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https://www.readbyqxmd.com/read/27915327/posterior-retinal-hemorrhages-during-retcam-examination-for-retinopathy-of-prematurity
#1
Parijat Chandra, Rajvardhan Azad
BACKGROUND: Retcam-assisted retinopathy of prematurity (ROP) screening is a commonly used safe examination procedure. CASE CHARACTERISTICS: A preterm baby born at 32 weeks gestation age developed extensive posterior retinal hemorrhages during retinal imaging using the RetCam. OUTCOME: Retinal hemorrhages spontaneously resolved. MESSAGE: As tele screening is becomes more popular, proper training for Retcam usage is essential...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915325/possible-role-of-sildenafil-citrate-in-the-recurrence-of-neovascularization-in-laser-regressed-aggressive-posterior-rop
#2
Chaitra Jayadev, Phanibhushan Ramasastry, Alia Gul, Anand Vinekar
BACKGROUND: Systemic diseases and their treatment influence aggressive posterior retinopathy of prematurity. CASE CHARACTERISTICS: A premature infant with aggressive posterior retinopathy of prematurity underwent laser treatment with a favourable outcome. She was started on oral sidenafil citrate for pulmonary hypertension. Ten days later she developed neovascularization within the lasered retina. INTERVENTION/OUTCOME: Considering the possible role of sildenafil in this unusual development, the drug was withdrawn resulting in regression of the neovascularization...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915322/ocular-morbidity-associated-with-retinopathy-of-prematurity-in-treated-and-untreated-eyes-a-review-of-the-literature-and-data-from-a-tertiary-eye-care-center-in-southern-india
#3
Perumalsamy Vijayalakshmi, Tulika Kara, Clare Gilbert
Retinopathy of prematurity (ROP) is an emerging cause of childhood blindness in low- and middle-income countries. We review the magnitude, causes, prevention and treatment of visual impairment caused by ROP over a time span. A review of literature on short and long term structural and functional outcomes of ROP was conducted through PubMed search primarily focusing on studies published during the last decade. Additionally, we have shared data from our institute located in Southern India. Visual Impairment in ROP-treated children ranged from 4...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915321/anti-vascular-endothelial-growth-factor-preparations-in-the-treatment-of-retinopathy-of-prematurity-balancing-risks-and-benefits
#4
Deepak Chawla, Brian A Darlow
NEED AND PURPOSE OF REVIEW: The standard of management of severe retinopathy of prematurity (ROP) is laser ablation of the peripheral retina. Intra-vitreal injection of anti- vascular endothelial growth factor antibodies has emerged as an alternative modality of treatment of ROP. The purpose of this review is to evaluate the current evidence on benefits and risks of using anti-VEGF antibodies for management of ROP. METHODS: PubMed and Cochrane Register of Clinical Trials were searched for studies evaluating role of anti-VEGF agents in ROP...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915311/can-we-stop-the-current-epidemic-of-blindness-from-retinopathy-of-prematurity
#5
Sourabh Dutta, Talkad Raghuveer, Anand Vinekar, Mangat Ram Dogra
Retinopathy of Prematurity (ROP) is a retinal vascular disease of the premature infant. There have been significant advances in the understanding of the pathogenesis, prevention, detection and treatment of severe ROP. In developed countries, all premature infants at risk for ROP are screened routinely based on national guidelines and treatment is prompt, resulting in good visual outcomes. Blindness from ROP is a rare event in these countries. However, there is an ongoing epidemic of ROP- induced blindness in India...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27915310/retinopathy-of-prematurity-profile-and-trend-over-the-years-experience-from-a-two-tier-city-in-eastern-india
#6
Tapas Ranjan Padhi, Lubhani Jain, Umesh Chandra Behera, Lingaraj Pradhan
The Retinopathy of Prematurity (ROP) epidemic is no more confined to metro cities and has spread to interior states including Eastern India. There is hardly any published data available on the subject, including the incidence and profile of babies with ROP, screening experience with binocular indirect ophthalmoscope and wide-field digital retinal imaging, as well as the difficulties faced with each model. In our cohort, 33.2% had ROP and 25.3% of babies with ROP required treatment. Mean (SD) gestational age and birth weight were 30...
