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Retinal vein obstruction

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https://www.readbyqxmd.com/read/30056592/combined-oct-distance-and-fbg-force-sensing-cannulation-needle-for-retinal-vein-cannulation-in-vivo-animal-validation
#1
M Ourak, J Smits, L Esteveny, G Borghesan, A Gijbels, L Schoevaerdts, Y Douven, J Scholtes, E Lankenau, T Eixmann, H Schulz-Hildebrandt, G Hüttmann, M Kozlovszky, G Kronreif, K Willekens, P Stalmans, K Faridpooya, M Cereda, A Giani, G Staurenghi, D Reynaerts, E B Vander Poorten
PURPOSE: Retinal vein cannulation is an experimental procedure during which a clot-dissolving drug is injected into an obstructed retinal vein. However, due to the fragility and minute size of retinal veins, such procedure is considered too risky to perform manually. With the aid of surgical robots, key limiting factors such as: unwanted eye rotations, hand tremor and instrument immobilization can be tackled. However, local instrument anatomy distance and force estimation remain unresolved issues...
July 28, 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/30046538/10-year-fundus-tessellation-progression-and-retinal-vein-occlusion
#2
Yan-Ni Yan, Ya-Xing Wang, Yan Yang, Liang Xu, Jie Xu, Qian Wang, Jing-Yan Yang, Wen-Jia Zhou, Wen-Bin Wei, Jost B Jonas
AIM: To access the 10-year fundus tessellation progression in patients with retinal vein occlusion. METHODS: The Beijing Eye Study 2001/2011 is a population-based longitudinal study. The study participants underwent a detailed physical and ophthalmic examination. Degree of fundus tessellation was graded by using fundus photographs of the macula and optic disc. Progression of fundus tessellation was calculated by fundus tessellation degree of 2011 minus degree of 2001...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29492920/-d2-radical-resection-of-omental-bursa-and-no-12p-and-no-8p-for-gastric-carcinoma-a-retrospectively-analysis-from-a-single-center-in-china
#3
Luchuan Chen, Shenghong Wei, Zaisheng Ye, Jun Xiao, Yi Zeng, Yi Wang, Zhenmeng Lin, Zhitao Lin, Xiaoling Chen
OBJECTIVE: To evaluate the safty and feasibility of the D2 radical resection of omental bursa and No.12p and No.8p for gastric carcinoma (GC). METHODS: Clinical data of 1801 GC patients undergoing D2 radical resection of omental bursa and No.12p and No.8p at Fujian Medical University Cancer Hospital from January 2000 to January 2010 were analyzed retrospectively. Inclusion case criteria: (1)age of 18 to 90 years;(2)pathologically diagnosed as GC and receiving D2 radical resection of omental bursa and No...
February 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29107469/diseases-of-the-retina-and-the-optic-nerve-associated-with-obstructive-sleep-apnea
#4
REVIEW
Marielle Mentek, Florent Aptel, Diane Godin-Ribuot, Renaud Tamisier, Jean-Louis Pepin, Christophe Chiquet
Many associations between ocular disorders and obstructive sleep apnea (OSA) have been studied, such as nonarteritic anterior ischemic optic neuropathy, glaucoma, papilledema, retinal vein occlusion, eyelid hyperlaxity, lower-eyelid ectropion and recurrent corneal erosions. The objective of this review is to synthetize the possible vascular disorders of the retina and the optic nerve associated with sleep apnea patients and to discuss the underlying pathophysiological hypotheses. Main mechanisms involved in the ocular complications of OSA are related to intermittent hypoxia, sympathetic system activation, oxidant stress, and deleterious effects of endothelin 1...
April 2018: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/28942764/ocular-manifestations-of-obstructive-sleep-apnea
#5
REVIEW
Matthew Santos, R Jeffrey Hofmann
STUDY OBJECTIVES: Obstructive sleep apnea (OSA) incurs a host of systemic side effects. The eyes are particularly susceptible to both mechanical and vascular sequelae of the disease. This paper outlines the ocular manifestations of sleep apnea. The authors hope to increase awareness of the ocular complications of this common disorder and increase communication and co-management between eye-care providers and sleep specialists alike. METHODS: Data were collected from PubMed and the Brown University Library Collection...
November 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28740853/prothrombotic-fibrin-clot-phenotype-in-patients-with-deep-vein-thrombosis-and-pulmonary-embolism-a-new-risk-factor-for-recurrence
#6
REVIEW
Anetta Undas
Prothrombotic fibrin clot phenotype, involving faster formation of dense meshwork composed of thinner and highly branched fibers that are relatively resistant to plasmin-induced lysis, has been reported in patients with not only myocardial infarction or stroke, but also venous thromboembolism (VTE), encompassing deep vein thrombosis (DVT), and/or pulmonary embolism (PE). Prothrombotic fibrin clot phenotype, in particular prolonged clot lysis time, is considered a novel risk factor for VTE as well as venous thrombosis at unusual location, for example, cerebral sinus venous thrombosis, retinal vein obstruction, and Budd-Chiari syndrome...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28734812/quantitative-retinal-vascular-changes-in-obstructive-sleep-apnea
#7
Jessica Y Tong, Mojtaba Golzan, Dana Georgevsky, Jonathan P Williamson, Stuart L Graham, Claude S Farah, Clare L Fraser
PURPOSE: To examine the relationship between both static and dynamic retinal vascular caliber and the severity of obstructive sleep apnea (OSA). DESIGN: Prospective cross-sectional study. METHODS: Adult patients undergoing diagnostic polysomnography studies at a private Australian university teaching hospital were recruited. OSA severity was defined by the apnea-hypopnea index (AHI): severe >30, moderate >15-30, mild 5-15, and controls <5...
