keyword
MENU ▼
Read by QxMD icon Read
search

Ischemic optic neuropathy

keyword
https://www.readbyqxmd.com/read/28527030/intravitreal-erythropoietin-injection-in-late-stage-optic-neuropathy-a-safety-study-on-human
#1
Ugur Acar, Bekir Kucuk, Mehmet Koray Sevinc, Seckin Aykas, Mesut Erdurmus, Gungor Sobaci
AIM: To evaluate the whether intravitreal erythropoietin (EPO) administration has any beneficial or adverse effect in patients with late-stage optic neuropathy (ON) or not. METHODS: The study examined 16 eyes of 16 patients who had late-stage ON and ≥1/20 best-corrected visual acuity (BCVA) in their affected eye. There were nonarteritic ischemic ON in 10 (62.5%) eyes, traumatic ON in 4 (25.0%) eyes and methanol-induced ON in 2 (12.5%) eyes. Using pars plana approach, 2000 IU/0...
May 19, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28527029/critical-flicker-fusion-frequency-in-demyelinating-and-ischemic-optic-neuropathies
#2
Matthew T Young, Puneet S Braich, Scott R Haines
PURPOSE: Critical flicker fusion (CFF) frequency is a well-studied test for evaluating demyelinating optic neuritis (ON). Its use in evaluating other optic neuropathies is not well established. The purpose of this study was to compare CFF in ON and non-arteritic anterior ischemic optic neuropathy (NAION). METHODS: We performed a retrospective review to compare multiple variables for eyes with ON or NAION using two-sided T tests and Chi-square tests. A multivariate linear regression was performed for the dependent variable CFF...
May 19, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28524151/-etiopathogenesis-of-ocular-ischemic-syndrome
#3
D К Makhkamova
Ocular ischemic syndrome (OIS) is a collection of symptoms of carotid and ophthalmic artery disease of common genesis accompanied by ischemia of eyeball membranes. Specifically, the intraocular blood flow becomes impaired due to inflow reduction or arrest, while the venous outflow remains patent. Causes of OIS include arterial hypertension, atherosclerosis, diabetes, aortoarteritis and other vascular diseases. Clinical features depend on the extent, nature, and site of vascular involvement as well as the concurrent pathology...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28523333/giant-cell-arteritis-with-arteritic-anterior-ischemic-optic-neuropathy
#4
Horia Tudor Stanca, Elena Suvac, Mihnea Munteanu, Dragoş Cătălin Jianu, Andrei Gheorghe Marius Motoc, Gavril Cosmin Roşca, Ovidiu Boruga
Giant cell arteritis (GCA) is an inflammatory vasculitis of unknown etiology that mainly involves large and medium arteries, particularly the cranial branches of the aorta. GCA with consecutive arteritic-anterior ischemic optic neuropathy (A-AION) has rarely been diagnosed in Romania. Recently, we encountered an 83-year-old patient who presented with left eye visual impairment and corresponding optic disc diffusely swollen and pale. He also had typical manifestations of GCA, such as malaise, and temporal headache, and a highly elevated erythrocyte sedimentation rate and C-reactive protein level...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28513892/assessment-of-nonarteritic-anterior-ischemic-optic-neuropathy-with-intravoxel-incoherent-motion-diffusion-weighted-imaging-using-readout-segmented-echo-planar-imaging-parallel-imaging-and-2d-navigator-based-reacquisition
#5
Ping Lu, Yan Sha, Hailin Wan, Feng Wang, Guohong Tan, Wenlin Tang
PURPOSE: To determine the feasibility of intravoxel incoherent motion (IVIM) for characterizing perfusion properties and its potential diagnostic utility for nonarteritic anterior ischemic optic neuropathy (NAION). IVIM diffusion-weighted imaging is a promising technique that can measure perfusion and diffusion characteristics simultaneously in a noninvasive manner. MATERIALS AND METHODS: Orbital IVIM in a 3.0T scanner was performed on 33 patients with NAION and 15 controls using readout-segmented echo-planar imaging, parallel imaging, and 2D navigator-based reacquisition (RESOLVE-IVIM)...
