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idiopathic intracranial hypertension

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https://www.readbyqxmd.com/read/29756721/-pseudotumor-cerebri-associated-with-hypovitaminosis-a-b6-and-d-about-two-cases
#1
Ana M Silva, José Méndez, Marisol Toma, Alejandra González, Federico Bois
Idiopathic endocranial hypertension is infrequently associated with hypovitaminosis A and D. The case of an 8-year-old female with 24-hour blurred vision and bilateral papilledema is presented. Nuclear magnetic resonance was normal. Opening pressure of cerebrospinal fluid: 260 mmH2O. She presented vitamin A and D deficiency and started replacement therapy. The second case corresponds to a 12-year-old male with fever and odynophagia of 3 days. History of glomerulonephritis and overweight. He had bipalpebral edema and papilledema...
June 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29754068/contrast-enhanced-magnetic-resonance-venography-in-the-follow-up-evaluation-of-idiopathic-intracranial-hypertension-patients-with-cerebral-venous-sinus-stenting
#2
Srikanth R Boddu, Pierre Gobin, Cristiano Oliveira, Marc Dinkin, Athos Patsalides
PURPOSE: Role of contrast-enhanced magnetic resonance venography (CE-MRV) in the follow-up of venous sinus stenting (VSS) among the idiopathic intracranial hypertension (IIH) patients. MATERIALS AND METHODS: Prospective evaluation of VSS patients with CE-MRV, DRCV and DSA for follow-up of clinically suspected recurrent stenosis. CE-MRV was evaluated against DRCV and DSA. RESULTS: Ten patients with twelve episodes of recurrent symptoms. Sensitivity, specificity, PPV, NPV and accuracy of the CE-MRV for the detection of recurrent stenosis were: 100%, 33...
May 1, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29740393/comparison-of-ocular-ultrasonography-and-magnetic-resonance-imaging-for-detection-of-increased-intracranial-pressure
#3
David F Patterson, Mai-Lan Ho, Jacqueline A Leavitt, Nathan J Smischney, Sara E Hocker, Eelco F Wijdicks, David O Hodge, John Jing-Wei Chen
Background/aims: To evaluate and compare the performance of ocular ultrasonography (US) and magnetic resonance imaging (MRI) for detecting increased intracranial pressure (ICP) in patients with idiopathic intracranial hypertension (IIH). Methods: Twenty-two patients with papilledema from IIH and 22 with pseudopapilledema were prospectively recruited based on funduscopic and clinical findings. Measurements of optic nerve sheath diameters (ONSDs) 3 mm behind the inner sclera were performed on B-scan US and axial T2-weighted MRI examinations...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29736424/value-of-double-track-sign-in-differentiating-primary-from-thrombosed-transverse-sinus-stenosis-in-patients-presumed-to-have-idiopathic-intracranial-hypertension
#4
Nasser M Aldossary
Background: Idiopathic intracranial hypertension (IIH) is primarily a disorder of young obese women of unknown etiology. The clinical presentation of IIH is similar to that of sinus thrombosis. The incidence of transverse sinus stenosis (TSS) reaches up to 90% of patients with IIH compared with normal subjects, and venous sinus thrombosis was reported in 11.4% of patients previously diagnosed as having IIH. Patients with thrombosis showed an abnormal region of double- track pattern on gadolinium (Gd) - enhanced T1WI within the dural sinus...
March 2018: ENeurologicalSci
https://www.readbyqxmd.com/read/29724759/csf-pressure-change-in-relation-to-opening-pressure-and-csf-volume-removed
#5
B Griffith, T Capobres, S C Patel, H Marin, A Katramados, L M Poisson
BACKGROUND AND PURPOSE: Idiopathic intracranial hypertension is a complex neurologic disorder resulting from increased intracranial pressure. Our aim was to determine whether a correlation exists between the CSF pressure-volume relationship, specifically the craniospinal elastance and pressure-volume index, in patients with idiopathic intracranial hypertension and whether opening pressure affects this relationship. MATERIALS AND METHODS: Lumbar punctures performed for suspected idiopathic intracranial hypertension from 2006 to 2017 were identified...
May 3, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29721718/an-up-to-date-review-of-pseudotumor-cerebri-syndrome
#6
REVIEW
John Glenn Burkett, Jessica Ailani
PURPOSE OF REVIEW: Idiopathic intracranial hypertension (IIH), pseudotumor cerebri syndrome (PTCS), and benign intracranial hypertension are all terms that have been used for a neurologic syndrome consisting of elevated intracranial pressure (ICP), headache and vision loss without mass lesion or underlying infection or malignancy. In this review article, categorization, diagnostic criteria, symptom management strategies, and disease treatment options for pseudotumor cerebri syndrome will be discussed...
