Journal
JOURNAL OF NEUROSURGICAL ANESTHESIOLOGY
Volume 15, Issue 2, Pages 87-89Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00008506-200304000-00004
Keywords
brain death; cerebral perfusion pressure; intracranial pressure; intraventricular temperature; systemic temperature
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Intracranial temperature and its normal variation, as well as its response to various pathologic conditions, has become a critical component of monitoring in neurosurgical intensive care. In a prospective clinical study of 54 neurosurgical patients, intracranial pressure, cerebral perfusion pressure, and intraventricular and systemic temperatures were monitored in a neurosurgical intensive care unit. All of our patients' intraventricular temperatures were initially higher than their systemic temperatures. In 11 patients, the intraventricular temperature became lower than the systemic temperature, in a median time of 4.43 hours (range, 4.21-5.18 hours), prior to any changes in intracranial and cerebral perfusion pressures. Reversal of the disassociation between intraventricular and systemic temperatures may be an early marker of patients with a poor prognosis.
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