May 17, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28512422/acute-onset-ocular-hypotony-after-coronary-artery-bypass-surgery
#6
Sarah Farukhi Ahmed, Audrey Xi Tai, Mason Schmutz, John Combs, Sameh Mosaed
IMPORTANCE: The purpose of this case report is to evaluate risk factors associated with post-coronary artery bypass graft (CABG) ocular hypotony compared to post-CABG ischemic optic neuropathy. OBSERVATIONS: The patient described here is a single case at the University of California, Irvine Medical Center, from July 2016. This case demonstrates the rare incidence of acute post-CABG ocular hypotony and vision loss in a patient with prior history of optic atrophy...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28499892/tocilizumab-for-giant-cell-arteritis-with-corticosteroid-resistant-progressive-anterior-ischemic-optic-neuropathy
#7
Julien Vionnet, Guillaume Buss, Cédric Mayer, Arseny A Sokolov, François-Xavier Borruat, François Spertini
BACKGROUND: Giant cell arteritis is an inflammatory disorder of the medium- and large-size arteries. Permanent visual loss related to arteritic anterior ischemic optic neuropathy is among the most serious complications of this disease and initial treatment usually consists in high dose corticosteroids. There is no consensus in the literature concerning the optimal therapeutic approach in giant cell arteritis patients with corticosteroid-resistant arteritic anterior ischemic optic neuropathy...
May 9, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28495949/the-central-bright-spot-sign-a-potential-new-mr-imaging-sign-for-the-early-diagnosis-of-anterior-ischemic-optic-neuropathy-due-to-giant-cell-arteritis
#8
P Remond, A Attyé, A Lecler, L Lamalle, N Boudiaf, F Aptel, A Krainik, C Chiquet
BACKGROUND AND PURPOSE: A rapid identification of the etiology of anterior ischemic optic neuropathy is crucial because it determines therapeutic management. Our aim was to assess MR imaging to study the optic nerve head in patients referred with anterior ischemic optic neuropathy, due to either giant cell arteritis or the nonarteritic form of the disease, compared with healthy subjects. MATERIALS AND METHODS: Fifteen patients with giant cell arteritis-related anterior ischemic optic neuropathy and 15 patients with nonarteritic anterior ischemic optic neuropathy from 2 medical centers were prospectively included in our study between August 2015 and May 2016...
May 11, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28483156/-bilateral-papilledema
#9
REVIEW
M-B Rougier
This article will review the current standard of care in the diagnosis and management of bilateral optic disc edema. Two emergent conditions must be considered first: secondary intracranial hypertension (cerebral tumor, cerebral thrombophlebitis…) and arteritic ischemic optic neuropathy (or giant cell arteritis). Having ruled out these two diagnoses, the management follows various steps in order to: (i) rule out pseudo-edema, and (ii) determine the underlying cause of the edema: papilledema, non-arteritic ischemic optic neuropathy or papillitis...
May 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28479812/unilateral-vision-loss-without-ophthalmoplegia-as-a-rare-complication-of-spinal-surgery
#10
Elif Akpınar, Mehmet Sabri Gürbüz, Gülfidan Bitirgen, Mehmet Özerk Okutan
Postoperative visual loss is an extremely rare complication of nonocular surgery. The most common causes are ischemic optic neuropathy, central retinal artery occlusion, and cerebral ischemia. Acute visual loss after spinal surgery is even rarer. The most important risk factors are long-lasting operations, massive bleedings, fluid overload, hypotension, hypothermia, coagulation disorders, direct trauma, embolism, long-term external ocular pressure, and anemia. Here, we present a case of a 54-year-old male who developed acute visual loss in his left eye after a lumbar instrumentation surgery and was diagnosed with retinal artery occlusion...
April 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28471894/diffusion-restriction-in-the-optic-nerve-and-retina-in-patients-with-carotid-occlusion
#11
Mikel Vicente, Alba R Serrano, Neus Falgàs, Sergio Borrego, Sergio Amaro, Carlos Cardenal, Xabier Urra
OBJECTIVES: The primary role of magnetic resonance imaging (MRI) in a patient with suspected optic neuropathy is to rule out nonischemic disorders, and many of the reported cases of ischemic optic neuropathy with positive neuroimaging are atypical forms of ischemic optic neuropathy. We studied the role of diffusion-weighted images of MRI in patients with ocular ischemia. METHODS: We describe the clinical, fundoscopic and neuroimaging characteristics of 3 patients with definite ocular ischemia related to occlusion of the carotid artery...
May 2017: Neurologist
https://www.readbyqxmd.com/read/28469483/correlation-between-ischemic-retinal-accidents-and-radial-peripapillary-capillaries-in-the-optic-nerve-using-optical-coherence-tomographic-angiography-observations-in-6-patients
#12
Marta Cerdà-Ibáñez, Antonio Duch-Samper, Rodrigo Clemente-Tomás, Raúl Torrecillas-Picazo, Noemí Ruiz Del Río, Laura Manfreda-Dominguez
BACKGROUND: Perfusion of the optic nerve has been widely studied using fluorescein angiography (FAG), which is currently regarded as the criterion standard. However, FAG has adverse effects associated with intravenous contrast administration and is limited in its capacity to characterize and stratify the different vascular layers of the optic nerve and retina. The use of new imaging techniques, such as optical coherence tomographic angiography (Angio-OCT), is therefore important. AIM: A qualitative description is made of the vascular layers of the optic nerve and of how vascular events affect radial peripapillary capillaries (RPC)...
