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Antithrombotic States and outcomes in patients with angiographically negative subarachnoid hemorrhage.
MedLine Citation:
PMID:  21150758     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: : Antithrombotic states are encountered frequently, either because of medical therapy or by preexistent pathological states, and may affect the severity of hemorrhagic strokes such as angiographically negative subarachnoid hemorrhages.
OBJECTIVE: : To determine the effects of antithrombotic states on the outcomes of patients with angiographically negative subarachnoid hemorrhage by examining data pooled from 2 institutions.
METHODS: : This is a retrospective review of patients who experienced angiographically negative subarachnoid hemorrhage at 2 institutions over the past 5 years. The patients were grouped into those with and those without an antithrombotic state at time of hemorrhage and were stratified according to presentation, clinical grades, outcomes, need for cerebrospinal fluid diversion, and development of vasospasm. Computed tomography of the head was assessed for bleed pattern and modified Fisher grade. Patients were excluded if a causative lesion was subsequently discovered.
RESULTS: : There is a statistically significant association between antithrombotic states and poorer presentation, higher Hunt and Hess score, increased amount of subarachnoid hemorrhage, higher modified Fisher grade, increased incidence of vasospasm, hydrocephalus, and poor outcomes as assessed by modified Rankin scale (P < .001). Patients with an antithrombotic state experience worse outcomes even with adjustment for the amount of hemorrhage as assessed by modified Fisher grade (P < .001).
CONCLUSION: : Patients in an antithrombotic state presenting with angiographically negative subarachnoid hemorrhage present with inferior clinical scores, diffuse hemorrhage patterns, and worse modified Fisher grades and have worse outcomes.
Authors:
Ferdinand K Hui; Albert J Schuette; Shaye I Moskowitz; Rishi Gupta; Alejandro M Spiotta; Nancy A Obuchowski; C Michael Cawley
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  68     ISSN:  1524-4040     ISO Abbreviation:  Neurosurgery     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-12-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  United States    
Other Details:
Languages:  eng     Pagination:  125-31     Citation Subset:  IM    
Affiliation:
*Cerebrovascular Center, Cleveland Clinic Foundation, Cleveland, Ohio; †Department of Radiology, Emory University, Atlanta, Georgia; ‡Department of Neurosurgery, Cleveland Clinic Foundation, Cleveland, Ohio; §Quantitative Health Sciences, Cleveland Clinic Foundation, Cleveland, Ohio; ¶Departments of Radiology and Neurosurgery, Emory University, Atlanta, Georgia.
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