Abstract
Introduction: Accurate knowledge of cerebral temperature is assuming increasing importance, because its manipulation is employed more frequently for cerebral protection.
Purpose: This prospective clinical study was performed to examine how well intraventricular temperature reflects global cerebral temperature.
Methods: The intraventricular temperature was monitored in 61 patients who were admitted to the neurointensive care unit for various intracranial pathological entities. A temperature probe coupled to an intraventricular pressure monitor was inserted in the lateral ventricle. At the conclusion of the monitoring process, a second intraventricular temperature probe was inserted in the ipsilateral ventricle and the previous one was carefully and gradually removed. During that removal, the intraparenchymal temperature was monitored for 90 minutes at 1-cm intervals throughout the brain parenchyma.
Results: The mean intraventricular temperature was 37.84±1.03°C, whereas the mean systemic (rectal) temperature was 37.65±0.68°C. At 1 cm outward distance from the lateral ventricle, the mean intraparenchymal temperature was 38.21±0.32°C, 38.39±0.33°C at 2 cm, 38.27± 0.31°C at 3 cm, 38.26±0.29°C at 4 cm, and, finally, 37.9±0.50°C at 5 cm. Statistical analysis of the recordings showed no statistically significant differences between the intraventricular and intraparenchymal temperatures and intraventricular and rectal temperatures. No statistically significant correlation was established between the intraventricular temperature and parameters, such as the patient’s age, sex, and admitting diagnosis.
Conclusion: Cerebral temperature was relatively stable through the brain parenchyma in this study. Because intraventricular temperature accurately reflects cerebral temperature, this is a reasonable monitoring site for cerebral temperature analysis.
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References
Corbett RJ, Laptook AR, Weathreall P. Non-invasive measurements of human brain temperature using volume localized proton magnetic resonance spectroscopy. J Cereb Blood Flow Metab 1997;17:363–369.
Fountas KN, Kapsalaki EZ, Feltes CH, et al. Disassociation between intracranial and systemic temperatures as an early sign of brain death. J Neurosurg Anesthesiol 2003;15:87–89.
Fountas KN, Kapsalaki EZ, Feltes CH, et al. Proceedings of 11th European Congress of Neurosurgery, Bologna, Italy. Monduzzi, 1999:901–904.
Henker AR, Brown SD, Marion DW. Comparison of brain temperature with bladder and rectal temperatures in adults with severe head injury. Neurosurgery 1998;42:1071–1075.
Mariak Z, Lewko J, Luczaj J, et al. The relationship between directly measured human cerebral and tympanic temperatures during changes in brain temperatures. J Appl Physiol 1998;69:545–549.
Mellergard P. Monitoring of rectal, epidural, and intraventricular temperature in neurosurgical patients. Act Neurochir 1994;60:485–487.
Mellargard P. Intracerebral temperature in neurosurgical patients: intracerebral temperature gradients and relationships to consciousness level. Surg Neurol 1995;43:91–95.
Rumana CS, Gopinath SP, Uzura M, et al. Brain temperature exceeds systemic temperature in head injured patients. Crit Care Med 1998;26:562–567.
Miller G, Stein F, Trevino R, et al. Rectal-scalp temperature difference predicts brain death in children. Pediatr Neurol 1999;20:267–269.
Schiffner H, Schnabel P. Comparative measurements of the brain and internal body temperature in cerebral circulatory stop in dogs. Z Exp Chir 1981;14:302–305.
Schwab S, Spranger M, Aschoff A, et al. Brain temperature monitoring and modulation in patients with severe MCA infarction. Neurology 1997;48:762–767.
Verlloy J, Heytens L, Veeckmans G, et al. Intracerebral temperature monitoring in severely head injured patients. Acta Neurochir 1995;134:76–78.
Weisand MP, Fenney DM.: The relationship between traumatic brain injured induced changes in brain temperature and behavioral and anatomical outcome. J Neurosurg 1994;80:120–132.
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Fountas, K.N., Kapsalaki, E.Z., Feltes, C.H. et al. Intracranial temperature. Neurocrit Care 1, 195–199 (2004). https://doi.org/10.1385/NCC:1:2:195
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DOI: https://doi.org/10.1385/NCC:1:2:195