2017: Ophthalmology and Eye Diseases
https://www.readbyqxmd.com/read/28457303/perioperative-nonarteritic-anterior-ischemic-optic-neuropathy-in-jehovah-s-witnesses
#13
Alec L Amram, Stacy V Smith, Andrew G Lee
No abstract text is available yet for this article.
April 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28452852/the-14th-hoyt-lecture-ischemic-optic-neuropathy-the-evolving-profile-1966-2015-response
#14
Anthony C Arnold
No abstract text is available yet for this article.
June 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28452851/the-14th-hoyt-lecture-ischemic-optic-neuropathy-the-evolving-profile-1966-2015-comment
#15
Cameron F Parsa
No abstract text is available yet for this article.
June 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28431433/experimental-anterior-ischemic-optic-neuropathy-in-diabetic-mice-exhibited-severe-retinal-swelling-associated-with-vegf-elevation
#16
Ming-Hui Sun, Mohammad Ali Shariati, Yaping Joyce Liao
Purpose: Diabetes mellitus (DM) is one of the most important risk factors for nonarteritic anterior ischemic optic neuropathy (AION). In this study, we investigated for the first time the impact of experimental AION in a DM model. Methods: We induced a photochemical thrombosis model of AION after streptozotocin-induced DM and performed serial optical coherence tomography (OCT), morphometric analyses, and VEGF levels in the retina and sera. Results: Compared with non-DM animals, experimental AION in DM mice led to significantly greater retinal swelling on day 1 and worse thinning at week 3 on OCT measurements...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28430051/reversible-postoperative-blindness-caused-by-bilateral-status-epilepticus-amauroticus-following-thoracolumbar-deformity-correction-case-report
#17
Tarik F Ibrahim, Rochelle T Sweis, Russ P Nockels
Postoperative vision loss (POVL) is a devastating complication and has been reported after complex spine procedures. Anterior ischemic optic neuropathy and posterior optic neuropathy are the 2 most common causes of POVL. Bilateral occipital lobe seizures causing complete blindness are rare and have not been reported as a cause of POVL after spine surgery with the patient prone. The authors report the case of a 67-year-old man without a history of seizures who underwent a staged thoracolumbar deformity correction and developed POVL 6 hours after surgery...
April 21, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28427356/postural-effects-on-intraocular-pressure-and-ocular-perfusion-pressure-in-patients-with-non-arteritic-anterior-ischemic-optic-neuropathy
#18
Jee Myung Yang, Sang Woo Park, Yong Sok Ji, Jaeryung Kim, Chungkwon Yoo, Hwan Heo
BACKGROUND: To investigate postural effects on intraocular pressure (IOP) and ocular perfusion pressure (OPP) in patients with non-arteritic ischemic optic neuropathy (NAION). METHODS: IOP and blood pressure (BP) were measured in 20 patients with unilateral NAION 10 min after changing to each of the following positions sequentially: sitting, supine, right lateral decubitus position (LDP), supine, left LDP, and supine. IOP was measured using a rebound tonometer and OPP was calculated using formulas based on mean BP...
April 20, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28400888/macular-evaluation-w%C3%A4-th-spectral-domain-type-optic-coherence-tomography-in-eyes-with-acute-nonarteritic-ischemic-optic-neuropathy-at-the-presentation-visit
#19
Oya Donmez, Gamze Kocaoglu, Aylin Yaman, Meltem Soylev Bajin, Ali Osman Saatci
PURPOSE: To evaluate the macula with spectral domain type optic coherence tomography (OCT) in eyes with acute nonarteritic anterior ischemic optic neuropathy (NAION) at the presentation visit. METHODS: Medical charts of the 133 patients who received the diagnosis of acute NAION between January 2008 and July 2014 at the Neuro-ophthalmology unit of Dokuz Eylul University were reviewed retrospectively. Sixtythree patients within 30 days of symptom onset with available baseline spectral domain type macular OCT were included in this study...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28395906/-oct-angiography-and-choroidal-ischemia-related-to-arteritic-anterior-ischemic-optic-neuropathy
#20
M-B Rougier, M-N Delyfer, J-F Korobelnik
No abstract text is available yet for this article.
May 2017: Journal Français D'ophtalmologie
keyword
keyword
57448
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"