November 7, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27914978/estimating-oct-structural-measurement-floors-to-improve-detection-of-progression-in-advanced-glaucoma
#7
Christopher Bowd, Linda M Zangwill, Robert N Weinreb, Felipe A Medeiros, Akram Belghith
PURPOSE: "Floor effects" in retinal imaging are defined as the points at which no further structural loss can be detected. We estimated the measurement floors for spectral-domain optical coherence tomography (SD-OCT) measurements and compared global change over time in advanced glaucoma eyes. DESIGN: Validity study to investigate measurement floors. METHODS: A longitudinal "Variability Group" of 41 eyes with moderate to advanced glaucoma (SAP MD ≤ -8 dB) was used to estimate measurement floors...
November 30, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27914836/perioperative-retinal-artery-occlusion-risk-factors-in-cardiac-surgery-from-the-united-states-national-inpatient-sample-1998-2013
#8
Tyler Calway, Daniel S Rubin, Heather E Moss, Charlotte E Joslin, Katharina Beckmann, Steven Roth
PURPOSE: To study the incidence and risk factors for retinal artery occlusion (RAO) in cardiac surgery. DESIGN: Retrospective study using the National Inpatient Sample (NIS). METHODS: The NIS was searched for cardiac surgery. Retinal artery occlusion was identified by International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes. Postulated risk factors based on literature review were included in multivariate logistic models...
November 30, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27914762/distribution-of-the-neuro-regulatory-peptide-galanin-in-the-human-eye
#9
Alexandra Kaser-Eichberger, Andrea Trost, Clemens Strohmaier, Barbara Bogner, Christian Runge, Daniela Bruckner, Bettina Hohberger, Anselm Jünemann, Barbara Kofler, Herbert A Reitsamer, Falk Schrödl
Galanin (GAL) is a neuro-regulatory peptide involved in many physiological and pathophysiological processes. While data of GAL origin/distribution in the human eye are rather fragmentary and since recently the presence of GAL-receptors in the normal human eye has been reported, we here systematically search for sources of ocular GAL in the human eye. Human eyes (n=14) were prepared for single- and double-immunohistochemistry of GAL and neurofilaments (NF). Cross- and flat-mount sections were achieved; confocal laser-scanning microscopy was used for documentation...
November 25, 2016: Neuropeptides
https://www.readbyqxmd.com/read/27913912/genetic-counselor-practices-involving-pediatric-patients-with-fap-an-investigation-of-their-self-reported-strategies-for-genetic-testing-and-hepatoblastoma-screening
#10
Caitlin E Lawson, Thomas M Attard, Hongying Dai, Seth Septer
Familial adenomatous polyposis (FAP) is a cancer predisposition syndrome that causes early-onset polyposis and is associated with an increased risk for hepatoblastoma. There is currently a lack of consensus on when to order APC (adenomatous polyposis coli) gene testing or implement surveillance for hepatoblastoma. An online questionnaire was completed by 62 genetic counselors to capture their current practices regarding these questions. Extracolonic findings associated with FAP that were most likely to prompt APC testing in an otherwise asymptomatic 10 year-old child with a negative family history were multiple desmoid tumors, congenital hypertrophy of the retinal pigment epithelium (CHRPE), jaw osteomas, and hepatoblastoma...
December 3, 2016: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/27913654/novel-small-molecule-jp-153-targets-the-src-fak-paxillin-signaling-complex-to-inhibit-vegf-induced-retinal-angiogenesis
#11
Jordan J Toutounchian, Jayaprakash Pagadala, Duane D Miller, Jerome Baudry, Frank Park, Edward Chaum, Charles R Yates
Targeting vascular endothelial growth factor (VEGF) is a common treatment strategy for neovascular eye disease, a major cause of vision loss in diabetic retinopathy and age-related macular degeneration. However, the decline in clinical efficacy over time in many patients suggests that monotherapy of anti-VEGF protein therapeutics may benefit from adjunctive treatments. Our previous work has shown that through decreased activation of the cytoskeletal protein paxillin, growth factor-induced ischemic retinopathy in the murine oxygen-induced retinopathy model could be inhibited...
