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Idiopathic Intracrani hypertension

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https://www.readbyqxmd.com/read/28716667/pupillometric-evaluation-of-the-melanopsin-containing-retinal-ganglion-cells-in-mitochondrial-and-non-mitochondrial-optic-neuropathies
#1
Shakoor Ba-Ali, Henrik Lund-Andersen
In recent years, chromatic pupillometry is used in humans to evaluate the activity of melanopsin expressing intrinsic photosensitive retinal ganglion cells (ipRGCs). Blue light is used to stimulate the ipRGCs and red light activates the rod/cone photoreceptors. The late re-dilation phase of pupillary light reflex is primarily driven by the ipRGCs. Optic neuropathies i.e. Leber hereditary optic neuropathy (LHON), autosomal dominant optic atrophy (ADOA), nonarteritic anterior ischemic optic neuropathy (NAION), glaucoma, optic neuritis and idiopathic intracranial hypertension (IIH) are among the diseases, which have been subject to pupillometric studies...
July 14, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28711538/cerebral-venous-sinus-thrombosis-secondary-to-idiopathic-hypertrophic-cranial-pachymeningitis-a-case-report-and-review-of-the-literature
#2
Kaiyuan Huang, Qingsheng Xu, Yuankun Ma, Renya Zhan, Jian Shen, Jianwei Pan
BACKGOUND AND IMPORTANCE: Idiopathic hypertrophic cranial pachymeningitis (IHCP) is a rare fibrosing inflammatory process involving the dura mater. Currently, there is no consensus on the treatments for IHCP, and the usefulness of immunosuppressive agents as a first-line option remains controversial. Cerebral venous sinus occlusion (CVSO) and cerebral venous sinus thrombosis (CVST) secondary to IHCP, which may cause progressive intracranial hypertension and venous obstructive parenchymal lesions, make the diagnosis and treatment of IHCP more complicated...
July 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28705815/sigmoid-sinus-diverticulum-dehiscence-and-venous-sinus-stenosis-potential-causes-of-pulsatile-tinnitus-in-patients-with-idiopathic-intracranial-hypertension
#3
J A Lansley, W Tucker, M R Eriksen, P Riordan-Eva, S E J Connor
BACKGROUND AND PURPOSE: Pulsatile tinnitus is experienced by most patients with idiopathic intracranial hypertension. The pathophysiology remains uncertain; however, transverse sinus stenosis and sigmoid sinus diverticulum/dehiscence have been proposed as potential etiologies. We aimed to determine whether the prevalence of transverse sinus stenosis and sigmoid sinus diverticulum/dehiscence was increased in patients with idiopathic intracranial hypertension and pulsatile tinnitus relative to those without pulsatile tinnitus and a control group...
July 13, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28699330/stabbing-headache-as-the-presenting-symptom-of-idiopathic-intracranial-hypertension
#4
Gulshan Yunisova, Ipek Güngör, Elif Kocasoy Orhan, Betül Baykan
No abstract text is available yet for this article.
July 2017: Headache
https://www.readbyqxmd.com/read/28679427/comparison-of-the-sagittal-sinus-cross-sectional-area-between-patients-with-multiple-sclerosis-hydrocephalus-intracranial-hypertension-and-spontaneous-intracranial-hypotension-a-surrogate-marker-of-venous-transmural-pressure
#5
Grant A Bateman, Jeannette Lechner-Scott, Ross Copping, Christopher Moeskops, Swee Leong Yap
There is evidence that patients with multiple sclerosis (MS) and hydrocephalus share some common pathophysiological mechanisms. Alterations in CSF pressure are known to affect cerebral venous sinus geometry. To further explore these mechanisms, we measured the superior sagittal sinus (SSS) cross-sectional area 3 cm above the torcular using T2 images in 20 MS, 10 spontaneous intracranial hypotension (SIH), 21 hydrocephalus and 20 idiopathic intracranial hypertension (IIH) patients and compared with 20 matched controls...
July 6, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/28678218/idiopathic-intracranial-hypertension-in-males
#6
Hissah K Al Abdulsalam, Abdulrazag M Ajlan
Idiopathic intracranial hypertension (IIH) is a neurological condition characterized by increased intracranial pressure without an underlying intracranial pathology. This condition is rarely encountered in men and it predominantly affects obese women of childbearing age. We present an interesting case of IIH in a male patient who presented with acute severe vision loss over 2 weeks and was successfully treated via surgery. Although IIH is less common in men than in women, men are more likely to develop vision loss, which is usually severe and less likely to respond to medical treatment...
July 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
https://www.readbyqxmd.com/read/28668233/incidence-and-demographics-of-pediatric-intracranial-hypertension
#7
Natalie Gillson, Charlotte Jones, Rachel E Reem, David L Rogers, Nicholas Zumberge, Shawn C Aylward
OBJECTIVE: We analyzed the incidence and demographic features of pediatric intracranial hypertension. METHODS: Inpatient and outpatient encounters of children aged 18 years or younger who were diagnosed with primary (idiopathic) or secondary intracranial hypertension between January 2010 and December 2013 were identified. Data were collected from a subspecialty clinic devoted to intracranial hypertension and the sole children's hospital in a large Midwestern city of the United States...