October 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28345544/retinal-vascular-morphological-changes-in-patients-with-extremely-severe-obstructive-sleep-apnea-syndrome
#8
Xiao-Yi Wang, Shuang Wang, Xue Liu, Xiu Ding, Meng Li, De-Min Han
BACKGROUND: Obstructive sleep apnea syndrome (OSAS) has been shown to generate hypertension and endothelial dysfunction. Retinal vessel is the only vessel that can be observed directly and noninvasively; retinal vascular abnormalities can serve as a predictive marker for the occurrence, clinical course, and prognosis of cardiovascular and cerebrovascular diseases. The objective of this study was to identify the effect of OSAS severity on the morphological changes of retinal vessels. METHODS: Adult patients complained of snoring were included in this study...
April 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28335940/combined-central-retinal-vein-occlusion-and-central-retinal-arterial-obstruction-with-cilioretinal-artery-sparing
#9
Eric D Gaier, John B Miller, John I Loewenstein
No abstract text is available yet for this article.
April 2017: Ophthalmology
https://www.readbyqxmd.com/read/28237415/en-face-optical-coherence-tomography-analysis-to-assess-the-spectrum-of-perivenular-ischemia-and-paracentral-acute-middle-maculopathy-in-retinal-vein-occlusion
#10
MULTICENTER STUDY
Khalil Ghasemi Falavarjani, Nopasak Phasukkijwatana, K Bailey Freund, Emmett T Cunningham, Ananda Kalevar, H Richard McDonald, Rosa Dolz-Marco, Philipp K Roberts, Irena Tsui, Richard Rosen, Lee M Jampol, Srinivas R Sadda, David Sarraf
PURPOSE: To assess the spectrum of perivenular ischemia in eyes with retinal vascular obstruction (typically central or hemicentral retinal vein obstruction) using en face optical coherence tomography (OCT). DESIGN: Retrospective observational case series. METHODS: Eyes with recent retinal vascular occlusion illustrating paracentral acute middle maculopathy (PAMM) in a perivenular fern-like pattern with en face OCT were evaluated in this study...
May 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28085759/surgical-management-of-retinal-detachment-in-osteogenesis-imperfecta-case-report-and-review-of-the-literature
#11
Efrat Fleissig, Adiel Barak
PURPOSE: To describe a case of scleral buckling in a patient with severe (Type III) osteogenesis imperfecta. METHODS: Single interventional case report of a 37-year-old woman, with clinically diagnosed osteogenesis imperfecta Type III, presenting with an inferior retinal detachment of the right eye. The patient was promptly treated with scleral buckling. RESULTS: Long-term follow-up has shown a good clinical outcome, with no recurrence of the retinal detachment...
January 12, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28005776/hyperbaric-oxygen-therapy-to-avoid-blindness-from-filler-injection
#12
REVIEW
Kun Hwang
The most serious complication of filler or fat injection is blindness. According to a recent systematic review of 98 patients of blindness provoked by filler or fat injection, only 2 patients had the outcome of a complete recovery of vision.In the literature, only 2 papers were found in which hyperbaric oxygen therapy (HBOT) was used in ophthalmic artery obstruction. However, no improvement of vision was obtained in either patient. Recently, the authors treated a patient who had central retinal vein occlusion and cilioretinal artery occlusion with HBOT (daily 2-hour sessions at 253 kPa for 14 days), and his visual acuity returned to normal...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27895936/neovascular-glaucoma-a-review
#13
REVIEW
Gustavo B Rodrigues, Ricardo Y Abe, Camila Zangalli, Savio L Sodre, Flavia A Donini, Danilo C Costa, Andre Leite, Joao P Felix, Marcelo Torigoe, Alberto Diniz-Filho, Homero Gusmão de Almeida
Neovascular glaucoma (NVG) is a secondary glaucoma generally associated with poor visual prognosis. The development of new vessels over the iris and the iridocorneal angle can obstruct aqueous humor outflow and lead to increased intraocular pressure. The underlying pathogenesis in most cases is posterior segment ischemia, which is most commonly secondary to proliferative diabetic retinopathy or central vein retinal occlusion. The neovascularization process in the eye is driven by the events that alter the homeostatic balance between pro-angiogenic factors, such as the vascular endothelial growth factor and anti-angiogenic factors, such as the pigment-epithelium-derived factor...
