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Normal pressure hydrocephalus

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https://www.readbyqxmd.com/read/28628634/protein-signature-in-cerebrospinal-fluid-and-serum-of-alzheimer-s-disease-patients-the-case-of-apolipoprotein-a-1-proteoforms
#1
Chiara Fania, Beatrice Arosio, Daniele Capitanio, Enrica Torretta, Cristina Gussago, Evelyn Ferri, Daniela Mari, Cecilia Gelfi
In the diagnosis of Alzheimer's disease (AD) total tau (T-tau), tau phosphorylated at threonine 181 (P-tau181), and the 42 amino acid isoform of alpha β-amyloid (Aβ) are well established surrogate CSF markers. However, there is a constant need for new diagnostic markers to identify the disease at a very early stage. The identification of new molecules for AD diagnosis and monitoring in CSF is hampered by several "confounding" factors including intra- and inter-individual, pre-analytical and analytical variabilities...
2017: PloS One
https://www.readbyqxmd.com/read/28627088/astrogliosis-and-impaired-aquaporin-4-and-dystrophin-systems-in-idiopathic-normal-pressure-hydrocephalus
#2
Per Kristian Eide, Hans-Arne Hansson
AIMS: Idiopathic normal pressure hydrocephalus (iNPH) is one subtype of dementia that may improve following drainage of cerebrospinal fluid (CSF). This prospective observational study explored whether expression of the water channel aquaporin-4 (AQP4) and the anchoring molecule dystrophin 71 (Dp71) are altered at astrocytic perivascular endfeet and in adjacent neuropil of iNPH patient. Observations were related to measurements of pulsatile and static intracranial pressure (ICP). METHODS: The study included iNPH patients undergoing overnight monitoring of the pulsatile/static ICP, in whom a biopsy was taken from the frontal cerebral cortex during placement of the ICP sensor...
June 19, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28607820/incidental-choroid-plexus-papilloma-in-a-child-a-difficult-decision
#3
Avra S Laarakker, Jonathan Nakhla, Andrew Kobets, Rick Abbott
BACKGROUND: Choroid plexus tumors (CPT) in the pediatric population are usually discovered in symptomatic patients often with symptoms of increased intracranial pressure, with hydrocephalus as the most common presentation, along with seizures, subarachnoid hemorrhage, or focal neurological deficit. Most CPTs are found to be benign choroid plexus papillomas (CPP), whereas a small number are intermediate and malignant choroid plexus carcinomas (CPC). Total surgical resection is the established definitive treatment for symptomatic CPP...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28605723/a-combined-cognitive-and-gait-quantification-to-identify-normal-pressure-hydrocephalus-from-its-mimics-the-geneva-s-protocol
#4
Gilles Allali, Magali Laidet, Stéphane Armand, Shahan Momjian, Bruno Marques, Arnaud Saj, Frédéric Assal
OBJECTIVES: Idiopathic normal pressure hydrocephalus (iNPH) is very prevalent in aging, underdiagnosed, and represents a rare cause of reversible neurological condition. The clinical triad of iNPH - gait, cognitive and urinary symptoms - and its neuroradiological features (i.e. ventriculomegaly) are not specific and found a various neurodegenerative and/or vascular conditions. We present our iNPH standardized protocol at the Geneva University Hospitals involving a multispecialty team of behavioral neurologists, neurosurgeons, neuropsychologists, engineers, and physical therapists...
June 6, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28592739/a-case-of-idiopathic-normal-pressure-hydrocephalus-in-an-elder-diabetic-patient
#5
Kyoko Kawakami, Hiroshi Yoshino, Hiroyuki Igarashi, Yoshiyuki Chiba, Gen Yoshino, Takahisa Hirose
The clinical entity idiopathic normal pressure hydrocephalus (iNPH) is characterized by dementia, urinary incontinence, gait ataxia. An 80-year old man with a past history of Type 2 diabetes mellitus admitted to our hospital. Combination of twice Aspart and Aspart premixed30/70 insulin were used. Although, he was unable to inject insulin by himself recently. On physical examination, he walked in a mildly wide based manner. According to his family, urinary incontinence was existed. Laboratory data were as follows: Postrandial blood glucose 243 mg/dl and glycated hemoglobin 8...
