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Retinal vascular disease

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https://www.readbyqxmd.com/read/28534795/choroid-neovascularization-growth-prediction-with-treatment-based-on-reaction-diffusion-model-in-3d-oct-images
#1
Shuxia Zhu, Fei Shi, Dehui Xiang, Weifang Zhu, Haoyu Chen, Xinjian Chen
Choroid neovascularization (CNV) is caused by new blood vessels growing in the choroid and penetrating the Bruch membrane. It is the major cause of vision disability in many retinal diseases. Though anti-vascular endothelial growth factor (VEGF) injection has proved to be effective for treating CNV, treatment planning is essential to ensure the efficacy while reducing the risk. For this purpose, we propose a CNV growth model based on longitudinal Optical Coherence Tomography (OCT) images. The reaction-diffusion model is applied to simulate the growth and shrinkage of CNV volumes, and is solved by using finite element method (FEM)...
May 16, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28532448/the-effects-of-a-treatment-combination-of-anti-vegf-injections-laser-coagulation-and-cryotherapy-on-patients-with-type-3-coat-s-disease
#2
Songfeng Li, Guangda Deng, Jinghua Liu, Yan Ma, Hai Lu
BACKGROUND: To examined the curative effect of vitreous injection with ranibizumab,laser coagulation and cryotherapy in treating stage 3 Coats' disease with exudative retinal detachment. METHODS: Seventeen patients with stage 3 Coats' disease were enrolled in the study. All eyes were treated with vitreous injection of ranibizumab as initial treatment, and subsequent treatment depended on the absorption of subretinal fluid, Including cryotherapy and laser photocoagulation...
May 22, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28527040/fundamental-principles-of-an-anti-vegf-treatment-regimen-optimal-application-of-intravitreal-anti-vascular-endothelial-growth-factor-therapy-of-macular-diseases
#3
REVIEW
Paolo Lanzetta, Anat Loewenstein
BACKGROUND: Intravitreal anti-vascular endothelial growth factor (VEGF) therapy is now considered the gold standard for the treatment of various retinal disorders. As therapy has evolved, so too have the treatment regimens employed by physicians in clinical practice; however, visual outcomes observed in the real world have typically not reflected those reported in clinical trials. Possible reasons for this include a lack of consensus on treatment regimens and a lack of clarity about what the aims of treatment should be...
May 19, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28525681/unveiling-idiopathic-macular-telangiectasia-clinical-applications-of-optical-coherence-tomography-angiography
#4
Marco A Gonzalez, Diana Shechtman, Jay M Haynie, Leo Semes
PURPOSE: Idiopathic macular telangiectasia type 2 (IMT2) is a bilateral acquired maculopathy, with a spectrum of clinical presentations associated with inner retinal telangiectatic vascular anomalies. Cases often are underdiagnosed or misdiagnosed. Current diagnostic modalities such as spectral-domain optical coherence tomography (SD-OCT) and fluorescein angiography (FA) are valuable to the understanding of the clinicopathology. More recently, optical coherence tomography angiography (OCTA), as an emerging noninvasive technology, has been shown to be particularly useful in the assessment and management of IMT2...
May 19, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28524151/-etiopathogenesis-of-ocular-ischemic-syndrome
#5
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/28515072/%C3%AF-3-and-%C3%AF-6-long-chain-pufas-and-their-enzymatic-metabolites-in-neovascular-eye-diseases
#6
REVIEW
Yan Gong, Zhongjie Fu, Raffael Liegl, Jing Chen, Ann Hellström, Lois Eh Smith
Neovascular eye diseases, including retinopathy of prematurity, diabetic retinopathy, and age-related macular degeneration, threaten the visual health of children and adults. Current treatment options, including anti-vascular endothelial growth factor therapy and laser retinal photocoagulation, have limitations and are associated with adverse effects; therefore, the identification of additional therapies is highly desirable. Both clinical and experimental studies show that dietary ω-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFAs) reduce retinal and choroidal angiogenesis...
May 17, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28509723/determinants-of-retinal-microvascular-features-and-their-relationships-in-two-european-populations
#7
Mirna Kirin, Reka Nagy, Thomas J MacGillivray, Ozren Polašek, Caroline Hayward, Igor Rudan, Harry Campbell, Sarah Wild, Alan F Wright, James F Wilson, Veronique Vitart
OBJECTIVES: To examine factors influencing retinal vasculature in two environmentally contrasted, cross-sectional studies of adult participants of European descent and to estimate the extent and specificity of genetic contributions to each retinal vasculature feature. METHODS: Retinal images from 1088 participants in the Orkney Complex Disease Study and 387 in the CROATIA-Korčula study, taken using the same nonmydriatic camera system and graded by the same person, were evaluated...