May 2, 2018: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29701549/letter-to-the-editor-the-causative-role-of-sinus-stenosis-in-idiopathic-intracranial-hypertension
#7
Roberto De Simone, Angelo Ranieri
No abstract text is available yet for this article.
April 27, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29688071/idiopathic-intracranial-hypertension-and-bariatric-surgery
#8
Halil Onder
No abstract text is available yet for this article.
April 24, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29674324/indications-for-the-performance-of-intracranial-endovascular-neurointerventional-procedures-a-scientific-statement-from-the-american-heart-association
#9
REVIEW
Clifford J Eskey, Philip M Meyers, Thanh N Nguyen, Sameer A Ansari, Mahesh Jayaraman, Cameron G McDougall, J Kevin DeMarco, William A Gray, David C Hess, Randall T Higashida, Dilip K Pandey, Constantino Peña, Hermann C Schumacher
Intracranial endovascular interventions provide effective and minimally invasive treatment of a broad spectrum of diseases. This area of expertise has continued to gain both wider application and greater depth as new and better techniques are developed and as landmark clinical studies are performed to guide their use. Some of the greatest advances since the last American Heart Association scientific statement on this topic have been made in the treatment of ischemic stroke from large intracranial vessel occlusion, with more effective devices and large randomized clinical trials showing striking therapeutic benefit...
April 19, 2018: Circulation
https://www.readbyqxmd.com/read/29626002/evaluating-off-label-uses-of-acetazolamide
#10
REVIEW
Megan A Van Berkel, Jessica L Elefritz
PURPOSE: Current off-label uses of acetazolamide in hospitalized patients are reviewed. SUMMARY: Acetazolamide is a carbonic anhydrase inhibitor typically used for indications including epilepsy, glaucoma, edema, and altitude sickness but it may be prescribed in hospitalized patients for off-label indications. It inhibits carbonic anhydrase, which leads to reduced hydrogen ion secretion in the proximal renal tubule, resulting in increased bicarbonate and cation excretion and causing urinary alkalization and diuresis...
April 15, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29619550/perspectives-on-diagnosis-and-management-of-adult-idiopathic-intracranial-hypertension
#11
Irini Chatziralli, Panagiotis Theodossiadis, George Theodossiadis, Ioannis Asproudis
PURPOSE: The purpose of this review is to shed light into the diagnostic challenges regarding idiopathic intracranial hypertension (IIH), giving more emphasis to the role of optical coherence tomography (OCT) in IIH, while it also presents recent advances in the management of IIH. METHODS: A literature search in PubMed was performed for studies about the diagnosis and management of IIH published before June 30, 2017. Then, a comprehensive review of the eligible studies and the relevant references was performed...
April 4, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29608535/genetic-survey-of-adult-onset-idiopathic-intracranial-hypertension
#12
Markus H Kuehn, Rajashree Mishra, Benjamin E Deonovic, Kimberly N Miller, Shana E McCormack, Grant T Liu, Mark J Kupersmith, Michael Wall
BACKGROUND: Idiopathic intracranial hypertension (IIH) is a condition characterized by increased intracranial pressure of unknown cause. IIH has been shown to be associated with female sex as well as obesity. This genome-wide association study was performed to determine whether genetic variants are associated with this condition. METHODS: We analyzed the chromosomal DNA of 95 patients with IIH enrolled in the Idiopathic Intracranial Hypertension Treatment Trial and 95 controls matched on sex, body mass index, and self-reported ethnicity...
March 30, 2018: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29565728/optic-nerve-sheath-fenestration-a-revised-lateral-approach-for-nerve-access
#13
Nathan W Blessing, David T Tse
Idiopathic intracranial hypertension (IIH), also known as pseudotumor cerebri, describes a disease of poorly understood pathophysiology with a specific set of signs and symptoms including potentially irreversible and blinding visual loss. Optic nerve sheath fenestration (ONSF) is a well-described surgical treatment for patients with IIH and progressive visual loss despite maximally tolerated medical therapy. A number of optic nerve access procedures have been described including medial transconjunctival, superomedial lid crease, and lateral orbitotomy with and without bone takedown...
