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Idiopathic Intracrani hypertension

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https://www.readbyqxmd.com/read/29339964/cerebral-venous-thrombosis-with-papilloedema-secondary-to-skull-base-plasmacytoma
#1
Peter W MacIntosh, Amy Y Lin, Jin Suh Kim, Fernando D Testai, Heather E Moss
A 60-year-old woman with history of multiple myeloma was in remission after stem cell transplant 6 years prior. She was undergoing work-up for headaches that were thought to be secondary to a right mastoiditis seen on magnetic resonance imaging (MRI). On routine eye exam, papilloedema was noted. A lumbar puncture was performed, with elevated opening pressure with normal constituents. She was an atypical age for idiopathic intracranial hypertension, and her mastoiditis raised concern for secondary cerebral venous sinus thrombosis...
October 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29338967/real-time-optic-nerve-sheath-diameter-measurement-during-lumbar-puncture
#2
Getaw Worku Hassen, Mohammed Al-Juboori, Barbara Koppel, Gokhan Akfirat, Hossein Kalantari
Measurement of optic nerve sheath diameter (ONSD) using point of care ultrasound has been used to indirectly assess the intracranial pressure (ICP) particularly in conditions where it is raised. Direct pressure measurements using probes reaching the ventricle system correlated with ONSD using ultrasound. Attempts were made to measure the ONSD pre and post lumbar puncture (LP) after draining cerebrospinal fluid (CSF) as well as post ventricular shunt placement. We report ONSD measurement and demonstrate dynamic changes during LP in a patient with known idiopathic intracranial hypertension (IIH)...
January 10, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29317060/fibromyalgia-and-unexplained-widespread-pain-the-idiopathic-cerebrospinal-pressure-dysregulation-hypothesis
#3
M Hulens, W Dankaerts, I Stalmans, A Somers, G Vansant, R Rasschaert, F Bruyninckx
Fibromyalgia (FM) is a debilitating, widespread pain disorder that is assumed to originate from inappropriate pain processing in the central nervous system. Psychological and behavioral factors are both believed to underlie the pathogenesis and complicate the treatment. This hypothesis, however, has not yet been sufficiently supported by scientific evidence and accumulating evidence supports a peripheral neurological origin of the symptoms. We postulate that FM and several unexplained widespread pain syndromes are caused by chronic postural idiopathic cerebrospinal hypertension...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29313398/a-15-year-review-of-secondary-and-tertiary-optic-nerve-sheath-fenestration-for-idiopathic-intracranial-hypertension
#4
Andrew J Anzeljc, Patrick Frias, Brent R Hayek, Nancy Canter Weiner, Ted H Wojno, H Joon Kim
PURPOSE: Optic nerve sheath fenestration (ONSF) is a common surgical option for patients with idiopathic intracranial hypertension (IIH) with vision loss refractory to medical management. Little is known about the visual benefit of repeated ONSF. The authors aimed to assess the efficacy of secondary and tertiary ONSF in patients with IIH. METHODS: A retrospective chart review was performed on all patients with repeat ONSF for IIH at Emory University from 1999 to 2016...
January 9, 2018: Orbit
https://www.readbyqxmd.com/read/29305439/optic-nerve-head-edema-among-patients-presenting-to-the-emergency-department
#5
Virender Sachdeva, Caroline Vasseneix, Rabih Hage, Samuel Bidot, Lindsay C Clough, David W Wright, Nancy J Newman, Valérie Biousse, Beau B Bruce
OBJECTIVE: To determine the frequency of and predictive factors for optic nerve head edema (ONHE) among patients with headache, neurologic deficit, visual loss, or elevated blood pressure in the emergency department (ED). METHODS: Cross-sectional analysis was done of patients with ONHE in the prospective Fundus Photography vs Ophthalmoscopy Trial Outcomes in the Emergency Department (FOTO-ED) study. Demographics, neuroimaging results, management, and patient disposition were collected...
January 5, 2018: Neurology
https://www.readbyqxmd.com/read/29298687/segmentation-error-in-spectral-domain-optical-coherence-tomography-measures-of-the-retinal-nerve-fibre-layer-thickness-in-idiopathic-intracranial-hypertension
#6
Anuriti Aojula, Susan P Mollan, John Horsburgh, Andreas Yiangou, Kiera A Markey, James L Mitchell, William J Scotton, Pearse A Keane, Alexandra J Sinclair
BACKGROUND: Optical Coherence Tomography (OCT) imaging is being increasingly used in clinical practice for the monitoring of papilloedema. The aim is to characterise the extent and location of the Retinal Nerve Fibre Layer (RNFL) Thickness automated segmentation error (SegE) by manual refinement, in a cohort of Idiopathic Intracranial Hypertension (IIH) patients with papilloedema and compare this to controls. METHODS: Baseline Spectral Domain OCT (SDOCT) scans from patients with IIH, and controls with no retinal or optic nerve pathology, were examined...
