Intracranial pressure monitoring in the posterior fossa: a preliminary report

Rosenwasser, Robert H.; Kleiner, Laurence I.; Krzeminski, Joseph P.; Buchheit, William A.

doi:10.3171/jns.1989.71.4.0503

Cited by 50 publications

(36 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, when the pressure was higher than 30 mm Hg, the ICP was greater in the hemisphere in which the mass lesion was located. 21 In contradiction, Crutchfield et al, 22 using the same type of intraparenchymatous fiberoptic transducer, could not find ICP differences between compartments in an epidural balloon dog-model. However, the absence of essential data regarding the volume of the balloon and the midline shift induced makes the analysis of their results difficult.…”

Section: Experimental Conditionmentioning

confidence: 95%

Different Compartments of Intracranial Pressure and Its Relationship to Cerebral Blood Flow

Schaller

Graf

2005

The Journal of Trauma: Injury, Infection, and Critical Care

View full text Add to dashboard Cite

show abstract

Section: Experimental Conditionmentioning

confidence: 95%

Different Compartments of Intracranial Pressure and Its Relationship to Cerebral Blood Flow

Schaller

Graf

2005

The Journal of Trauma: Injury, Infection, and Critical Care

View full text Add to dashboard Cite

show abstract

“…Rosenwasser et al [ 3 ] reports a clinical series suggesting that during the fi rst 12 h the posterior fossa pressure might be 50 % greater than that of the supratentorial space in all patients. Over the next 12 h the supratentorial pressure was 10 and 15 % higher than the posterior fossa pressures in all patients, and after 48 h of monitoring, the pressures had equilibrated.…”

Section: Discussionmentioning

confidence: 99%

Characterisation of Supra- and Infratentorial ICP Profiles

Moyse

Ros

Marhar

et al. 2016

Acta Neurochirurgica Supplement

View full text Add to dashboard Cite

OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 18161To link to this article: DOI: 10.1007/978-3-319-22533-3_7 URL: http://dx.doi.org/10.1007/978-3-319-22533-3_7To cite this version: 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, pp. 37-40. ISBN 978-3-319-22532-6 Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr Abstract In pathophysiology and clinical practice, the intracranial pressure (ICP) profi les 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 ICPderived parameters display a symmetrical profi le.

show abstract

“…Under normal anatomical conditions, pressures in the infra-and supratentorial fossae are in equilibrium, lending support to this approach. Several studies, how ever [31,[44][45][46], have illustrated that abnormal situa tions. such as surgery or brain shifts, can alter the normal equilibration of these two compartments, possibly result ing in different pressures recorded in each fossa.…”

Section: Discussionmentioning

confidence: 99%

Fourth Ventricular Entrapment Caused by Rostrocaudal Herniation following Shunt Malfunction

Montgomery

Winfield²

1993

Pediatr Neurosurg

View full text Add to dashboard Cite

The subacute development of isolated fourth ventricle (IFV) is a recognized complication following shunting of the lateral ventricles for congenital and acquired hydrocephalus. We present an unusual case of acute IFV in a clinical setting which has not previously been described. Subsequent to rostrocaudal herniation caused by an obstructed frontally placed ventricular catheter, IFV developed in our patient 24 h following shunt revision, necessitating placement of an additional fourth ventricle shunt system. No signs of intraventricular hemorrhage or cerebrospinal fluid (CSF) infection were detected at the time of shunt revision and there was no documentation of similar events in the perinatal history. Dependent upon the actual underlying etiology of this child’s hydrocephalus, we hypothesize that two mechanisms may have accounted for this unusual and precipitous development of IFV. Following rostrocaudal herniation and caudal shift of the brainstem, progressive edema in the pons developed. If communicating hydrocephalus was the primary etiology, then midbrain edema occluded the aqueduct of Sylvius, preventing retrograde flow of CSF to the shunt. A distinctly different mechanism for acute IFV must be invoked if aqueductal stenosis was the preexisting cause for congenital hydrocephalus. Following herniation, brainstem displacement and edema resulted in obliteration of the lateral pontine and ambient cisterns, preventing the normal rostral migration of CSF around and over the mesencephalon. Cerebellar tonsillar herniation with impaction of the tonsils into the foramen magnum may have also contributed to obstruction of fourth ventricular outflow in both settings. This unusual case of acute onset IFV is presented in detail. The underlying etiologies and clinical settings in which IFV may develop is reviewed as well. Although the precise sequence of events leading to acute IFV cannot be resolved for this case, the importance of recognizing the potential for acute IFV following herniation is underscored.

show abstract

Intracranial pressure monitoring in the posterior fossa: a preliminary report

Cited by 50 publications

References 6 publications

Different Compartments of Intracranial Pressure and Its Relationship to Cerebral Blood Flow

Different Compartments of Intracranial Pressure and Its Relationship to Cerebral Blood Flow

Characterisation of Supra- and Infratentorial ICP Profiles

Fourth Ventricular Entrapment Caused by Rostrocaudal Herniation following Shunt Malfunction

Contact Info

Product

Resources

About