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Relation between brain oxygen metabolism and temperature gradient between brain and bladder.

A Sakurai·K Kinoshita·T Atsumi·T Moriya·A Utagawa·N Hayashi
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Abstract

Brain temperature is slightly higher than systemic core temperature normally. Fluctuations of a temperature gradient between brain and core body have recently been reported after a severe brain insult. The pathophysiological significance of the gradient fluctuations is unclear. This study aims to identify the gradient fluctuations between brain and core temperatures after a brain insult. Temperature gradient (brain temperature minus bladder temperature: degrees C) was measured in 11 patients (125 points) with severe brain injury (4 patients with subarachnoid hemorrhage, 4 with cerebral hemorrhage. and 3 with traumatic brain injury). Cerebral perfusion pressure (CPP; mmHg) and jugular venous blood saturation (SjO2; %) was also measured. The average gradient was 0.29 +/- 0.285 degrees C when CPP was above 50 mmHg. SjO2 was inversely related to the temperature gradient in a significant manner (r = 0.472; P < 0.0001). Temperature gradients tended to increase and then decrease when CPP < 50 mmHg. This study demonstrates that increased temperature gradient has a significant inverse correlation with SjO2 at CPP > 50 mmHg. The current results suggest that the fluctuations in temperature gradient in critical conditions reflect brain ischemia.

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AdultAgedBlood PressureBody TemperatureBrainBrain InjuriesCerebral HemorrhageCerebrovascular CirculationFemaleHumansMaleMiddle AgedOxygen ConsumptionSubarachnoid HemorrhageUrinary BladderJournal Article

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BibTeXRIS

A Sakurai, K Kinoshita, T Atsumi, T Moriya, A Utagawa, N Hayashi. 2003. Relation between brain oxygen metabolism and temperature gradient between brain and bladder.. https://doi.org/10.1007/978-3-7091-0651-8_54

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