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/28587660/recommendations-for-cerebrospinal-fluid-collection-for-the-analysis-by-elisa-of-neurogranin-trunc-p75-%C3%AE-synuclein-and-total-tau-in-combination-with-a%C3%AE-1-42-a%C3%AE-1-40
#6
Hugo Vanderstichele, Leentje Demeyer, Shorena Janelidze, Els Coart, Erik Stoops, Kimberley Mauroo, Victor Herbst, Cindy François, Oskar Hansson
BACKGROUND: The pathophysiology of neurodegeneration is complex. Its diagnosis requires an early identification of sequential changes in several hallmarks in the brains of affected subjects. The presence of brain pathology can be visualized in the cerebrospinal fluid (CSF) by protein profiling. It is clear that the field of Alzheimer's disease (AD) will benefit from an integration of algorithms including CSF concentrations of individual proteins, especially as an aid in clinical decision-making or to improve patient enrolment in clinical trials...
June 6, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28582688/a-simplified-pressure-adjustment-clinical-pathway-for-programmable-valves-in-nph-patients
#7
Tracy S Ma, Nikhil Sharma, M Sean Grady
OBJECTIVE: The goal of this study is to provide a clinical pathway for shunt valve adjustment in the treatment of normal pressure hydrocephalus (NPH) patients. PATIENT AND METHODS: The authors conducted a single-center retrospective study of 102 patients (mean age 74 years, 66 men, 36 women) diagnosed with NPH. In all cases, a Medtronic Strata Adjustable Pressure valve set initially at 1.5 was implanted. Outcome was based on the clinical status of the patient at the last contact point with the senior author...
May 30, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28578116/the-timed-up-and-go-test-as-a-diagnostic-criterion-in-normal-pressure-hydrocephalus
#8
Gabriel André Silva Mendes, Matheus Fernandes de Oliveira, Fernando Campos Gomes Pinto
INTRODUCTION: Normal Pressure Hydrocephalus (NPH) is a disease characterized by gait disturbance, urinary incontinence and dementia. Our objectives were to define an average value of the test for the population, check the specificity and test sensitivity as evaluation criteria and diagnostic testing and correlate with other already used more frequently. METHODS: A study conducted at the Neurosurgery Division of the Hospital do Servidor Público Estadual de São Paulo in which a group of 30 patients with PNH was submitted to the Mini Mental State Test Examination, Time Up and Go (TUG) and Japanese scale for NPH, prior to the Tap Test 3 hours and 72 hours after the Tap Test...
May 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28570101/mr-elastography-demonstrates-unique-regional-brain-stiffness-patterns-in-dementias
#9
Mona ElSheikh, Arvin Arani, Avital Perry, Bradley F Boeve, Fredric B Meyer, Rodolfo Savica, Richard L Ehman, John Huston
OBJECTIVE: The purpose of this study was to investigate age-corrected brain MR elastography (MRE) findings in four dementia cohorts (Alzheimer disease, dementia with Lewy bodies, frontotemporal dementia, and normal pressure hydrocephalus) and determine the potential use as a differentiating biomarker in dementia subtypes. SUBJECTS AND METHODS: Institutional review board approval and written informed consent were obtained to perform MRE on 84 subjects: 20 patients with normal pressure hydrocephalus, eight with Alzheimer disease, five with dementia with Lewy bodies, five with frontotemporal dementia, and 46 cognitively normal control subjects...
June 1, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28557010/rapid-amyloid-%C3%AE-oligomer-and-protofibril-accumulation-in-traumatic-brain-injury
#10
Sami Abu Hamdeh, Erik Rollman Waara, Christer Möller, Linda Söderberg, Hans Basun, Irina Alafuzoff, Lars Hillered, Lars Lannfelt, Martin Ingelsson, Niklas Marklund
OBJECTIVE: Deposition of amyloid-β (Aβ) is central to Alzheimer's disease (AD) pathogenesis and associated with progressive neurodegeneration in traumatic brain injury (TBI). We analysed predisposing factors for Aβ deposition including monomeric Aβ40, Aβ42 and Aβ oligomers/protofibrils, Aβ species with pronounced neurotoxic properties, following human TBI. METHODS: Highly selective ELISAs were used to analyse N-terminally intact and truncated Aβ40 and Aβ42, as well as Aβ oligomers/protofibrils, in human brain tissue, surgically resected from severe TBI patients (n=12; mean age 49...
