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Global cerebral atrophy after subarachnoid hemorrhage: a possible marker of acute brain injury and assessment of its impact on outcome.
MedLine Citation:
PMID:  22890637     Owner:  NLM     Status:  In-Data-Review    
There is a correlation between poor neuropsychological outcome and focal regions of atrophy in patients with subarachnoid hemorrhage (SAH). No study has investigated the impact of global brain atrophy on outcome after SAH. In other neurological disorders, such as multiple sclerosis, a correlation has been found between global atrophy and outcome. This analysis of patients entered into a randomized clinical trial of clazosentan in patients with SAH (CONSCIOUS-1) investigated the relationship between global cerebral atrophy, clinical factors, and outcome.The 413 patients in the CONSCIOUS-1 study underwent cranial computed tomography (CT) on admission and 6 weeks after SAH. After patients with large clip/coil artefacts and those with infarctions on CT were excluded, 97 patients remained and had voxel-based volumetric measurements of the baseline and 6-week CT scans. The percentage difference in volume between times was taken and analysed against clinical variables. Relationships were modeled using univariate and multivariate analysis.Age, female gender, and higher body temperature during the patient's stay in the intensive care unit were significantly correlated with brain atrophy. Greater brain atrophy significantly correlated with poor outcome (modified Rankin scale), more severe neurological deficits on the National Institute of Health Stroke Scale (NIHSS), and poorer health status (EQ-5D).
Alan K H Tam; Don Ilodigwe; Zeyu Li; Tom A Schweizer; R Loch Macdonald
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta neurochirurgica. Supplement     Volume:  115     ISSN:  0065-1419     ISO Abbreviation:  Acta Neurochir. Suppl.     Publication Date:  2013  
Date Detail:
Created Date:  2012-08-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100962752     Medline TA:  Acta Neurochir Suppl     Country:  Austria    
Other Details:
Languages:  eng     Pagination:  17-21     Citation Subset:  IM    
Division of Physical Medicine and Rehabilitation, Department of Medicine, McMaster University, Hamilton, ON, Canada.
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