January 4, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29284598/noninvasive-assessment-of-intracranial-pressure-status-in-idiopathic-intracranial-hypertension-using-displacement-encoding-with-stimulated-echoes-dense-mri-a-prospective-patient-study-with-contemporaneous-csf-pressure-correlation
#7
A M Saindane, D Qiu, J N Oshinski, N J Newman, V Biousse, B B Bruce, J F Holbrook, B M Dale, X Zhong
BACKGROUND AND PURPOSE: Intracranial pressure is estimated invasively by using lumbar puncture with CSF opening pressure measurement. This study evaluated displacement encoding with stimulated echoes (DENSE), an MR imaging technique highly sensitive to brain motion, as a noninvasive means of assessing intracranial pressure status. MATERIALS AND METHODS: Nine patients with suspected elevated intracranial pressure and 9 healthy control subjects were included in this prospective study...
December 28, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29283154/idiopathic-intracranial-hypertension-associated-with-anaemia-secondary-to-antiretroviral-drug-in-a-human-immunodeficiency-virus-positive-patient
#8
J Vijay Ananth, S Sudharshan, Ambika Selvakumar, Bella J Devaleenal, Kavitha Kalaivani, Jyotirmay Biswas
Papilledema in a patient with human immunodeficiency virus (HIV)/acquired immune deficiency syndrome is an alarming finding. Any condition giving rise to raised intracranial tension (ICT) can cause papilledema, and in these patients, it could be secondary to opportunistic infections like meningitis to neoplasm. We report a case of a 28-year old female with HIV on antiretroviral therapy, who presented to us, with papilledema. Her fundus examination revealed superficial hemorrhages and Roth's spots along with papilledema...
January 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29258930/utility-of-intracranial-pressure-monitoring-for-diagnosis-of-idiopathic-intracranial-hypertension-in-the-absence-of-papilledema
#9
Kelly J Bridges, Ahmed M Raslan
BACKGROUND: Idiopathic intracranial hypertension (IIH) is characterized by headaches, visual obscurations, and papilledema, while diagnosis involves lumbar puncture (LP) with an elevated opening pressure (OP) ≥ 20cm H20. When papilledema is absent, diagnosis becomes less clear. Some physicians have argued that absence of papilledema rules out IIH, while others maintain that elevated OP is sufficient for diagnosis. METHODS: The authors performed a single institution 4-year retrospective analysis of patients who underwent invasive intracranial pressure (ICP) monitoring for presumed IIH...
December 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29240577/temporary-lumbar-drain-as-treatment-for-pediatric-fulminant-idiopathic-intracranial-hypertension-response
#10
Mays A El-Dairi, M Tariq Bhatti
No abstract text is available yet for this article.
December 12, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29240576/temporary-lumbar-drain-as-treatment-for-pediatric-fulminant-idiopathic-intracranial-hypertension-comment
#11
Peter Gates, Peter McNeill, Peter Gates
No abstract text is available yet for this article.
December 12, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29238388/what-do-transgender-patients-teach-us-about-idiopathic-intracranial-hypertension
#12
Catherine Hornby, Susan P Mollan, James Mitchell, Keira Annie Markey, Andreas Yangou, Ben L C Wright, Michael W O'Reilly, Alexandra J Sinclair
Idiopathic intracranial hypertension (IIH), a condition of raised intracranial pressure, is characterised by headaches and visual disturbances. Its pathogenesis is currently unknown; however, dysregulation of androgens may be implicated. Here, the authors present a case of a 22-year-old patient undergoing female-to-male (FTM) gender reassignment who developed IIH shortly after commencing testosterone therapy. This interesting case presents the possibility of androgens having a pathogenic role in IIH.
2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29209151/endoscopic-repair-of-lateral-sphenoid-encephaloceles-a-case-series
#13
Mitchell R Gore
Background: Lateral sphenoid encephaloceles present a surgical challenge. These encephaloceles may be difficult to access given their lateral location and proximity to the neural and vascular structures of the sphenoid floor, pterygopalatine fossa, and lateral and superior sphenoid walls. Additionally, many patients have idiopathic intracranial hypertension, increasing the risk of recurrence. When untreated or undiscovered, these encephaloceles increase the risk of meningitis. Methods: All consecutive endoscopic repairs of lateral sphenoid encephaloceles by a single surgeon from 2012 to 2017 were analyzed for method of repair, complications, and recurrence rate...
