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Normal pressure hydrocephalus

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https://www.readbyqxmd.com/read/28195509/reduced-subarachnoid-fluid-diffusion-in-enlarged-subarachnoid-spaces-of-infancy
#1
Matthew T Whitehead, Bonmyong Lee, Audrey McCarron, Stanley T Fricke, Gilbert Vezina
Background and purpose Enlargement of the subarachnoid spaces in infancy (ESSI) is a common cause of macrocephaly without proven explanation. We have observed subarachnoid diffusion to be decreased in these patients. We aim to quantify the diffusivity of ventricular and subarachnoid cerebrospinal fluid in ESSI patients, to determine if diffusion characteristics deviate from normocephalic infants, and to propose a unique mechanism for ESSI. Materials and methods 227 consecutive brain magnetic resonance exams from different macrocephalic children were retrospectively reviewed after institutional review board waiver...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28185313/improvement-in-lower-urinary-tract-symptoms-across-multiple-domains-following-ventriculoperitoneal-shunting-for-idiopathic-normal-pressure-hydrocephalus
#2
Sarah C Krzastek, Samuel P Robinson, Harold F Young, Adam P Klausner
AIMS: The purpose of this study was to evaluate the change in lower urinary tract symptoms following ventriculoperitoneal shunting in patients with idiopathic normal pressure hydrocephalus (iNPH). METHODS: Lower urinary tract symptoms in patients with new-onset iNPH were prospectively evaluated using validated questionnaires from the International Consultation on Incontinence to assess overactive bladder (ICIq-OAB), incontinence (ICIq-UI), and quality of life (ICIq-LUTqol), as well as the American Urological Association Symptom Score bother scale, prior to and following ventriculoperitoneal shunting for iNPH...
February 10, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28156249/utility-of-mri-based-disproportionately-enlarged-subarachnoid-space-hydrocephalus-scoring-for-predicting-prognosis-after-surgery-for-idiopathic-normal-pressure-hydrocephalus-clinical-research
#3
Narihide Shinoda, Osamu Hirai, Shinya Hori, Kazuyuki Mikami, Toshiaki Bando, Daisuke Shimo, Takahiro Kuroyama, Yoji Kuramoto, Masato Matsumoto, Yasushi Ueno
OBJECTIVE The presence of disproportionately enlarged subarachnoid space hydrocephalus (DESH) on brain imaging is a recognized finding of idiopathic normal pressure hydrocephalus (iNPH), but the features of DESH can vary across patients. The aim of this study was to evaluate the utility of MRI-based DESH scoring for predicting prognosis after surgery. METHODS In this single-center, retrospective cohort study, the DESH score was determined by consensus between a group of neurosurgeons, neurologists, and a neuroradiologist based on the preoperative MRI findings of the patients with suspected iNPH...
February 3, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28140607/phase-contrast-mri-csf-flow-measurements-for-the-diagnosis-of-normal-pressure-hydrocephalus-observer-agreement-of-velocity-versus-volume-parameters
#4
Ahmed Mohamed Tawfik, Lamiaa Elsorogy, Rabab Abdelghaffar, Ayman Abdel Naby, Ibrahim Elmenshawi
OBJECTIVE: Manual segmentation of the aqueduct for CSF flow analysis may induce measurement variability. The aim of our study was to assess observer agreement of manual segmentation and to compare the repeatability and accuracy of different flow parameters in differentiating normal-pressure hydrocephalus (NPH) from brain atrophy. SUBJECTS AND METHODS: Thirty-two subjects were included and were divided into three groups: control, NPH, and brain atrophy. Subjects underwent phase-contrast MRI...
January 31, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28132644/a-change-in-brain-white-matter-after-shunt-surgery-in-idiopathic-normal-pressure-hydrocephalus-a-tract-based-spatial-statistics-study
#5
Shigenori Kanno, Makoto Saito, Tomohito Kashinoura, Yoshiyuki Nishio, Osamu Iizuka, Hirokazu Kikuchi, Masahito Takagi, Masaki Iwasaki, Shoki Takahashi, Etsuro Mori
BACKGROUND: The aim of this study was to elucidate changes in cerebral white matter after shunt surgery in idiopathic normal pressure hydrocephalus (INPH) using diffusion tensor imaging (DTI). METHODS: Twenty-eight consecutive INPH patients whose symptoms were followed for 1 year after shunt placement and 10 healthy control (HC) subjects were enrolled. Twenty of the initial 28 INPH patients were shunt-responsive (SR) and the other 8 patients were non-responsive (SNR)...
