Emerging Topics in Hydrocephalus

A special issue of Biomedicines (ISSN 2227-9059). This special issue belongs to the section "Neurobiology and Clinical Neuroscience".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 1770

Special Issue Editor


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Guest Editor
Department of Neurosurgery, Hospital University Center of Amiens-Picardie, 80054 Amiens, France
Interests: CSF pathologies; CSF physiology; TBI; ICP; infusion study; cerebral hemodynamic and hydrodynamic

Special Issue Information

Dear Colleagues,

Hydrocephalus is not a single pathology, but a group of multiple pathologies whose prevalence is unknown. The clinical repercussions are major for the patient in terms of disability, with the development of a clinical triad described by Salomon Hakim and early mortality.

Among these pathologies, some have an etiological diagnosis. These are secondary hydrocephalus (post-infectious, posthemorrhagic, etc.). However, the mechanisms of the genesis of hydrocephalus are not perfectly described.

Most chronic hydrocephalus remains idiopathic. These cases of idiopathic hydrocephalus are grouped together in a single entity often called “idiopathic normal pressure hydrocephalus”. Their pathophysiology is unknown. Therefore, the mechanisms of action of the treatment are not known, and it does not address the cause. This makes management complex in many cases. In addition, surgical treatment is often effective only for a limited time, and in many cases for about 24 months.

It seems in recent works that there is a link between the presence of biomarkers in the CSF and the secondary degradation of the operated patients. A molecular pathway to the development of chronic hydrocephalus is being considered, which would be secondary to felting of the intracranial fluid spaces. Alterations in the dynamics of the cerebrospinal fluid (CSF) have also been found at different levels of study (basal cisterns, spinal subarachnoid spaces, intraventricular). These findings may lead to the description of cerebral compliance disorders at different sites.

The aim of this Special Issue on hydrocephalus is to describe the different pathophysiological leads to help remove the term idiopathic from our language when we talk about hydrocephalus. This includes studies on the pathophysiology or the development of new and justified classifications of hydrocephalus.

Dr. Cyrille Capel
Guest Editor

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Keywords

  • hydrocephalus
  • CSF
  • CSF biomarkers
  • cerebral hydrodynamic
  • cerebral hemodynamics
  • aging disorders

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Published Papers (1 paper)

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Research

10 pages, 1634 KiB  
Article
Hydrodynamic and Hemodynamic Interactions in Chronic Hydrocephalus
by Cyrille Capel, Kimi Owashi, Johann Peltier and Olivier Balédent
Biomedicines 2023, 11(11), 2931; https://doi.org/10.3390/biomedicines11112931 - 30 Oct 2023
Cited by 5 | Viewed by 1329
Abstract
Background: During a cardiac cycle, intracranial pressure is related to arterial entry into the cranium and its interaction with intracranial compliance. The arterial inflow is compensated by intracranial compliance and, initially, the flushing of cerebrospinal fluid (CSF) into the cervical subarachnoid spaces. Our [...] Read more.
Background: During a cardiac cycle, intracranial pressure is related to arterial entry into the cranium and its interaction with intracranial compliance. The arterial inflow is compensated by intracranial compliance and, initially, the flushing of cerebrospinal fluid (CSF) into the cervical subarachnoid spaces. Our objective is to analyze the interactions between intracranial arteriovenous exchange and cerebrospinal fluid oscillations. Method: A total of 23 patients (73 ± 8 years) with suspected chronic hydrocephalus (CH) underwent an infusion test and phase-contrast MRI. Rout is an important factor in the diagnosis of CH. Patients were divided into 2 populations: probableCH (Rout: resistance to CSF outflow) (Rout > 12 mmHg/mL/min, 13 patients) and unlikelyCH (Rout < 12 mmHg/mL/min, 10 patients). We measured the intracranial vascular volume (arteriovenous stroke volume: SVvasc) and CSF (CSF stroke volume at upper cervical level: SVCSF) volume variations during the cardiac cycle. Results: In the whole population, we observed a significant correlation between SVvasc and SVCSF (R2 = 0.43; p = 0.0007). In the population unlikelyCH, this correlation was significant (R2 = 0.76; p = 0.001). In the population probableCH, this correlation was not significant (R2 = 0.17, p = 0.16). Conclusions: These results show that the link between the compliance of the oscillating CSF and the abrupt arterial inflow seems to be altered in CH. CSF oscillations between intracranial and cervical fluid spaces limit the impact of the abrupt arterial inflow. Full article
(This article belongs to the Special Issue Emerging Topics in Hydrocephalus)
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