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Combating hyperthermia in acute stroke: a significant clinical concern
1Cerebral Vascular Disease Research Center, Department of Neurology, University of Miami School of Medicine, Fla 33101, USA. mdginsberg@stroke.med.miami.edu
Stroke
|February 24, 1998
Summary
Elevated brain temperature, even mild, worsens outcomes after stroke or brain injury. Promptly managing fever to maintain normothermia is crucial for neuroprotection and better patient recovery.
Area of Science:
- Neuroscience
- Neurology
- Critical Care Medicine
Background:
- Moderate brain temperature elevations post-ischemia or trauma can significantly exacerbate injury.
- Monitoring for and managing fever in patients with acute cerebral ischemia or traumatic brain injury is recommended.
Purpose of the Study:
- To review the impact of brain temperature on injury outcomes.
- To provide recommendations for temperature management in acute neurological conditions.
Main Methods:
- Review of findings from standardized models of transient forebrain and focal ischemia.
- Analysis of studies on brain temperature monitoring in patients with traumatic and ischemic injury.
- Examination of clinical trials on therapeutic hypothermia.
Main Results:
- Intraischemic hyperthermia (39°C) accelerates neuropathological damage in vulnerable brain regions.
- Blunting postischemic hyperthermia confers neuroprotection; mild hyperthermia is detrimental.
- Elevated temperature is linked to poor outcomes in acute stroke and head injury patients.
Conclusions:
- The brain is highly susceptible to even modest temperature increases after acute injury.
- Fever should be aggressively managed in acute stroke and trauma patients.
- Maintaining normothermia (36.7°C–37.0°C) for several days post-injury is advised.