January 30, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/28127435/dementia-gait-disturbance-and-urinary-incontinence-in-a-patient-with-pulmonary-sarcoidosis
#6
Gonzalo Labarca, Romina Ramirez, Ximena Monsalve, Isabel Mira-Avendano
Hydrocephalus is an uncommon presentation of neurosarcoidosis. We discuss the case of a 67-year-old woman with a prior diagnosis of hypothyroidism, systemic hypertension, and lung sarcoidosis who presented with a 1-month history of progressive impairment of consciousness leading to prostration and loss of sphincter control. At admission, patient was febrile with altered speech and without focalization. Laboratory results showed leucocytosis and mild anaemia. Cerebrospinal fluid (CSF) analysis was characterized by mild elevated protein level, increased cell count, normal glucose and adenosine deaminase (ADA), negative cytology, and no bacterial isolations...
September 2016: Respirology Case Reports
https://www.readbyqxmd.com/read/28120085/neuropsychological-assessment-in-the-differential-diagnosis-of-idiopathic-normal-pressure-hydrocephalus-an-important-tool-for-the-maintenance-and-restoration-of-neuronal-and-neuropsychological-functions
#7
Carmela Sindorio, Rosaria Viola Abbritti, Giovanni Raffa, Stefano M Priola, Antonino Germanò, Massimiliano Visocchi, Maria C Quattropani
Idiopathic normal pressure hydrocephalus (iNPH) is a progressive clinical syndrome that includes gait disturbances, urinary incontinence, and cognitive impairment. iNPH shows similarities to other neurodegenerative disorders, primarily Alzheimer's Disease (AD). Definition of the neuropsychological profile of iNPH and the qualitative analysis of systematic mistakes made in cognitive tests could represent a valid method for systematizing possible specific markers of iNPH dementia and differentiating it from other dementias...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28113783/the-role-of-a-dynamic-craniospinal-compliance-in-nph-a-review-and-future-challenges
#8
Christine Goffin, Steffen Leonhardt, Klaus Radermacher
Despite the normal mean intracranial pressure (ICP) in normal pressure hydrocephalus (NPH) the cerebral ventricles enlarge. Many hypotheses exist, which have lately been investigated in simulation. These can be grouped into one of the two categories.
October 24, 2016: IEEE Reviews in Biomedical Engineering
https://www.readbyqxmd.com/read/28089835/supplementary-tests-in-idiopathic-normal-pressure-hydrocephalus-a-single-center-experience-with-a-combined-lumbar-infusion-test-and-tap-test
#9
F Raneri, M A S Zella, A Di Cristofori, B Zarrino, M Pluderi, D Spagnoli
INTRODUCTION: Lumbar infusion test (LIT) and Tap Test (TT) have previously been described for the diagnosis and the selection of appropriate surgical candidates in idiopathic normal pressure hydrocephalus (iNPH) MATERIALS AND METHODS: We retrospectively reviewed 81 consecutive patients with clinical diagnosis of iNPH selected for supplementary testing. Clinical evaluation was scored with the Japanese Grading Scale for Normal Pressure Hydrocephalus (JGSNPH), the Global Deterioration Score (GDS) and the modified Rankin Scale (mRS)...
January 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28089743/multichannel-visual-evoked-potentials-in-the-assessment-of-visual-pathways-in-children-with-marked-brain-abnormalities
#10
Sian E Handley, Alki C Liasis
PURPOSE: To demonstrate how multichannel visual evoked potentials (VEPs) can provide quantitative measures of visual function in in children with marked cortical anatomy abnormalities. METHODS: Four children with marked brain pathology (2 holoprosencephaly, 2 giant interhemispheric cysts with hydrocephalus) underwent pattern reversal and flash VEP recordings from 16 equally distributed electrodes. Voltage maps of the major VEP components were constructed, and their distributions were compared to the magnetic resonance imaging (MRI) findings...
