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Characterisation of supra- and infratentorial ICP profiles

Moyse, Emmanuel and Ros, Maxime and Marhar, Fouad and Swider, Pascal and Schmidt, Eric Albert Characterisation of supra- and infratentorial ICP profiles. (2016) In: Intracranial Pressure and Brain Monitoring XV. (Acta Neurochirurgica Supplement). Springer, Cham, 37-40. ISBN 978-3-319-22532-6

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Official URL: http://dx.doi.org/10.1007/978-3-319-22533-3_7

Abstract

In pathophysiology and clinical practice, the intracranial pressure (ICP) profiles in the supratentorial and infratentorial compartments are unclear. We know that the pressure within the skull is unevenly distributed, with demonstrated ICP gradients. We recorded and characterised the supra- and infratentorial ICP patterns to understand what drives the transtentorial ICP gradient.A 70-year-old man was operated on for acute cerebellar infarction. One supratentorial probe and one cerebellar probe were implanted. Both signals were recorded concurrently and analysed off-line. We calculated mean ICP, ICP pulse amplitude, respiratory waves, slow waves and the RAP index of supra- and infratentorial ICP signals. Then, we measured transtentorial difference and performed correlation analysis for every index.Supratentorial ICP mean was 8.5 mmHg lower than infratentorial ICP, but the difference lessens for higher values. Both signals across the tentorium showed close correlation. Supra- and infratentorial pulse amplitude, respiratory waves and slow waves also showed a high degree of correlation. The compensatory reserve (RAP) showed good correlation. In this case report, we demonstrate that the mean value of ICP is higher in the posterior fossa, with a strong correlation across the tentorium. All other ICP-derived parameters display a symmetrical profile.

Item Type:Book Section
Additional Information:Thanks to Springer editor. The original PDF of the article can be found at https://link.springer.com/chapter/10.1007%2F978-3-319-22533-3_7
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Centre Hospitalier Universitaire de Toulouse - CHU Toulouse (FRANCE)
Laboratory name:
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Deposited By: Pascal SWIDER
Deposited On:16 May 2018 14:46

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