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Volume 12 Supplement 1

Abstracts from Hydrocephalus 2015

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Ambulatory intracranial pressure monitoring in NPH with a miniaturized acquisition chain


Diagnosis of cerebrospinal fluid (CSF) disorders may require intracranial pressure (ICP) monitoring. Classically, recordings are performed with a cumbersome acquisition chain, requiring the patient to be bedridden in a specific environment. New solutions have recently been proposed to free patient of these constraints, by mean of telemetric technology. We report our first experience of the use of a miniaturized ambulatory acquisition chain.

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Case report.


We report the case of a 78yrs patient, suspected of normal pressure hydrocephalus (NPH), with non-contributive infusion test. ICP has been recorded during 36hrs, combining miniaturized elements of a classical acquisition chain. Thanks to its compact size, the device allowed patient to be free to have normal activity during the recordings, in particular to stand and walk out of the ward. Like with telemetric systems, ambulatory ICP monitoring is more realistic than bed monitoring. In this first case, monitoring did not show rise of ICP at any moment or any position, eliminating diagnosis of NPH. However, recordings confirmed the negativity of ICP in standing position, as reported in other publications using telemetric systems.


Recent publications concerning telemetric system of ICP recording are encouraging. However, reported morbidity (in particular infection rates) remains significantly higher than with classic ICP recording technics. In this reported case, we use a conventional ICP probe, with classical surgical technique. The large experience of intensive care confirmed the safety and the very low morbidity (in particular infectious risk) of classical ICP monitoring. Combining advantage of both methods (reduced bulk, low morbidity), miniaturized device could represent an interesting option for ambulatory ICP monitoring.

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Correspondence to Romain Manet.

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This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.

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Manet, R., Gergele, L. Ambulatory intracranial pressure monitoring in NPH with a miniaturized acquisition chain. Fluids Barriers CNS 12 (Suppl 1), P32 (2015).

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