January 9, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28063896/clinical-correlation-of-abnormal-findings-on-magnetic-resonance-elastography-in-idiopathic-normal-pressure-hydrocephalus
#11
Avital Perry, Christopher S Graffeo, Nikoo Fattahi, Mona M ElSheikh, Nealey Cray, Arvin Arani, Richard L Ehman, Kevin J Glaser, Armando Manduca, Fredric B Meyer, John Huston
BACKGROUND: Idiopathic normal pressure hydrocephalus (iNPH) is ventriculomegaly syndrome characterized by dementia, urinary incontinence, and gait disturbance, which is potentially reversible following ventriculoperitoneal shunting (VPS). Magnetic resonance elastography (MRE) is an evolving imaging technology that noninvasively measures tissue viscoelasticity. OBJECTIVE: We studied iNPH patients using MRE prior to shunting, compared them to normal controls, and analyzed associations between MRE findings and clinical features, as a pilot assessment of MRE in iNPH...
January 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28062721/vascular-risk-factors-in-inph-a-prospective-case-control-study-the-inph-crash-study
#12
Hanna Israelsson, Bo Carlberg, Carsten Wikkelsö, Katarina Laurell, Babar Kahlon, Göran Leijon, Anders Eklund, Jan Malm
OBJECTIVE: To assess the complete vascular risk factor (VRF) profile of idiopathic normal pressure hydrocephalus (INPH) using a large sample of representative patients with INPH and population-based controls to determine the extent to which vascular disease influences INPH pathophysiology. METHODS: All patients with INPH who underwent shunting in Sweden in 2008-2010 were compared to age- and sex-matched population-based controls. Inclusion criteria were age 60-85 years and no dementia...
January 6, 2017: Neurology
https://www.readbyqxmd.com/read/28061484/cerebrospinal-fluid-lumbar-tapping-utilization-for-suspected-ventriculoperitoneal-shunt-under-drainage-malfunctions
#13
Jong-Beom Lee, Ho-Young Ahn, Hong-Jae Lee, Ji-Ho Yang, Jin-Seok Yi, Il-Woo Lee
OBJECTIVE: The diagnosis of shunt malfunction can be challenging since neuroimaging results are not always correlated with clinical outcomes. The purpose of this study was to evaluate the efficacy of a simple, minimally invasive cerebrospinal fluid (CSF) lumbar tapping test that predicts shunt under-drainage in hydrocephalus patients. METHODS: We retrospectively reviewed the clinical and radiological features of 48 patients who underwent routine CSF lumbar tapping after ventriculoperitoneal shunt (VPS) operation using a programmable shunting device...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28052454/estimated-ventricle-size-using-evans-index-reference-values-from-a-population-based-sample
#14
D Jaraj, K Rabiei, T Marlow, C Jensen, I Skoog, C Wikkelsø
BACKGROUND AND PURPOSE: Evans index is an estimate of ventricular size used in the diagnosis of idiopathic normal-pressure hydrocephalus (iNPH). Values >0.3 are considered pathological and are required by guidelines for the diagnosis of iNPH. However, there are no previous epidemiological studies on Evans index, and normal values in adults are thus not precisely known. We examined a representative sample to obtain reference values and descriptive data on Evans index. METHODS: A population-based sample (n = 1235) of men and women aged ≥70 years was examined...
