Abstract | OBJECTIVE: A positive correlation between brain temperature and intracranial pressure (ICP) has been proposed for patients under intensive care conditions. DESIGN AND METHODS: Data were recorded at 5-minute intervals in patients under ICP monitoring conditions. Brain temperature: combined ICP/temperature probe (Raumedic), core temperature: indwelling urinary catheter with temperature probe (Rüsch). The correlation between brain temperature and ICP was assessed by computing an estimated mean correlation coefficient (re) and by a time series analysis. PATIENTS: RESULTS: The median ICP was 14 mm Hg (range: -13 to 167). The brain temperature (median 38 degrees C; range 23.2 to 42.1) was 0.3 degrees C (range: -3.6 to 2.6) higher than the core temperature (median 37.7 degrees C; range 16.6 to 42.0), P<0.001. The mean Pearson correlation between ICP and brain temperature in all patients was re=0.13 (P<0.05); the time series analysis (assuming a possible lagged correlation between ICP and brain temperature) revealed a mean correlation of 0.05+/-0.25 (P<0.05). Both correlation coefficients indicate that any relationship between brain temperature and ICP accounts for less than 2% of the variability [coefficient of determination (r)<0.02]. CONCLUSIONS: These data do not support the notion of a clinically useful correlation between brain temperature and ICP.
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Authors | Gerald Huschak, Thomas Hoell, Martin Wiegel, Christian Hohaus, Ralph Stuttmann, Hans-Jörg Meisel, Henning Mast |
Journal | Journal of neurosurgical anesthesiology
(J Neurosurg Anesthesiol)
Vol. 20
Issue 2
Pg. 105-9
(Apr 2008)
ISSN: 1537-1921 [Electronic] United States |
PMID | 18362771
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Topics |
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Body Temperature
- Brain
(physiopathology)
- Brain Injuries
(diagnosis, physiopathology)
- Critical Care
(methods)
- Female
- Fever
(physiopathology)
- Humans
- Intracranial Pressure
- Male
- Middle Aged
- Monitoring, Physiologic
(methods)
- Retrospective Studies
- Time Factors
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