January 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/27913447/comparison-of-oct-angiography-and-indocyanine-green-angiographic-findings-with-subtypes-of-polypoidal-choroidal-vasculopathy
#12
Koji Tanaka, Ryusaburo Mori, Akiyuki Kawamura, Hiroyuki Nakashizuka, Yu Wakatsuki, Mitsuko Yuzawa
PURPOSE: To compare the findings of optical coherence tomography angiography (OCTA) with indocyanine green angiography (ICGA) in polypoidal choroidal vasculopathy (PCV) that was divided into two types: polypoidal choroidal neovascularisation (CNV) and typical PCV (type 2 PCV). METHODS: We studied a retrospective case series of 32 patients with treatment-naïve PCV (24 men, eight women; mean age 65.4 years). PCV was categorised into polypoidal CNV (type 1 PCV) and type 2 PCV based on ICGA findings...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913445/rate-and-risk-factors-for-the-conversion-of-fovea-on-to-fovea-off-rhegmatogenous-retinal-detachment-while-awaiting-surgery
#13
Andreas Kontos, Tom H Williamson
BACKGROUND/AIMS: Progression of a fovea-on to a fovea-off rhegmatogenous retinal detachment (RRD) while awaiting surgery is rare. METHODS: A retrospective review of patient records to identify patients in whom a fovea-on retinal detachment at presentation was found to be fovea off at surgery. RESULTS: We identified 10 cases over 14 years which converted from fovea-on to fovea-off RRD while awaiting surgery. This represented 1.1% of RRDs that were fovea on at presentation (n=930)...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913444/correlation-of-retinal-arterial-wall-thickness-with-atherosclerosis-predictors-in-type-2-diabetes-without-clinical-retinopathy
#14
Shigeta Arichika, Akihito Uji, Tomoaki Murakami, Kiyoshi Suzuma, Norimoto Gotoh, Nagahisa Yoshimura
AIMS: To evaluate retinal arterial wall thickness (WT) using high-resolution retinal imaging in patients with type 2 diabetes and assess its correlation with risk factors for arteriosclerosis. METHODS: Outer diameter, inner diameter and WT of the retinal artery were measured using adaptive optics scanning laser ophthalmoscopy in 28 patients with type 2 diabetes without clinically apparent diabetic retinopathy and normal volunteers. Laboratory values and intima-media thickness (IMT) in the common carotid artery were measured...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913442/comparison-of-anti-vegf-therapies-on-fibrovascular-pigment-epithelial-detachments-in-age-related-macular-degeneration
#15
Adrian Au, Vishal S Parikh, Rishi P Singh, Justis P Ehlers, Alex Yuan, Aleksandra V Rachitskaya, Jonathan E Sears, Sunil K Srivastava, Peter K Kaiser, Andrew P Schachat, Daniel F Martin, Yasha Modi
BACKGROUND: The aim is to compare the therapeutic effects of three antivascular endothelial growth factor (VEGF) drugs (bevacizumab, aflibercept and ranibizumab) on fibrovascular pigment epithelial detachments (fvPEDs) in age-related macular degeneration (AMD). METHODS: This was a retrospective, comparative, consecutive case series of 88 unique eyes with fvPEDs in neovascular AMD treated with anti-VEGF monotherapy for a minimum of 6 months. All eyes were treatment naive...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913440/optical-coherence-tomographic-angiography-of-choroidal-neovascularization-ill-defined-with-fluorescein-angiography
#16
Mehrdad Malihi, Yali Jia, Simon S Gao, Christina Flaxel, Andreas K Lauer, Thomas Hwang, David J Wilson, David Huang, Steven T Bailey
PURPOSE: To evaluate the morphological structure of ill-defined choroidal neovascularisation (CNV) with traditional fluorescein angiography (FA) compared with optical coherence tomographic angiography (OCTA). METHODS: A retrospective case series study of 11 eyes with ill-defined CNV on FA was performed. Eyes were scanned with commercially available spectral-domain optical coherence tomography (OCT) (70 000 A-scans/s). The split-spectrum amplitude-decorrelation angiography (SSADA) algorithm was used to distinguish blood flow from static tissue...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913439/retinitis-pigmentosa-associated-cystoid-macular-oedema-pathogenesis-and-avenues-of-intervention
