Noninvasive Estimation of Pulsatile and Static Intracranial Pressure by Optical Coherence Tomography.

Purpose: To explore the ability of optical coherence tomography (OCT) to noninvasively estimate pulsatile and static intracranial pressure (ICP).

Methods: An OCT examination was performed in patients who underwent continuous overnight monitoring of the pulsatile and static ICP for diagnostic purpose. We included two patient groups, patients with idiopathic intracranial hypertension (IIH; n = 20) and patients with no verified cerebrospinal fluid disturbances (reference; n = 12).

In Vivo Evidence for Impaired Glymphatic Function in the Visual Pathway of Patients With Normal Pressure Hydrocephalus.

Purpose: Impaired ability to remove toxic metabolites from central nervous system may be an important link between cerebral and ophthalmic degenerative diseases. The aim of the present study was to compare the glymphatic function in the visual pathway in patients with idiopathic normal pressure hydrocephalus (iNPH), a neurodegenerative dementia subtype, with a reference group.

Methods: We compared 31 subjects with Definite iNPH (i.

The Human Visual Pathway Communicates Directly With the Subarachnoid Space.

Purpose: Explore in vivo whether there is direct communication between the cerebrospinal fluid (CSF) and extravascular compartment of human visual pathway structures.

Methods: A prospective and observational study included 10 subjects who underwent intrathecal gadolinium-enhanced magnetic resonance imaging (MRI) for suspected CSF circulation disorder, but with a negative result and with no known ophthalmic diseases. After precontrast T1-weighted MRI, 0.

Usefulness of the endoscope in microvascular decompression for trigeminal neuralgia and MRI-based prediction of the need for endoscopy.

Background: Microvascular decompression (MVD) is a documented effective treatment of trigeminal neuralgia (TN). Lately, reports on endoscopy-assisted microvascular decompression (eaMVD) with better outcome and less risk have emerged. This study was undertaken to verify under which circumstances the endoscope proved essential in identifying the neurovascular conflict (NVC) during eaMVD for TN, and to assess the possibility to predict the need for the endoscope on preoperative magnetic resonance imaging (MRI).

Hypertension in patients with cranial nerve vascular compression syndromes and comparison with a population-based cohort.

Object: Although essential arterial hypertension (AH) represents a major health issue, its underlying causes remain unknown. An intriguing hypothesis is that AH in some cases may be caused by vascular compression of the rostral ventrolateral medulla (RVLM). Because hemifacial spasms (HFSs) are caused by vascular compression of the seventh cranial nerve in close proximity to the RVLM, one would, if this hypothesis is correct, expect to find a positive association between the occurrence of AH and chronic HFSs.

Local and systemic pro-inflammatory and anti-inflammatory cytokine patterns in patients with chronic subdural hematoma: a prospective study.

Objective And Design: Innate immune pro- and anti-inflammatory responses in patients with chronic subdural hematoma (CSDH) were investigated by measuring and comparing the systemic and subdural fluid levels of cytokines.

Materials And Method: Cytokine values were analyzed in samples obtained during surgery of 56 adult patients who were operated on for unilateral CSDHs using a Multiplex antibody bead kit.

Results: There were significantly higher levels of the pro-inflammatory IL-2R (p = 0.

Chemokines as markers of local inflammation and angiogenesis in patients with chronic subdural hematoma: a prospective study.

Objective: The goal of this study was to investigate the chemokines CCL2, CXCL8, CXCL9 and CXCL10 as markers of the inflammatory responses in chronic subdural hematoma (CSDH).

Methods: Samples of peripheral venous blood and CSDH fluid (obtained during surgery) in 76 adult patients were prospectively analyzed. Chemokine values were assessed by a Multiplex antibody bead kit.

The effect of microvascular decompression in patients with multiple sclerosis and trigeminal neuralgia.

Background: Trigeminal neuralgia (TN) in patients with multiple sclerosis (MS) is thought to be caused by demyelinating plaques within the nerve root entry zone, the trigeminal nucleus, or the trigeminal tracts.

Objective: To review our experience of microvascular decompression (MVD) in patients with MS and symptomatic TN.

Methods: All first-time MVDs for symptomatic trigeminal neuralgia in patients with MS performed by the senior author during an 8-year period (1999-2007) in this department were reviewed.

Effect of microvascular decompression in trigeminal neuralgia patients with or without constant pain.

Objective: To study the effect of microvascular decompression (MVD) in trigeminal neuralgia (TN) patients with or without constant pain.

Methods: The study includes all first-time MVDs for facial pain performed by the senior author (PKE) during the 6-year period from 1999 to 2005 in the Department of Neurosurgery at the National Hospital. At the time of follow-up, pain relief was assessed using a standard mail questionnaire; those patients still having residual pain were further examined in the outpatient clinic or interviewed by phone.

[Treatment of intracranial aneurysms].

Background: The department of neurosurgery at the University Hospital of North Norway has treated intracranial aneurysms since 1986. This study was conducted in order to evaluate outcomes after the introduction of endovascular therapy in 2000.

Material And Methods: We included all patients treated for intracranial aneurysms during the years 1999 through 2002 in a retrospective, cross-sectional study.