May 13, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28507532/spectral-domain-optical-coherence-tomography-as-a-new-diagnostic-marker-for-idiopathic-normal-pressure-hydrocephalus
#8
Joana M Afonso, Manuel Falcão, Frank Schlichtenbrede, Fernando Falcão-Reis, Sérgio Estrela Silva, Till M Schneider
PURPOSE: Characterized by a progressive onset of gait disturbances, dementia, and urinary incontinence, idiopathic normal pressure hydrocephalus (iNPH) is considered a rare, but under-diagnosed disease. Non-invasive diagnostic markers are still insufficient to enable the diagnosis of iNPH with certainty and yet early treatment with ventriculoperitoneal (VP) shunting can reverse symptoms and stop disease progression. Vascular circulation abnormalities in iNPH may be reflected by changes in subfoveal and peripapillary choroidal thickness (PPChT)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28506603/exudative-retinal-detachment
#9
REVIEW
Radgonde Amer, Hilal Nalcı, Nilüfer Yalçındağ
Exudative retinal detachment (ERD) develops when fluid collects in the subretinal space. The subretinal space between the photoreceptors and the retinal pigment epithelium is the remnant of the embryonic optic vesicle. In the developed eye the subretinal space is of minimal size, but it can re-open under pathological conditions that disrupt the integrity of blood-retinal barrier (BRB). Inflammatory, infectious, infiltrative, neoplastic, vascular and degenerative conditions may be associated with BRB breakdown and the sequential development of ERD...
May 12, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28505063/retinal-vessel-metrics-normative-data-and-their-use-in-systemic-hypertension-results-from-the-gutenberg-health-study
#10
Katharina A Ponto, David J Werner, Linn Wiedemer, Dagmar Laubert-Reh, Alexander K Schuster, Stefan Nickels, René Höhn, Andreas Schulz, Harald Binder, Manfred Beutel, Karl J Lackner, Philipp S Wild, Norbert Pfeiffer, Alireza Mirshahi
PURPOSE OF REVIEW: In-vivo measurement of retinal vascular calibers may be used as a tool to study the pathophysiology and clinical status of the microvasculature of the retina. The aim of this study was to generate normative data for retinal vessel parameters, and to evaluate the clinical relevance in systemic hypertension. METHODS: Fundus photographs from 4309 participants of the Gutenberg Health Study were assessed using the 'retinal vessel analyzer' software (IMEDOS)...
May 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28504505/retinovascular-findings-in-newborns-with-critical-congenital-heart-disease-a-case-series
#11
Nurdan Fettah, Emrah U Kabatas, Vehbi Doğan, Aysegu L Zenciroğlu, Dilek Dilli, Elif Özyazıcı, Murat Koç, Serdar Beken, Arzu Dursun, Selmin Kandemir
Critical congenital heart disease (CCHD) may cause changes in retinal vasculature. However, there is lack of data in this issue in newborns. We evaluated retinovascular changes in a series of 43 newborn with CCHD. They were divided into 2 groups according to the type of CCHD; group 1 (n= 18): left obstructive CCHD and group 2 (n= 25): right obstructive CCHD. Retinovascular pathologies were detected in 21 patients (48.8%); it was more frequent in group 1 (p= 0.04). The most common pathology was retinal vascular tortuosity in 6 patients (33...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28500127/the-efficacy-of-hyperbaric-oxygen-therapy-in-the-treatment-of-central-retinal-artery-occlusion
#12
Andreia Soares, Nuno L Gomes, Luís Mendonça, Carla Ferreira
Central retinal artery occlusion (CRAO) is an ophthalmological emergency. Various treatment modalities have been tried, but none have shown to alter natural history of the disease. Hyperoxia can restore retinal oxygenation, and favourable results were obtained with hyperbaric oxygen therapy (HBOT). We report two patients with sudden visual loss due to CRAO treated with HBOT. Case 1: a 61-year-old female, presented with CRAO in her left eye(OS). She was submitted to eight sessions of HBOT(2.4atmosphere absolute (ATA))...
May 12, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28497336/the-overlapping-spectrum-of-flat-irregular-pigment-epithelial-detachment-investigated-by-optical-coherence-tomography-angiography
#13
Francesco Pichi, Mariachiara Morara, Chiara Veronese, Antonio P Ciardella
PURPOSE: To describe the OCT angiography characteristics of flat irregular pigment epithelial detachments (PEDs), an overlapping tomographic feature of various macular disorders. METHODS: Consecutive patients with a dimpled retinal pigment epithelium profile on OCT, referred for a second opinion, were enrolled. Fluorescein (FA) and indocyanine green angiography (ICGA) were performed in all patients and compared to previous examinations, when available. In all patients, enhanced depth imaging-OCT and OCT angiography were performed upon referral and at subsequent follow-ups...
May 11, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28496373/multimodal-images-of-chronic-branch-retinal-vein-occlusion
#14
Stephen G Schwartz, Armando Monroig, Harry W Flynn
Two illustrative cases of chronic branch retinal vein occlusion are presented with multimodal imaging, including commercially available optical coherence tomography angiography. In these two patients, retinal ischemia and collateral vessels were well imaged without the need to use traditional fluorescein angiography. Optical coherence tomography angiography provides useful information for the diagnosis and management of patients with branch retinal vein occlusion and other retinal vascular diseases.