#17
REVIEW
S Strong, G Liew, M Michaelides
Hereditary retinal diseases are now the leading cause of blindness certification in the working age population (age 16-64 years) in England and Wales, of which retinitis pigmentosa (RP) is the most common disorder. RP may be complicated by cystoid macular oedema (CMO), causing a reduction of central vision. The underlying pathogenesis of RP-associated CMO (RP-CMO) remains uncertain, however, several mechanisms have been proposed, including: (1) breakdown of the blood-retinal barrier, (2) failure (or dysfunction) of the pumping mechanism in the retinal pigment epithelial, (3) Müller cell oedema and dysfunction, (4) antiretinal antibodies and (5) vitreous traction...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913110/downregulated-brain-derived-neurotrophic-factor-induced-oxidative-stress-in-the-pathophysiology-of-diabetic-retinopathy
#18
REVIEW
Tapan Behl, Anita Kotwani
Brain-derived neurotrophic factor (BDNF), a member of neurotrophin growth factor family, physiologically mediates induction of neurogenesis and neuronal differentiation, promotes neuronal growth and survival and maintains synaptic plasticity and neuronal interconnections. Unlike the central nervous system, its secretion in the peripheral nervous system occurs in an activity-dependent manner. BDNF improves neuronal mortality, growth, differentiation and maintenance. It also provides neuroprotection against several noxious stimuli, thereby preventing neuronal damage during pathologic conditions...
November 29, 2016: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/27912129/incidence-of-complications-in-young-onset-diabetes-comparing-type-2-with-type-1-the-young-diab-study
#19
Anandakumar Amutha, Ranjit Mohan Anjana, Ulagamathesan Venkatesan, Harish Ranjani, Ranjit Unnikrishnan, K M Venkat Narayan, Viswanathan Mohan, Mohammed K Ali
BACKGROUND: There is little data on the incidence of diabetes complications in young onset type 1 diabetes (T1DM) and type 2 diabetes (T2DM) in non European populations. METHODS: From a tertiary diabetes centre, Chennai, India, we recruited 108 T1DM (defined by abrupt onset of symptoms or diabetic ketoacidosis, absent insulin reserve requiring insulin treatment) and 90 T2DM participants (defined by absence of ketosis, good beta-cell reserve, and good response to oral agents) who were diagnosed between the ages of 10 and 25years, and without any evidence of diabetes complications at diagnosis...
November 17, 2016: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/27911838/antagonists-of-growth-hormone-releasing-hormone-receptor-induce-apoptosis-specifically-in-retinoblastoma-cells
#20
Wai Kit Chu, Ka Sin Law, Sun On Chan, Jason Cheuk Sing Yam, Li Jia Chen, Hao Zhang, Herman S Cheung, Norman L Block, Andrew V Schally, Chi Pui Pang
Retinoblastoma (RB) is the most common intraocular cancer in children worldwide. Current treatments mainly involve combinations of chemotherapies, cryotherapies, and laser-based therapies. Severe or late-stage disease may require enucleation or lead to fatality. Recently, RB has been shown to arise from cone precursor cells, which have high MDM2 levels to suppress p53-mediated apoptosis. This finding leads to the hypothesis that restoring apoptosis mechanisms in RBs could specifically kill the cancer cells without affecting other retinal cells...
November 23, 2016: Proceedings of the National Academy of Sciences of the United States of America
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