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Mortality and long-term functional outcome associated with intracranial pressure after traumatic brain injury.
MedLine Citation:
PMID:  23011528     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: Elevated intracranial pressure (ICP) has been associated with increased mortality in patients with severe traumatic brain injury (TBI). We have examined whether raised ICP is independently associated with mortality, functional status and neuropsychological functioning in adult TBI patients. METHODS: Data from a randomized trial of 499 participants were secondarily analyzed. The primary endpoints were mortality and a composite measure of functional status and neuropsychological function (memory, speed of information processing, executive function) over a 6-month period. The area under the curve of the ICP profile (average ICP) during the first 48 h of monitoring was the main predictor of interest. Multivariable regression was used to adjust for a priori defined confounders: age, Glasgow Coma Score, Abbreviated Injury Scale-head and hypoxia. RESULTS: Of the participants, 365 patients had complete 48-h ICP data. The overall 6-month mortality was 18 %. The adjusted odds ratio of mortality comparing 10-mmHg increases in average ICP was 3.12 (95 % confidence interval 1.79, 5.44; p < 0.01). Overall, higher average ICP was associated with decreased functional status and neuropsychological functioning (p < 0.01). Importantly, among survivors, increasing average ICP was not independently associated with worse performance on neuropsychological testing (p = 0.46). CONCLUSIONS: Average ICP in the first 48 h of monitoring was an independent predictor of mortality and of a composite endpoint of functional and neuropsychological outcome at the 6-month follow-up in moderate or severe TBI patients. However, there was no association between average ICP and neuropsychological functioning among survivors.
Authors:
Shide Badri; Jasper Chen; Jason Barber; Nancy R Temkin; Sureyya S Dikmen; Randall M Chesnut; Steven Deem; N David Yanez; Miriam M Treggiari
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-3
Journal Detail:
Title:  Intensive care medicine     Volume:  -     ISSN:  1432-1238     ISO Abbreviation:  Intensive Care Med     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-9-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7704851     Medline TA:  Intensive Care Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Anesthesiology and Pain Medicine, Harborview Anesthesiology Research Center, Harborview Medical Center, University of Washington School of Medicine, 325 Ninth Avenue, Box 359724, Seattle, WA, 98104, USA.
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