May 29, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28554416/treatment-of-older-parkinson-s-disease
#11
Abhishek Lenka, Chandrasekharapillai Padmakumar, Pramod K Pal
Parkinson's disease (PD) is the second most common neurodegenerative disorder after Alzheimer's disease. The prevalence of PD increases with age. The spectrum of clinical features, the rate of progression of the disease, the burden of nonmotor symptoms, and the response to medications are different in older patients with PD from the relatively younger patients. Management of symptoms of PD in older patients is challenging because of possible existence of several age-related systemic illness. While dealing with older patients, it is crucial not to attribute all the physical symptoms to PD...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28541891/critical-closing-pressure-during-controlled-increase-in-intracranial-pressure-comparison-of-three-methods
#12
Katarzyna Kaczmarska, Magdalena Kasprowicz, Agnieszka Uryga, Leanne Calviello, Georgios Varsos, Zofia Czosnyka, Marek Czosnyka
Critical closing pressure (CrCP) is the arterial blood pressure (ABP) threshold, below which small arterial vessels collapse and cerebral blood flow ceases. Here we aim to compare three methods for CrCPestimation in scenario of a controlled increase in intracranial pressure (ICP), induced by infusion tests performed in patients with suspected normal pressure hydrocephalus (NPH). METHODS: Computer recordings of directly-measured ICP, ABP and transcranial Doppler cerebral blood flow velocity (CBFV), from 37 NPH patients undergoing infusion tests, were retrospectively analyzed...
May 24, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28528738/our-initial-experience-with-ventriculo-epiplooic-shunt-in-treatment-of-hydrocephalus-in-two-centers
#13
Valentin Titus Grigorean, Aurelia Mihaela Sandu, Mihai Popescu, Ioan Stefan Florian, Cristian Dumitru Lupascu, Corina Lupascu Ursulescu
INTRODUCTION: Hydrocephalus represents impairment in cerebrospinal fluid (CSF) dynamics. If the treatment of hydrocephalus is considered difficult, the repeated revisions of ventriculo-peritoneal (VP) shunts are even more challenging. OBJECTIVE: The aim of this article is to evaluate the efficiency of ventriculo-epiplooic (VEp) shunt as a feasible alternative in hydrocephalic patients. MATERIAL AND METHODS: A technical modification regarding the insertion of peritoneal catheter was imagined: midline laparotomy 8-10cm long was performed in order to open the peritoneal cavity; the great omentum was dissected between its two layers; we placed the distal end of the catheter between the two epiplooic layers; a fenestration of 4cm in diameter into the visceral layer was also performed...
May 11, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28507532/spectral-domain-optical-coherence-tomography-as-a-new-diagnostic-marker-for-idiopathic-normal-pressure-hydrocephalus
#14
Joana M Afonso, Manuel Falcão, Frank Schlichtenbrede, Fernando Falcão-Reis, Sérgio Estrela Silva, Till M Schneider
PURPOSE: Characterized by a progressive onset of gait disturbances, dementia, and urinary incontinence, idiopathic normal pressure hydrocephalus (iNPH) is considered a rare, but under-diagnosed disease. Non-invasive diagnostic markers are still insufficient to enable the diagnosis of iNPH with certainty and yet early treatment with ventriculoperitoneal (VP) shunting can reverse symptoms and stop disease progression. Vascular circulation abnormalities in iNPH may be reflected by changes in subfoveal and peripapillary choroidal thickness (PPChT)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28502690/the-clinical-effect-of-postoperative-hyperbaric-oxygen-therapy-on-idiopathic-normal-pressure-hydrocephalus-a-retrospective-and-comparative-analysis-of-61-patients-with-ventriculoperitoneal-shunt
#15
Lin Yang, Xingdong Wang, Yuping Li, Lang Chen, Zhengcun Yan, Lei She, Jun Dong
PURPOSE: The aim of the study was to examine the clinical effect of postoperative hyperbaric oxygen (HBO) therapy on symptoms and signs in the ventriculoperitoneal (VP) shunt insertion treatment of idiopathic normal pressure hydrocephalus (iNPH). MATERIALS AND METHODS: We conducted a retrospective analysis of 61 patients treated at our institution for iNPH since 2007. Patients were stratified into 2 groups according to undergoing pure VP shunt with gravitational valves (Group 1) or combined with postoperative HBO therapy (Group 2)...