April 27, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28663268/increased-curvature-of-the-tentorium-cerebelli-in-idiopathic-intracranial-hypertension
#8
P P Morris, N Lachman, D F Black, R A Carter, J Port, N Campeau
BACKGROUND AND PURPOSE: Transverse sinus effacement is detectable on MRV examinations in almost all patients with idiopathic intracranial hypertension. This effacement of the transverse sinus is presumed to be mediated by elevation of intracranial pressure, resulting in compression and inward collapse of the dural margins of the sinus. We sought to establish whether supratentorial broad-based downward deformity of the tentorium might explain transverse sinus effacement in idiopathic intracranial hypertension...
June 29, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28637822/pattern-of-pressure-gradient-alterations-after-venous-sinus-stenting-for-idiopathic-intracranial-hypertension-predicts-stent-adjacent-stenosis-a-proposed-classification-system
#9
Daniel Raper, Thomas J Buell, Dale Ding, Ching-Jen Chen, Robert M Starke, Kenneth C Liu
OBJECTIVE: Venous sinus stenting (VSS) is a safe and effective treatment for idiopathic intracranial hypertension (IIH) with angiographic venous sinus stenosis. However, predictors of stent-adjacent stenosis (SAS) remain poorly defined. METHODS: We performed a retrospective review of 47 patients with IIH and intracranial venous stenosis who underwent VSS with pre- and post-stent venography. Patient characteristics, treatments and outcomes were reviewed. Changes in pressure gradient after VSS were classified according to pattern of gradient resolution into types I-III...
June 21, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28625338/acute-diplopia-in-the-pediatric-emergency-department-a-cohort-multicenter-italian-study
#10
Umberto Raucci, Pasquale Parisi, Nicola Vanacore, Francesco La Penna, Valentina Ferro, Lucia Calistri, Claudia Bondone, Fabio Midulla, Agnese Suppiej, Raffaele Falsaperla, Duccio Maria Cordelli, Antonella Palmieri, Alberto Verrotti, Sabrina Becciani, Sonia Aguzzi, Mario Mastrangelo, Federica Pelizza, Filippo Greco, Giulia Carbonari, Ramona Tallone, Gabriella Bottone, Italo Trenta, Stefano Masi, Maria Pia Villa, Antonino Reale
BACKGROUND: Acute diplopia (AD) is an uncommon and distressing symptom of numerous ocular and neurological conditions, with potentially serious sequelaes. No data are present in pediatrics on the presentation and management of AD. AIM: This study investigated characteristics, etiology and health care utilization of the pediatric population with AD accessed to pediatric Emergency Departments (ED), trying to identify "red flags" associated with potentially life-threatening (LT) conditions...
June 3, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28616896/high-resolution-transbulbar-ultrasonography-helping-differentiate-intracranial-hypertension-in-bilateral-optic-disc-oedema-patients
#11
Qian Chen, Weimin Chen, Min Wang, Xinghuai Sun, Yan Sha, Zhenxin Li, Guohong Tian
PURPOSE: The enlargement of optic nerve sheath diameter (ONSD) has been proven to be related with raised intracranial pressure (ICP). No prospective study has been focused on utilizing retrobulbar ultrasonography in optic disc oedema patient presented to ophthalmologist. METHODS: High-resolution transbulbar ultrasonography was performed in a cohort of patient presented with bilateral optic disc oedema. The subarachnoid space of optic nerve (SAS), ONSD and optic nerve diameter (OND) was measured prior to other ancillaries including lumbar puncture...
June 14, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28611643/uncommon-presentation-of-idiopathic-intracranial-hypertension-in-a-patient-with-polycystic-ovary-syndrome-a-case-report
#12
Anas Mohammad Albarrak, Suleiman Kojan
INTRODUCTION: Idiopathic intracranial hypertension is a rare condition characterized by increased intracranial pressure without clinical, laboratory, or radiological evidence of intracranial pathology. Early management could prevent irreversible outcomes. CASE PRESENTATION: A 17-year-old single Arabian female of Arab origin presented with a 2-day complaint of horizontal diplopia and transient visual obscurations. She denied any history of headache or decreased vision...
January 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28600075/corrigendum-to-optic-nerve-sheath-fenestration-for-idiopathic-intracranial-hypertension-a-seven-year-review-of-visual-outcomes-in-a-tertiary-centre-clin-neurol-neurosurg-137-october-2015-94-101
#13
E E Obi, B K Lakhani, J Burns, R Sampath
No abstract text is available yet for this article.
June 6, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28584914/optical-coherence-tomography-for-the-diagnosis-and-monitoring-of-idiopathic-intracranial-hypertension
#14
Philipp Albrecht, Christine Blasberg, Marius Ringelstein, Ann-Kristin Müller, David Finis, Rainer Guthoff, Ella-Maria Kadas, Wolf Lagreze, Orhan Aktas, Hans-Peter Hartung, Friedemann Paul, Alexander U Brandt, Axel Methner
The objectives of the study were to investigate the value of optical coherence tomography in detecting papilledema in patients with idiopathic intracranial hypertension (IIH), a disease which is difficult to monitor and which can lead to permanent visual deficits; to analyze retinal changes over time. In this non-interventional case-control study, spectral-domain optical coherence tomography (SD-OCT) was used to analyze the retinal and optic nerve head (ONH) morphology of 21 patients with IIH and 27 age- and sex-matched healthy controls over time...
