) and relative (about threefold) risks of death were highest in these 30-day survivors over the first year after the stroke, they were at increased risk of dying over the next few years (range of relative risk for individual years, 1.1-2.9). Predictably, older patients had a worse absolute survival but, relative to the general population, stroke also increased the relative risk of dying in younger patients. During the first 30 days stroke accounts for most deaths; after this time nonstroke cardiovascular disease becomes increasingly important and is the most common cause of death after the first year. These data highlight the importance of long-term secondary prevention of vascular events in stroke patients, targeted as much at the cardiovascular as at the cerebrovascular circulation.
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                Author and article information

                Journal
                CED
                Cerebrovasc Dis
                10.1159/issn.1015-9770
                Cerebrovascular Diseases
                S. Karger AG
                1015-9770
                1421-9786
                2008
                February 2008
                11 December 2007
                : 25
                : 1-2
                : 129-135
                Affiliations
                aUnità di Trattamento Neurovascolare, Department of Neurological Sciences and Department of Emergency, University of Rome La Sapienza, Rome, bStroke Unit, University of Perugia, Perugia, cStroke Unit, Santa Maria Nuova Hospital, Reggio Emilia, dDepartment of Neurosciences, University of Pisa, Pisa, eDepartment of Clinical and Experimental Medicine, University of Padova, Padova, and fStroke Unit, Hospital of Vicenza, Vicenza, Italy
                Article
                112323 Cerebrovasc Dis 2008;25:129–135
                10.1159/000112323
                18073466
                ef7d08a3-1f8d-44e7-beea-716d7a9b7969
                © 2007 S. Karger AG, Basel

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                History
                : 22 January 2007
                : 14 August 2007
                Page count
                Tables: 3, References: 40, Pages: 7
                Categories
                Original Paper

                Geriatric medicine,Neurology,Cardiovascular Medicine,Neurosciences,Clinical Psychology & Psychiatry,Public health
                Elderly,Ischemic stroke,Intravenous thrombolysis,rt-PA

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