Objective: Idiopathic Intracranial Hypertension (IIH) is a condition of unknown etiology frequently associated with dural sinus stenosis. There is emerging evidence that venous sinus stenting is an effective treatment. We use phase contrast cine MRI to observe changes in flow dynamics of multiple intracranial fluids and their response to different treatments in a patient with IIH.
Methods: We quantified the following parameters at the level of the aqueduct of Sylvius and the cervical C2C3: Cerebrospinal Fluid (CSF), arterial and venous flow; CSF velocity amplitude; artero-venous delay (AVD); artero-CSF delay and percentage of venous outflow normalized to total arterial inflow (tIJV/tA). Analyses were run before Lumbar Puncture (LP) (A), after LP (B), after medical therapy (C) and after venous stent placements deployed at two separate times (D and E).
Results: AVD and tIJV/tA improved only after CSF removal and after stent placements. CSF velocity amplitude remained elevated. Arterial flow profile showed a dramatic reduction after LP with improvement in mean venous flow. This report is the first to demonstrate interactive changes in intracranial fluid dynamics that occur before and after different therapeutic interventions in IIH.
Conclusion: The data provide valuable information regarding changes in different fluid compartments suggesting a profound redistribution of pressures along fluid compartments after different treatments. We discuss how increased intracranial venous blood could be "tumoral" in IIH and facilitating its outflow could be therapeutic.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2174/1567202615666180528113616 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
AI-guided virtual biopsy: Automated differentiation of cerebral gliomas from other benign and malignant MRI findings using deep learning.
Neurooncol Adv
January 2025
Institute for Artificial Intelligence in Medicine, University Hospital Essen, Germany.
Background: This study aimed to develop an automated algorithm to noninvasively distinguish gliomas from other intracranial pathologies, preventing misdiagnosis and ensuring accurate analysis before further glioma assessment.
Methods: A cohort of 1280 patients with a variety of intracranial pathologies was included. It comprised 218 gliomas (mean age 54.
Case report: special imaging features in a uremic patient with intracranial infection caused by , almost misdiagnosed as demyelinating disease.
Front Med (Lausanne)
January 2025
Department of Neurology, Ningbo First Hospital, Ningbo, Zhejiang, China.
is a very rare pathogen that causes intracranial infection. It is commonly found in immunocompromised patients and is resistant to multiple antibiotics. In this case report, we present a case of human central nervous system infection caused by , which was initially misdiagnosed as demyelinating disease due to the specific imaging findings.
View Article and Find Full Text PDFPrimary Diffuse Leptomeningeal Melanomatosis Leading to Raised Intracranial Pressure in a Pediatric Patient.
Clin Case Rep
February 2025
Department of Pediatrics, Division of Pediatric Neurology Children's Medical Center, Pediatrics Center of Excellent, Tehran University of Medical Sciences Tehran Iran.
A critical clinical consideration, in addition to other common risk factors predisposing individuals to idiopathic intracranial hypertension (IIH), involves the potential co-occurrence of increased intracranial pressure and elevated cerebrospinal fluid protein levels in the presence of underlying malignancies. Primary diffuse leptomeningeal melanomatosis, an exceptionally rare condition with few reported cases in the pediatric population, illustrates this scenario. Timely decision-making based on clinical suspicion to perform a biopsy and involving a skilled pathologist for accurate reporting are essential steps toward achieving a definitive diagnosis.
View Article and Find Full Text PDFSevere Neonatal Asphyxia Associated with Ureaplasma urealyticum Infection: A Case Report.
Am J Case Rep
January 2025
Department of Neonatology, The First Division Hospital of Xinjiang Production and Construction Corps, Akesu, Xinjiang, China.
BACKGROUND Ureaplasma urealyticum (UU) is a common microorganism that has been associated with a variety of obstetric and neonatal complications, such as infertility, stillbirth, histologic chorioamnionitis, neonatal sepsis, respiratory infections, and central nervous system infections. However, it is rare for it to cause severe neonatal asphyxia. This rarity is the focus of our case report, which aims to highlight the potential severity of UU infections in newborns.
View Article and Find Full Text PDFVolumetric response after closure of a spinal CSF leak in patients with spontaneous intracranial hypotension: a multicompartmental longitudinal study.
J Neurointerv Surg
January 2025
Department of Neuroradiology, Medical Center - University of Freiburg, Freiburg, Germany
Background: Cerebrospinal fluid (CSF) loss in spontaneous intracranial hypotension (SIH) is accompanied by volume shifts between the intracranial compartments. This study investigated tricompartimental and longitudinal volume shifts after closure of a CSF leak.
Methods: Patients with SIH and suitable pre-therapeutic and post-therapeutic imaging for volumetric analysis were identified from our tertiary care center between 2020 and 2023.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!