July 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28562736/bariatric-surgery-as-a-treatment-for-pseudotumor-cerebri-case-study-and-narrative-review-of-the-literature
#15
Everton Cazzo, Martinho Antonio Gestic, Murillo Pimentel Utrini, Felipe David Mendonça Chaim, Fábio Henrique Mendonça Chaim, Elaine Cristina Cândido, Luciana Bueno da Silveira Jarolavsky, Ana Maria Neder de Almeida, José Carlos Pareja, Elinton Adami Chaim
CONTEXT: Pseudotumor cerebri occurs when there is an increase in intracranial pressure without an underlying cause, usually leading to loss of vision. It is most commonly observed in obese women of child-bearing age. CASE REPORT: A 46-year-old woman presented at our service with idiopathic intracranial hypertension that had been diagnosed two years earlier, which had led to chronic refractory headache and an estimated 30% loss of visual acuity, associated with bilateral papilledema...
May 29, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28560487/effect-of-venous-stenting-on-intracranial-pressure-in-idiopathic-intracranial-hypertension
#16
Samir A Matloob, Ahmed K Toma, Simon D Thompson, Chee L Gan, Fergus Robertson, Lewis Thorne, Laurence D Watkins
BACKGROUND: Idiopathic intracranial hypertension (IIH) is characterised by an increased intracranial pressure (ICP) in the absence of any central nervous system disease or structural abnormality and by normal CSF composition. Management becomes complicated once surgical intervention is required. Venous sinus stenosis has been suggested as a possible aetiology for IIH. Venous sinus stenting has emerged as a possible interventional option. Evidence for venous sinus stenting is based on elimination of the venous pressure gradient and clinical response...
May 31, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28553393/osteoblastoma-mimicking-an-idiopathic-intracranial-hypertension-syndrome
#17
Alessandro Boaro, Elisabetta Marton, Grazia Marina Mazzucco, Pierluigi Longatti
Osteoblastomas are rare, benign bone tumors mainly arising from the long bones and the posterior vertebral arches. Skull localizations account for approximately 15% of cases. A total amount of thirty cases involving the temporal bone are reported in the literature. Clinical presentation of temporal osteoblastomas often includes local pain and swelling, while 7(th) and 8(th) cranial nerve impairment is rare. We report the novel finding of increase intracranial pressure syndrome secondary to dominant transverse-sigmoid sinus junction compression caused by a small temporal bone osteoblastoma...
January 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28536838/outcomes-of-ventriculoperitoneal-shunt-insertion-in-the-management-of-idiopathic-intracranial-hypertension-in-children
#18
J Heyman, Ronak Ved, A Amato-Watkins, I Bhatti, J Te Water Naude, F Gibbon, P Leach
PURPOSE: The ventriculoperitoneal (VP) shunt has become the procedure of choice for treatment of idiopathic intracranial hypertension (IIH). We aimed to assess the efficacy of frameless stereotactic placement of VP shunts for the management of medically resistant IIH in children and to assess the role of gender and obesity in the aetiology of the condition. METHODS: This is a retrospective analysis of the case notes of 10 patients treated surgically at the University Hospital of Wales in Cardiff, from May 2006 to September 2012...
May 23, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28534259/the-efficacy-of-orbital-ultrasonography-and-magnetic-resonance-imaging-findings-with-direct-measurement-of-intracranial-pressure-in-distinguishing-papilledema-from-pseudopapilledema
#19
Zeynep Ozturk, Tuba Atalay, Ebru Arhan, Kursad Aydin, Ayse Serdaroglu, Tugba Hirfanoglu, Cengiz Havali, Yilmaz Akbas, Duygu Yalinbas
INTRODUCTION: The goal of this study was to evaluate the utility of orbital ultrasonography and magnetic resonance imaging in the diagnosis of idiopathic intracranial hypertension (IIH). METHOD: We reviewed the medical records of patients referred to our department for suspected IIH. RESULTS: Seven children were diagnosed with IIH. Nine children revealed pseudopapilledema by optic coherence tomography and/or orbital ultrasonography. When the axial sequences were reexamined, patients with papilledema had optic nerve sheath (ONS) enlargement (6...
May 22, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28533846/-bilateral-papilledema-secondary-to-intracranial-hypertension-in-an-adolescent-girl
#20
Seydou Bakayoko, Nouhoum Guirou, Brainima Coulibaly, Jeannette Traoré
Papilledema is a fluid and/or axonal swelling of the optic nerve head due to a blockage of axoplasmic flow at the level of the cribriform plate. We report the case of a 17-year old adolescent girl with bilateral papilledema secondary to idiopathic intracranial hypertension.
2017: Pan African Medical Journal
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