PMID: 11904027Mar 21, 2002Paper

There is no transmantle pressure gradient in communicating or noncommunicating hydrocephalus

Neurosurgery
Hannes StephensenC Wikkelsö

Abstract

To examine whether a transmantle pressure gradient exists in adult patients with communicating and noncommunicating hydrocephalus. Ten patients participated in the study. The mean patient age was 57 +/- 18 years (range, 20-80 yr); seven patients had communicating hydrocephalus, and three had noncommunicating hydrocephalus. Microsensors were used to measure the intracranial pressure (ICP), for 17 to 24 hours during sleeping and waking periods, in the right lateral ventricle (ICP(IV)) and in the subarachnoid space (ICP(SAS)) over the right cerebral convexity simultaneously. Patient activities and body positions were documented. The hydrostatic pressure difference between the two sensors was calculated from cranial x-rays for four basic body positions and compared with the actual body positions of the patients and the measured difference between the two sensors. For three 10-minute periods, the exact transmantle pressure gradient was calculated for each patient as ICP(IV) - ICP(SAS), adjusted for the hydrostatic pressure difference. The measured pressure difference between the two sensors was always within the limits of the maximal possible hydrostatic pressure difference, and it correlated well with the expected difference for th...Continue Reading

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Citations

Nov 13, 2004·Physiological Measurement·Marek CzosnykaJohn D Pickard
Sep 4, 2009·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Gurjit NagraMiles Johnston
Dec 3, 2011·Journal of Neurosurgery. Pediatrics·Jong-Hyuk ParkWon-Bok Lee
Jul 19, 2012·Neurosurgery·Alexander V ShulyakovMarc R Del Bigio
Jun 22, 2012·Critical Care Research and Practice·P H RaboelB Romner
Mar 8, 2013·Hypertension Research : Official Journal of the Japanese Society of Hypertension·Jong Y Lee, Louis Tobian
Dec 17, 2015·Acta Neurologica Scandinavica·M KasprowiczZ Czosnyka
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Jul 7, 2007·Neurosurgical Focus·Marek CzosnykaJohn D Pickard
Oct 4, 2006·Journal of Clinical Monitoring and Computing·A BreanAudun Stubhaug
Jul 2, 2008·Journal of Neurosurgery·Shahan Momjian, Denis Bichsel
Feb 7, 2015·Journal of Neurosurgery·Hakseung KimDong-Joo Kim
Aug 19, 2015·Neurosurgical Review·David Satzer, Daniel J Guillaume
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Sep 5, 2015·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Charles Raybaud

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