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Coagulopathy Disproportionately Predisposes to Lobar Intracerebral Hemorrhage.
MedLine Citation:
PMID:  23299219     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Anticoagulation increases the risk of intracerebral hemorrhage (ICH), yet whether different underlying disease processes are equally affected is unknown. We tested the hypothesis that coagulopathy, measured by admission international normalized ratio (INR), disproportionately increases the risk for lobar hemorrhages. METHODS: Patients with primary ICH were enrolled into a registry between December 2006 and February 2012 with prospective data acquisition and systematic follow up. Logistic regression was used to test whether lobar versus deep ICH location was independently associated with INR, and then whether INR had an influence on mortality. Spearman's correlation coefficient was used to test for an association between INR and hematoma volume separately in the lobar and deep ICH groups. RESULTS: 221 patients were studied. Patients with lobar ICH were older (71 vs. 62 years old, p < 0.001) and more likely to have prior ICH (10 vs. 0 %, p < 0.001). INR >1.4 was observed on admission more frequently in lobar versus deep ICH (19 vs. 8 %, p = 0.02). Lobar ICH location was independently associated with INR >1.4 (OR: 2.51, 95 % CI: 1.03-6.14, p = 0.043). ICH volume correlated with INR in lobar ICH (p = 0.009), but not deep ICH (p = 0.8). Death at 1 month was independently associated with INR >1.4 (OR: 7.6, 95 % CI: 2.4-24.1, p = 0.001) after correction for the ICH Score. CONCLUSIONS: Abnormal coagulation occurs disproportionally in lobar versus deep ICH, and is associated with larger ICH volumes and higher mortality. These findings suggest a unique risk interaction between coagulopathy and underlying brain pathology due to cerebral amyloid angiopathy.
Authors:
Matthew B Maas; Neil F Rosenberg; Adam R Kosteva; Shyam Prabhakaran; Andrew M Naidech
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-9
Journal Detail:
Title:  Neurocritical care     Volume:  -     ISSN:  1556-0961     ISO Abbreviation:  Neurocrit Care     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101156086     Medline TA:  Neurocrit Care     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Neurology, Northwestern University, 710 N Lake Shore Drive, 11th Floor, Chicago, IL, 60611, USA, mbmaas@northwestern.edu.
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