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Intravenous Thrombolysis in Ischemic Stroke Patients With Isolated Homonymous Hemianopia: Analysis of Safe Implementation of Thrombolysis in Stroke-International Stroke Thrombolysis Register (SITS-ISTR).
MedLine Citation:
PMID:  22811459     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND AND PURPOSE: Hemianopia can cause considerable disability. Only scarce data are available for ischemic stroke patients presenting with isolated homonymous hemianopia and being treated with intravenous thrombolysis. We analyzed outcome of such patients registered in the Safe Implementation of Thrombolysis in Stroke-International Stroke Thrombolysis Register (SITS-ISTR). METHODS: The SITS-ISTR (n=45 079) was searched for patients who presented with isolated homonymous hemianopia. We identified 72 such patients. We report their baseline and demographic characteristics, radiological data, change in their National Institutes of Health Stroke Scale score within 7 days after thrombolysis, and their 3-month modified Rankin Scale (mRS) score. Univariate analysis of parameters associated with any improvement was performed. Hemianopia was assessed with perimetric examination. RESULTS: Of 72 patients, 40 (56%) improved within 7 days after thrombolysis; 19 (26%) had full recovery. Those who improved had significantly lower systolic blood pressure before thrombolysis and were less often administered antiplatelet agents before index stroke. Infarction was visible on 24-hour computed tomography scan in 65% of patients who improved compared with 81.2% of those without improvement (P=0.32). No symptomatic intracranial hemorrhage occurred in patients who improved compared with 1 (3.1%) patient in the nonimproved group (P=0.08). Seventy-one percent of all patients had 3-month mRS score 0 to 2, and 51% had mRS score 0 to 1. Those who improved within 7 days had a significantly better 3-month outcome (median mRS [interquartile range], 0 [0-1] vs 2 [1-2]). CONCLUSIONS: Relatively few ischemic stroke patients received thrombolysis because of isolated homonymous hemianopia. Thrombolysis seems to be safe in these patients. Of those treated, more than half improved and more than two-thirds had good outcome.
Authors:
Daniel Strbian; Niaz Ahmed; Nils Wahlgren; Markku Kaste; Turgut Tatlisumak;
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-17
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  -     ISSN:  1524-4628     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
From the Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland; Department of Neurology, Karolinska University Hospital, Stockholm, Sweden.
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