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28494495/mutations-in-lrp5-fzd4-tspan12-ndp-znf408-or-kif11-genes-account-for-38-7-of-chinese-patients-with-familial-exudative-vitreoretinopathy
#15
Feng-Qin Rao, Xue-Bi Cai, Fei-Fei Cheng, Wan Cheng, Xiao-Long Fang, Na Li, Xiu-Feng Huang, Li-Hong Li, Zi-Bing Jin
Purpose: Familial exudative vitreoretinopathy (FEVR) is a severe hereditary retinal disorder characterized by defects in retinal vascular development. To date, six genes have been reported to be responsible for this disease, including LRP5, FZD4, TSPAN12, NDP, ZNF408, and KIF11. The purpose of our study was to investigate the genetic defects in Chinese patients with FEVR through mutational analyses of 31 pedigrees. Methods: Clinical data and peripheral blood were collected from 31 pedigrees with FEVR...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28492434/longitudinal-change-of-outer-nuclear-layer-after-retinal-pigment-epithelial-tear-secondary-to-age-related-macular-degeneration
#16
Akio Oishi, Petra P Fang, Sarah Thiele, Frank G Holz, Tim U Krohne
PURPOSE: To investigate longitudinal changes of outer nuclear layer (ONL) thickness in patients with retinal pigment epithelium tears secondary to neovascular age-related macular degeneration. METHODS: This is an institutional retrospective interventional case series. Twenty-six eyes of 22 patients with retinal pigment epithelium tears identified between April 2009 and March 2015. The patients underwent intravitreal injection of anti-vascular endothelial growth factor agents as needed...
May 10, 2017: Retina
https://www.readbyqxmd.com/read/28492432/vascular-distortion-and-dragging-related-to-apparent-tissue-contraction-in-macular-telangiectasis-type-2
#17
Richard F Spaide, Rosa D Marco, Lawrence A Yannuzzi
PURPOSE: To examine the alterations in retinal vascular morphology over an extended follow-up in eyes with macular telangiectasis Type 2 (MacTel2). METHODS: Eyes with high-quality digital photographs were evaluated. The geometric distortion in baseline images required to emulate the follow-up images was determined and vectors were made that represented the direction and magnitude of changes, to create a warp field. Optical coherence tomography and optical coherence tomography angiography evaluation of the retina was performed...
May 10, 2017: Retina
https://www.readbyqxmd.com/read/28491481/retinal-artery-occlusion-secondary-to-buerger-s-disease-thromboangiitis-obliterans
#18
Erdem Eris, Mehmet Emin Sucu, Irfan Perente, Zeynep Alkın, Abdullah Ozkaya, Hatice Nur Tarakcioglu
Purpose. To report a case report of one patient suffering from retinal artery occlusion secondary to Buerger's disease, in order to raise awareness to this etiology in the differential diagnosis of retinal artery occlusion. Methods. A retrospective case report of a patient with retinal artery occlusion secondary to Buerger's disease. Data retrieved from the medical records included exposure, complaints, visual acuity, clinical findings and imaging, laboratory assessment, treatment, disease course, and visual outcome...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/28486987/progress-of-stem-progenitor-cell-based-therapy-for-retinal-degeneration
#19
REVIEW
Zhimin Tang, Yi Zhang, Yuyao Wang, Dandan Zhang, Bingqiao Shen, Min Luo, Ping Gu
Retinal degeneration (RD), such as age-related macular degeneration (AMD) and retinitis pigmentosa, is one of the leading causes of blindness. Presently, no satisfactory therapeutic options are available for these diseases principally because the retina and retinal pigmented epithelium (RPE) do not regenerate, although wet AMD can be prevented from further progression by anti-vascular endothelial growth factor therapy. Nevertheless, stem/progenitor cell approaches exhibit enormous potential for RD treatment using strategies mainly aimed at the rescue and replacement of photoreceptors and RPE...
May 10, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28474838/connective-tissue-growth-factor-promotes-efficient-generation-of-human-induced-pluripotent-stem-cell-derived-choroidal-endothelium
#20
Allison E Songstad, Kristan S Worthington, Kathleen R Chirco, Joseph C Giacalone, S Scott Whitmore, Kristin R Anfinson, Dalyz Ochoa, Cathryn M Cranston, Megan J Riker, Maurine Neiman, Edwin M Stone, Robert F Mullins, Budd A Tucker
Age-related macular degeneration (AMD) is a leading cause of irreversible blindness in the Western world. Although, the majority of stem cell research to date has focused on production of retinal pigment epithelial (RPE) and photoreceptor cells for the purpose of evaluating disease pathophysiology and cell replacement, there is strong evidence that the choroidal endothelial cells (CECs) that form the choriocapillaris vessels are the first to be lost in this disease. As such, to accurately evaluate disease pathophysiology and develop an effective treatment, production of patient-specific, stem cell-derived CECs will be required...
May 5, 2017: Stem Cells Translational Medicine
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