January 4, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28017216/olfactory-ability-in-normal-pressure-hydrocephalus-as-compared-to-alzheimer-s-disease-and-healthy-controls
#15
Jesse S Passler, Richard L Doty, Michelle C Dolske, Phillip G St Louis, Cherlynn Basignani, Julie W Pepe, Sergey Bushnev
OBJECTIVES: Normal pressure hydrocephalus (NPH) is a treatable neurological disorder that appears in older adults, lacks specific diagnostic criteria, and resembles symptoms seen in Alzheimer's disease (AD). Presently, differentiating NPH from AD in the early stages of symptom presentation remains difficult. This study established whether olfactory testing may be useful in this regard. In addition, we determined whether olfactory function of NPH patients differed before and after extended lumbar drainage (ELD), as well as six months after surgical implantation of a ventriculoperitoneal (VP) shunt...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27981690/measuring-changes-in-the-optic-nerve-sheath-diameter-in-patients-with-idiopathic-normal-pressure-hydrocephalus-a-useful-diagnostic-supplement-to-spinal-tap-tests
#16
M Ertl, R Aigner, M Krost, Z Karnasová, K Müller, M Naumann, F Schlachetzki
BACKGROUND AND PURPOSE: Cerebrospinal fluid (CSF) removal improves clinical symptoms of many patients with idiopathic normal-pressure hydrocephalus (iNPH). The aim of this study was to investigate the correlation of changes in the optic nerve sheath diameter (ONSD) with patient responses to CSF removal. METHODS: Transorbital ultrasonography was performed to obtain ONSD measurements in 31 patients with iNPH before and after lumbar puncture. Measurements were obtained while patients were supine and upright...
December 15, 2016: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/27965058/apathy-and-higher-level-of-gait-control-in-normal-pressure-hydrocephalus
#17
Gilles Allali, Magali Laidet, Stéphane Armand, Arnaud Saj, Paul Krack, Frédéric Assal
Apathy represents the most common behavioral disturbance in patients with suspicion of idiopathic normal pressure hydrocephalus (iNPH) and has a major impact on quality of life. However, its impact on gait -the hallmark motor disturbance of iNPH - has never been studied yet. This study aims to evaluate the impact of apathy on higher level of gait control in patients with suspicion of iNPH. Stride time variability (STV), a marker of higher level of gait control, was quantified during usual walking (single task) and during walking while performing simultaneously cognitive tasks (dual task) of counting and verbal fluency...
December 11, 2016: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/27941913/choroidal-fissure-acts-as-an-overflow-device-in-cerebrospinal-fluid-drainage-morphological-comparison-between-idiopathic-and-secondary-normal-pressure-hydrocephalus
#18
Shigeki Yamada, Masatsune Ishikawa, Yasushi Iwamuro, Kazuo Yamamoto
To clarify the pathogenesis of two different types of adult-onset normal-pressure hydrocephalus (NPH), we investigated cerebrospinal fluid distribution on the high-field three-dimensional MRI. The subarachnoid spaces in secondary NPH were smaller than those in the controls, whereas those in idiopathic NPH were of similar size to the controls. In idiopathic NPH, however, the basal cistern and Sylvian fissure were enlarged in concurrence with ventricular enlargement towards the z-direction, but the convexity subarachnoid space was severely diminished...
December 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27932748/-hydrocephalus-associated-with-small-clinoidal-meningioma-that-resolved-after-tumor-removal-a-case-report
#19
Hidemoto Fujiwara, Toyotaka Aiba, Toru Watanabe, Tetsuya Hiraishi, Yukihiko Fujii
PURPOSE: Small meningiomas causing hydrocephalus without obstruction of the ventricular system are rare. Herein, we report a case of small clinoidal meningioma with communicating hydrocephalus, which resolved after tumor removal. CASE PRESENTATION: A 70-year-old woman presented with a 1-month history of memory disturbance followed by gait disturbance. MR images revealed a right clinoidal meningioma, 2 cm in diameter, and dilatation of the ventricles suggesting communicating hydrocephalus...
December 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27917383/hakim-adams-syndrome-an-unusual-cause-of-reversible-postoperative-coma
#20
Mohamed Saleh, Marine Bouex
We report the case of a 72-year-old patient presenting in our ICU with persistent postoperative coma in a context of recent unexplored neurological dysfunction. Detailed medical history taking from the patient's family revealed he recently suffered from gait instability, urinary incontinence, and slight cognitive impairment. These constituted the clinical triad of normal pressure hydrocephalus syndrome. The presence of normal cerebrospinal fluid (CSF) pressure and distinctive radiological findings confirmed the diagnosis of normal pressure hydrocephalus or Hakims-Adams syndrome...
2016: Frontiers in Medicine
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