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This study is the first report on human intracranial temperature in conscious patients during and after an upper respiratory bypass. Temperatures were measured in four subjects subdurally between the frontal lobes and cribriform plate (T(cr)) and on the vault of the skull (T(sd)). Further measurements were taken in the esophagus (T(es)) and on the tympanic(More)
OBJECTIVE Only a limited number of transcranial color-coded Doppler studies have provided ranges for the normal reference values of cerebral hemodynamic parameters. These reports are not fully convergent in relation to the range of values or to the age and sex dependence of blood flow parameters. The aim of the present study was to provide data regarding(More)
BACKGROUND Traumatic optic neuropathy (TON) is a serious sequel of head trauma, leading even to loss of vision. Experimental studies suggest that vascular factors contribute to the pathogenesis of TON. Thus the purpose of this study was to explore associations between blood flow Doppler parameters in the central retinal artery (CRA) and optic nerve function(More)
PURPOSE To study the distribution and mechanism of traumatic injuries to the nerves supplying the eye and muscles protecting the visual apparatus. METHODS Brain autopsy was carried out in 12 consecutive patients who died within three days after closed head injury. A segment of the brainstem with the entire intracranial portion of nerves II-VII was(More)
 Knowledge about human brain temperature is still very limited, despite evidence demonstrating the critical influence of mild increases in temperature on the ischaemic brain. It has been suggested that in passive and exercise hyperthermia the brain may be protected against thermal damage by a mechanism of selective brain cooling (SBC). It is said to bring(More)
To estimate prospectively late ocular manifestations in patients after aneurysmal subarachnoid hemorrhage (SAH) treated with aneurysm clipping. Forty-six patients (12 men and 34 women), 23–69 years of age, were included in this study. A conventional ophthalmological examination, visual evoked potentials (VEPs), and static perimetry were performed on all(More)
The present study was performed to investigate the relationship between noninvasive measurements of core temperature and intracranial temperature measurements in humans. At 2–3 weeks following minor subarachoid haemorrhage, five patients were studied during open brain surgery. All patients were fully conscious and free of neurological symptoms at the time(More)
The purpose of the study was to identify extracranial locations in which temperature changes in humans reflect those of intracranial temperature in a reliable and repeatable way. This was achieved by subjecting 14 non-anaesthetized patients after neurosurgery to face fanning while intracranial and extracranial temperatures were continuously measured. In(More)
OBJECTIVE To show an artifact related to color Doppler flow imaging of the orbit. METHODS Three patients with strongly reflective structures in the orbit were selected from those routinely referred by clinicians for color Doppler ultrasonography of the orbit. Gray scale and color flow images were obtained with a 7.5-MHz linear array probe for a region(More)