Acta neurochirurgica. Supplement
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Acta Neurochir. Suppl. · Jan 2005
Clinical TrialInnovative non-invasive method for absolute intracranial pressure measurement without calibration.
A new absolute ICP (aICP) measurement method was designed which does not need calibration. In this study we compared a new method with invasive aICP method in ICU on the patients with closed severe traumatic brain injury. A new method is based on two-depth TCD technique for aICP and external absolute pressure aPe comparison using the eye artery (EA) as natural "balance". ⋯ Fifty seven simultaneous invasive and non-invasive aICP measurements were performed in aICP range from 3.0 to 37.0 mmHg. Bland Altman plot of the differences between simultaneous invasive and non-invasive aICP measurements shows the negligible mean difference (mean = 0.94 mmHg) with a standard deviation of 6.18 mmHg. This validation study shows that it is possible to measure aICP non-invasively without calibration of the system with 95% confidence interval of 12 mmHg.
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Acta Neurochir. Suppl. · Jan 2005
ICM+: software for on-line analysis of bedside monitoring data after severe head trauma.
ICM software was developed in 1986 in Warsaw, Poland and has been in use at the University of Cambridge Neurocritical Care Unit for 10 years collecting data from bed-side monitors in nearly 600 severely head injured patients and calculating secondary indices describing cerebral autoregulation and pressure-volume compensation. The new software ICM+ includes a much extended calculation engine that allows easy configuration and on-line trending of complex parameters. The program records raw signals, and calculates time trends of summary parameters. ⋯ All this allows complex information coming off the bed-side monitors to be summarized in a concise fashion and presented to medical and nursing staff in a simple way that alerts them to the development of various pathological processes. The system provides a universal tool for clinical and academic purposes. Its flexibility and advanced signal processing is specialized for the needs of multidisciplinary brain monitoring.
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Acta Neurochir. Suppl. · Jan 2005
Comparative StudyLateral supraorbital approach as an alternative to the classical pterional approach.
The standard pterional approach has been used to approach aneurysms of the anterior circulation and the basilar tip, suprasellar tumors, cavernous lesions. The senior author (JH) established a lateral supraorbital approach as an alternative to the pterional approach after continuous trial and error. We describe the techniques of this approach based on clinical experiences. ⋯ This approach is simpler, faster, safer and less invasive than the classical pterional approach.
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Acta Neurochir. Suppl. · Jan 2005
Pulse and mean intracranial pressure analysis in pediatric traumatic brain injury.
We investigated the relationship between the intracranial pulse pressure (ICPpp) and the mean intracranial pressure (ICP(M)) in pediatric patients with traumatic brain injury (TBI). ⋯ Although there is an underlying linear relationship between ICPpp and ICPM, nonlinear patterns are also present. Further research is required to determine if specific nonlinear ICPpp-ICPM patterns correlate with clinically significant information.
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Acta Neurochir. Suppl. · Jan 2005
Clinical TrialOzone chemonucleolysis in non-contained lumbar disc herniations: a pilot study with 12 months follow-up.
Prospective case series with six and twelve months follow up. ⋯ The results of this study indicate the ozone chemonucleolysis as a possibly effective modality of treatment in patients affected by signs and symptoms of non-contained lumbar disc herniations that have overpassed conservative measures and have not yet fulfilled the indications for open surgical treatment.