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Published on: April 1, 2019
Risk factors for posttraumatic vasospasm
Kiarash Shahlaie1, Krista Keachie, Irene M Hutchins
1Department of Neurological Surgery, University of California Davis School of Medicine, Sacramento, California 95817, USA. kiarash.shahlaie@ucdmc.ucdavis.edu
Journal of Neurosurgery
|June 14, 2011
Summary
Fever and parenchymal contusions are key risk factors for posttraumatic vasospasm (PTV) after severe traumatic brain injury (TBI). Identifying these factors may guide aggressive screening for PTV, improving patient outcomes.
Area of Science:
- Neurology
- Trauma Surgery
- Critical Care Medicine
Background:
- Posttraumatic vasospasm (PTV) is a significant cause of ischemic damage following severe traumatic brain injury (TBI), independently predicting poor outcomes.
- Limited understanding of PTV pathogenesis and risk factors hinders the development of screening and management guidelines.
Purpose of the Study:
- To identify independent risk factors for the development of PTV in patients with severe TBI.
- To inform potential screening strategies and therapeutic targets for PTV.
Main Methods:
- Database review of 46 severe TBI cases (pediatric and adult).
- Univariate analysis to identify potential risk factors.
- Multivariate logistic regression to determine independent predictors and calculate odds ratios (ORs) with 95% confidence intervals (CIs).
Main Results:
- Fever on admission was a strong independent risk factor for PTV (OR 22.2).
- Small parenchymal contusions were also an independent risk factor (OR 7.8).
- Hypothermia on admission was associated with no clinically significant vasospasm; subarachnoid hemorrhage and other intracranial injuries were not independent predictors.
Conclusions:
- Fever and parenchymal contusions are identified as independent risk factors for PTV.
- Findings suggest diffuse mechanical injury and inflammatory pathways contribute to PTV development.
- Aggressive screening in patients with these risk factors and further research into fever/inflammation-targeted treatments are warranted.
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