2017: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/29204038/venous-sinus-stenting-using-transcranial-access-for-the-treatment-of-idiopathic-intracranial-hypertension-in-a-pediatric-patient
#14
Thomas J Buell, Robert M Starke, Dale Ding, Harry R Hixson, Daniel M S Raper, Ching-Jen Chen, Kenneth C Liu
A 4-year-old male with headaches, papilledema, intracranial hypertension, and bilateral transverse sinus (TS) stenosis underwent attempted percutaneous placement of a right TS stent. Stent deployment was not technically feasible due to the stiffness of the stent and tortuosity of the patient's jugular bulb. Therefore, the patient underwent hybrid endovascular stenting of the right TS using neuronavigation and direct access of the TS following a single burr hole craniectomy. Two Express 8 mm × 17 mm balloon-mounted stents were deployed into the right TS, which resulted in obliteration of the preexisting trans-stenosis pressure gradient and decreased intracranial parenchymal pressure as monitored through an intracranial pressure bolt...
October 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29194601/idiopathic-intracranial-hypertension-in-children-and-adolescents-an-update
#15
Catalina Cleves-Bayon
PREMISE: Idiopathic intracranial hypertension (IIH), previously known as pseudotumor cerebri syndrome (PTC) is a serious neurological disorder that can lead to irreversible visual loss. Predominantly a disorder affecting women in reproductive years, the pediatric population is not spared. PROBLEM: In the past few years, the condition has been redefined, due to new accepted values for opening pressure in children and advances in neuroimaging. Emerging techniques in ophthalmology are being increasingly used to monitor disease in these patients...
December 1, 2017: Headache
https://www.readbyqxmd.com/read/29192966/improving-identification-of-idiopathic-intracranial-hypertension-patients-in-swedish-patient-register
#16
A Sundholm, S Burkill, S Bahmanyar, A I M Nilsson Remahl
OBJECTIVE: Idiopathic intracranial hypertension (IIH) is often misdiagnosed. This can cause problems if conducting register-based studies. The study purpose was to produce algorithms that better identify patients with correct diagnosis of IIH in the Swedish National Patient Register (NPR). METHODS: Patients with ICD-10 code G93.2 for IIH registered in the NPR (2006-2013, Stockholm County) were included and diagnosis validated by medical record reviews. Patients were randomized into two groups: one used to produce the algorithm (n = 105) and one for validation (n = 102)...
November 28, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29175828/retrograde-3d-rotational-venography-3drv-for-venous-sinus-stent-placement-in-idiopathic-intracranial-hypertension
#17
Christopher C Young, Ryan P Morton, Basavaraj V Ghodke, Michael R Levitt
BACKGROUND: Dural venous sinus stenting has emerged as an effective and durable treatment for idiopathic intracranial hypertension (IIH). Improved visualization of the venous sinuses can improve stent placement. METHODS: We present two cases of IIH treated with venous sinus stenting in which retrograde three-dimensional rotational venography (3DRV) provided superior anatomical details of the venous sinuses for optimal sizing and positioning of stent. RESULTS: Comparison of pre-stent 3DRV with post-stent contrast-enhanced flat panel detector CT allowed confirmation of stent placement and the result of stenosis dilation...
November 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29161320/in-vivo-effects-of-intraocular-and-intracranial-pressures-on-the-lamina-cribrosa-microstructure
#18
Bo Wang, Huong Tran, Matthew A Smith, Tigran Kostanyan, Samantha E Schmitt, Richard A Bilonick, Ning-Jiun Jan, Larry Kagemann, Elizabeth C Tyler-Kabara, Hiroshi Ishikawa, Joel S Schuman, Ian A Sigal, Gadi Wollstein
There is increasing clinical evidence that the eye is not only affected by intraocular pressure (IOP), but also by intracranial pressure (ICP). Both pressures meet at the optic nerve head of the eye, specifically the lamina cribrosa (LC). The LC is a collagenous meshwork through which all retinal ganglion cell axons pass on their way to the brain. Distortion of the LC causes a biological cascade leading to neuropathy and impaired vision in situations such as glaucoma and idiopathic intracranial hypertension...
2017: PloS One
https://www.readbyqxmd.com/read/29139045/electroretinography-in-idiopathic-intracranial-hypertension-comparison-of-the-pattern-erg-and-the-photopic-negative-response
#19
Jason C Park, Heather E Moss, J Jason McAnany
PURPOSE: To evaluate the relationship between electrophysiological measures of retinal ganglion cell (RGC) function in patients who have idiopathic intracranial hypertension (IIH). METHODS: The pattern electroretinogram (pERG) and photopic negative response (PhNR) were recorded from 11 IIH patients and 11 age-similar controls. The pERG was elicited by a contrast-reversing checkerboard. The PhNR, a slow negative component following the flash ERG b-wave, was recorded in response to a long-wavelength flash presented against a short-wavelength adapting field...
November 14, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/29135815/weighing-the-risks-and-benefits-of-antidepressants-in-idiopathic-intracranial-hypertension
#20
Anna M Gruener, Alexander D Jolly, James M A Ellison, Michael A Burdon
No abstract text is available yet for this article.
November 9, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
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