May 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28498794/diagnosis-of-normal-pressure-hydrocephalus-use-of-traditional-measures-in-the-era-of-volumetric-mr-imaging
#16
Nityanand Miskin, Hersh Patel, Ana M Franceschi, Benjamin Ades-Aron, Alexander Le, Brianna E Damadian, Christian Stanton, Yafell Serulle, James Golomb, Oded Gonen, Henry Rusinek, Ajax E George
Purpose To assess the diagnostic performance of the callosal angle (CA) and Evans index (EI) measures and to determine their role versus automated volumetric methods in clinical radiology. Materials and Methods Magnetic resonance (MR) examinations performed before surgery (within 1-5 months of the MR examination) in 36 shunt-responsive patients with normal-pressure hydrocephalus (NPH; mean age, 75 years; age range, 58-87 years; 26 men, 10 women) and MR examinations of age- and sex-matched patients with Alzheimer disease (n = 34) and healthy control volunteers (n = 36) were studied...
May 10, 2017: Radiology
https://www.readbyqxmd.com/read/28489610/invasive-and-noninvasive-means-of-measuring-intracranial-pressure-a-review
#17
Xuan Zhang, Joshua Medow, Bermans Iskandar, Fa Wang, Mehdi Shokoueinejad, Joyce Koueik, John Webster
Measurement of intracranial pressure (ICP) can be invaluable in the management of critically ill patients. Cerebrospinal fluid (CSF) is produced by the choroid plexus in the brain ventricles (a set of communicating chambers), after which it circulates through the different ventricles and exits into the subarachnoid space (SAS) around the brain, where it is reabsorbed into the venous system. If the fluid does not drain out of the brain or get reabsorbed, the ICP increases, which may lead to brain damage or death...
May 10, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28486988/cerebrospinal-fluid-a%C3%AE-42-t-tau-and-p-tau-levels-in-the-differential-diagnosis-of-idiopathic-normal-pressure-hydrocephalus-a-systematic-review-and-meta-analysis
#18
REVIEW
Zhongyun Chen, Chunyan Liu, Jie Zhang, Norman Relkin, Yan Xing, Yanfeng Li
OBJECTIVES: The purpose of this systematic review and meta-analysis was to evaluate the performance of cerebrospinal fluid (CSF) beta amyloid 42 (Aβ42), total tau (t-tau), and phosphorylated tau (p-tau) as potential diagnostic biomarkers for idiopathic normal-pressure hydrocephalus (iNPH) and to assess their utility indistinguishing patients with iNPH from those with Alzheimer disease (AD) and healthy normal controls. METHODS: Studies were identified by searching PubMed, Embase, the Cochrane Library, Web of Science, Chinese National Knowledge Infrastructure (CNKI), Wanfang Chinese Periodical Database, VIP Chinese database, and Chinese Bio-medicine Database (CBM) before August 2016...
May 10, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/28484529/secondary-communicating-hydrocephalus-management-by-implantation-of-external-ventricular-shunt-and-minimal-gradual-increase-of-cerebrospinal-fluid-pressure
#19
Keyvan Mostofi, Madjid Samii
BACKGROUND: This paper presents a new management strategy explaining the process used by implantation of external ventricular drainage (EVD) and very gradual increase of intracranial pressure for treatment of acute hydrocephalus. During the last 30 years' experience in professional practice, the senior author (M.S.) discovered that there are some options of regulations between cerebral spinal fluid (CSF) production and resorption. This theory shows that minimal continuous increase of the CSF pressure as long as the patient general neurological condition is unchanged and appears as normal can lead to definitive treatment of hydrocephalus without needing to set a shunt...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28484522/cerebrospinal-fluid-dynamics-study-in-communicating-hydrocephalus
#20
Vengalathur Ganesan Ramesh, Vidhya Narasimhan, Chandramouli Balasubramanian
CONTEXT: Communicating hydrocephalus often poses a challenge in diagnosis and management decisions. AIMS: The objective of this study is to measure the opening pressure (Po), pressure volume index (PVI), and cerebrospinal fluid outflow resistance (Rout), in patients with communicating hydrocephalus using bolus lumbar injection method and to evaluate its diagnostic and prognostic value. MATERIALS AND METHODS: The study was conducted in 50 patients with communicating hydrocephalus, including normal pressure hydrocephalus (NPH) (19), post-meningitic hydrocephalus (23) and post-traumatic hydrocephalus (8)...
April 2017: Asian Journal of Neurosurgery
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