March 22, 2018: Orbit
https://www.readbyqxmd.com/read/29563954/evaluating-the-fat-distribution-in-idiopathic-intracranial-hypertension-using-dual-energy-x-ray-absorptiometry-scanning
#14
Catherine Hornby, Hannah Botfield, Michael W O'Reilly, Connar Westgate, James Mitchell, Susan P Mollan, Konstantinos Manolopoulos, Jeremy Tomlinson, Alexandra Sinclair
Idiopathic intracranial hypertension (IIH) is strongly associated with obesity. We aimed to utilise dual-energy X-ray absorptiometry (DEXA) to characterise fat distribution, and to evaluate change in fat mass and distribution following weight loss. IIH patients ( n = 24) had a similar fat distribution to body mass index (BMI)- and gender-matched obese controls ( n = 47). In the IIH cohort, truncal fat mass correlated with lumbar puncture pressure. Weight loss in IIH patients resulted in a significant reduction in disease activity and fat mass, predominantly from the truncal region (-4...
April 2018: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29563950/the-melanopsin-mediated-pupillary-light-response-is-not-changed-in-patients-with-newly-diagnosed-idiopathic-intracranial-hypertension
#15
Shakoor Ba-Ali, Rigmor Højland Jensen, Line Sofie Larsen, Henrik Lund-Andersen, Steffen Hamann
Previously, it has been reported that melanopsin-mediated pupillary light response (PLR), measured with pupillometry, is reduced in patients with idiopathic intracranial hypertension (IIH), indicating the clinical utility of the tool in the diagnosis of IIH. In the current study, the authors aimed to measure the PLR in 13 treatment-naive patients with new-onset IIH and 13 healthy controls. In contrast to the previous report, which was based on patients with longstanding IIH ( n = 13), the authors found no significant difference in the melanopsin-mediated PLR ( p = 0...
April 2018: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29563210/venous-waveform-morphological-changes-associated-with-treatment-of-symptomatic-venous-sinus-stenosis
#16
James L West, Rebecca M Garner, Garret P Greeneway, Justin R Traunero, Carol A Aschenbrenner, Jasmeet Singh, Stacey Q Wolfe, Kyle M Fargen
INTRODUCTION: Venous outflow obstruction is recognized as a contributing factor in a subset of patients with idiopathic intracranial hypertension (IIH). Little is known about venous sinus waveform morphology or how it changes after stenting. METHODS: Fifteen patients with IIH underwent waveform recording during catheter venography and manometry. Ten patients (Group A) with venous sinus stenosis and pressure gradient ≥7 mm Hg underwent waveform recording during awake venography and during stenting under general anesthesia...
March 21, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29563208/development-of-an-intracranial-dural-arteriovenous-fistula-after-venous-sinus-stenting-for-idiopathic-intracranial-hypertension
#17
Thomas J Buell, Daniel M Raper, Dale Ding, Ching-Jen Chen, Kenneth C Liu
We report a case in which an intracranial dural arteriovenous fistula (DAVF) developed after endovascular treatment of a patient with idiopathic intracranial hypertension with venous sinus stenting (VSS). The pathogenesis may involve hemodynamic alterations secondary to increased poststenting venous sinus pressure, which may cause new arterial ingrowth into the fistulous sinus wall without capillary interposition. Despite administration of dual antiplatelet therapy, there may also be subclinical cortical vein thrombosis that contributed to DAVF formation...
March 21, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29554002/cerebrospinal-fluid-pressure-reduction-results-in-dynamic-changes-in-optic-nerve-angle-on-magnetic-resonance-imaging
#18
Ranliang Hu, John Holbrook, Nancy J Newman, Valerie Biousse, Beau B Bruce, Deqiang Qiu, John Oshinski, Amit M Saindane
BACKGROUND: Optic nerve sheath tortuosity is a previously reported, but incompletely characterized, finding in idiopathic intracranial hypertension (IIH). We hypothesized that optic nerve angle (ONA), as a quantitative measure of tortuosity, would change dynamically with cerebrospinal fluid (CSF) pressure status of patients with IIH immediately before and after lumbar puncture (LP). METHODS: Consecutive patients with suspected IIH referred for MRI and diagnostic LP were prospectively enrolled in this single institution, institutional review board-approved study...
March 16, 2018: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29543948/why-space-flight-associated-neuro-ocular-syndrome-may-differ-from-idiopathic-intracranial-hypertension
#19
Peter Wostyn, Peter Paul De Deyn
No abstract text is available yet for this article.
March 15, 2018: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29543940/why-space-flight-associated-neuro-ocular-syndrome-may-differ-from-idiopathic-intracranial-hypertension-reply
#20
Andrew G Lee, Thomas H Mader, C Robert Gibson
No abstract text is available yet for this article.
March 15, 2018: JAMA Ophthalmology
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