2016: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/27688592/release-of-experimental-retinal-vein-occlusions-by-direct-intraluminal-injection-of-ocriplasmin
#14
Marc D de Smet, Jean Marie Stassen, Thijs C M Meenink, Tom Janssens, Valérie Vanheukelom, Gerrit J L Naus, Maarten J Beelen, Bart Jonckx
PURPOSE: Retinal vein occlusions (RVO) are a major cause of vision loss in people aged 50 years and older. Current therapeutic options limit the consequences of RVO but do not eliminate the cause. Cannulation of the involved vessel and removal of the clot may provide a more permanent solution with a less demanding follow-up. However, cannulation of smaller retinal veins remains challenging. This paper explores the use of ocriplasmin (recombinant plasmin without its kringles) to clear RVO, using a robotic micromanipulator...
December 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27617814/hyperbaric-oxygen-therapy-to-avoid-blindness-from-filler-injection
#15
Kun Hwang
The most serious complication of filler or fat injection is blindness. According to a recent systematic review of 98 patients of blindness provoked by filler or fat injection, only 2 patients had the outcome of a complete recovery of vision.In the literature, only 2 papers were found in which hyperbaric oxygen therapy (HBOT) was used in ophthalmic artery obstruction. However, no improvement of vision was obtained in either patient. Recently, the authors treated a patient who had central retinal vein occlusion and cilioretinal artery occlusion with HBOT (daily 2-hour sessions at 253 kPa for 14 days), and his visual acuity returned to normal...
September 9, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27401776/new-aspect-for-systemic-effects-of-copd-eye-findings
#16
Erhan Ugurlu, Gokhan Pekel, Goksel Altinisik, Kerem Bozkurt, Ilknur Can, Fatma Evyapan
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) has multisystemic implications and comorbidities. Hypoxia and systemic inflammation are thought to involve oculary structures. In this study, our aim is to evaluate retinal nerve fiber and choroidal thickness and retinal vessel diameter using the spectral-domain optical coherence tomography (SD-OCT) in COPD subjects. METHODS: Forty-three subjects diagnosed with COPD according to the Global Initiative for Chronic Obstructive Lung Disease criteria at the Pulmonology Department of Pamukkale University were enrolled in the study...
January 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/27230013/the-association-between-ophthalmologic-diseases-and-obstructive-sleep-apnea-a-systematic-review-and-meta-analysis
#17
REVIEW
Leh-Kiong Huon, Stanley Yung-Chuan Liu, Macario Camacho, Christian Guilleminault
PURPOSE: The purpose of this study was to evaluate the association between obstructive sleep apnea (OSA) and ophthalmologic diseases, specifically glaucoma, nonarteritic anterior ischemic optic neuropathy (NAION), retinal vein occlusion (RVO), central serous chorioretinopathy (CSR), and floppy eyelid syndrome (FES), by performing a systematic review and meta-analysis of published studies. METHODS: PubMed, Embase, and Scopus databases were searched for observational studies on OSA and its association with select ophthalmologic diseases...
December 2016: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/27090882/nd-yag-laser-hyaloidotomy-in-the-management-of-premacular-subhyaloid-hemorrhage
#18
Deepak Khadka, Sanjeeb Bhandari, Sanyam Bajimaya, Raba Thapa, Govinda Paudyal, Eli Pradhan
BACKGROUND: Premacular subhyaloid hemorrhage results in a sudden profound loss of vision. Among the modalities for its treatment, Nd:YAG laser hyaloidotomy is a non invasive method enabling rapid drainage of the obstructed macular area and improved vision within days. This study was aimed to evaluate the efficacy, visual outcome and complications following Nd:YAG laser hyaloidotomy for premacular subhyaloid hemorrhage. METHODS: Patients with premacular subhyaloid hemorrhage of more than 3 disc diameters (DD) of various etiologies, attending Tilganga Institute of Ophthalmology, Nepal from August, 2014 to February, 2015, were included...
April 18, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27051260/obstructive-sleep-apnea-in-patients-with-branch-retinal-vein-occlusion-a-preliminary-study
#19
Hee Jung Kwon, Eui Chun Kang, Junwon Lee, Jinu Han, Won Kyung Song
PURPOSE: Our study aimed to determine whether obstructive sleep apnea (OSA) is common among branch retinal vein occlusion (BRVO) patients without systemic risk factors using a Watch PAT-100 portable monitoring device. METHODS: The study participants included consecutive patients with BRVO of less than 3 months duration without any risk factors known to be associated with OSA (diabetes, coronary artery disease, stroke, hematologic diseases, autoimmune disease, etc...
April 2016: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/26997658/phase-and-amplitude-of-spontaneous-retinal-vein-pulsations-an-extended-constant-inflow-and-variable-outflow-model
#20
David N Levine, Hans Bebie
The constant inflow and variable outflow (CIVO) theory correctly predicts that spontaneous pulsation of the retinal veins will be visible close to the point where the vein exits the eye at the lamina cribrosa but will decrease rapidly in amplitude and become too small to see only a short distance upstream. However, the phase of vein oscillation relative to the oscillation of the intraocular pressure (IOP) predicted by CIVO has been unclear and controversial. We show that the CIVO model is indeterminate in predicting such phase relations...
July 2016: Microvascular Research
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