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      Risk Factors for Refractory Diabetic Macular Oedema after Sub-Tenon's Capsule Triamcinolone Acetonide Injection

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          Abstract

          The purpose of this study is to identify the risk factors for a recurrence or persistence of diabetic macular oedema (DME) after a sub-Tenon's capsule triamcinolone acetonide (STTA) injection. The medical records of 124 patients (124 eyes) treated by STTA were reviewed. The age, sex, HbA1c level, best-corrected visual acuity, central macular thickness, insulin use, pioglitazone use, systemic hypertension, serous retinal detachment, proteinuria, panretinal photocoagulation, microaneurysm photocoagulation (MAPC), subthreshold micropulse diode laser photocoagulation (SMDLP), cataract surgery, and history of vitrectomy were examined by logistic regression analysis. Procedures of MAPC and SMDLP were significantly associated with DME treated with STTA ( P = 0.0315, P = 0.04, resp.). However, a history of vitrectomy was found to have significantly fewer recurrences or persistent DME after STTA ( P = 0.0464). In conclusion, patients who required combined MAPC or SMDLP with a STTA injection had significantly higher refractoriness to STTA, but postvitrectomy may prevent the recurrence or persistence of DME after STTA injection.

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          Contributions of Inflammatory Processes to the Development of the Early Stages of Diabetic Retinopathy

          Timothy Kern (2007)
          Diabetes causes metabolic and physiologic abnormalities in the retina, and these changes suggest a role for inflammation in the development of diabetic retinopathy. These changes include upregulation of iNOS, COX-2, ICAM-1, caspase 1, VEGF, and NF- κ B, increased production of nitric oxide, prostaglandin E2, IL-1 β , and cytokines, as well as increased permeability and leukostasis. Using selective pharmacologic inhibitors or genetically modified animals, an increasing number of therapeutic approaches have been identified that significantly inhibit development of at least the early stages of diabetic retinopathy, especially occlusion and degeneration of retinal capillaries. A common feature of a number of these therapies is that they inhibit production of inflammatory mediators. The concept that localized inflammatory processes play a role in the development of diabetic retinopathy is relatively new, but evidence that supports the hypothesis is accumulating rapidly. This new hypothesis offers new insight into the pathogenesis of diabetic retinopathy, and offers novel targets to inhibit the ocular disease.
          Article 0 comments Cited 204 times – based on 0 reviews     Review now
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            Intravitreal ranibizumab for diabetic macular edema with prompt versus deferred laser treatment: three-year randomized trial results.

            Michael Beck, N Bressler, Caleb Glassman … (2012)
            To report the 3-year follow-up results within a previously reported randomized trial evaluating prompt versus deferred (for ≥24 weeks) focal/grid laser treatment in eyes treated with intravitreal 0.5 mg ranibizumab for diabetic macular edema (DME). Multicenter, randomized clinical trial. Three hundred sixty-one participants with visual acuity of 20/32 to 20/320 (approximate Snellen equivalent) and DME involving the fovea. Ranibizumab every 4 weeks until no longer improving (with resumption if worsening) and random assignment to prompt or deferred (≥24 weeks) focal/grid laser treatment. Best-corrected visual acuity and safety at the 156-week (3-year) visit. The estimated mean change in visual acuity letter score from baseline through the 3-year visit was 2.9 letters more (9.7 vs. 6.8 letters; mean difference, 2.9 letters; 95% confidence interval, 0.4-5.4 letters; P = 0.02) in the deferral group compared with the prompt laser treatment group. In the prompt laser treatment group and deferral group, respectively, the percentage of eyes with a ≥10-letter gain/loss was 42% and 56% (P = 0.02), whereas the respective percentage of eyes with a ≥10-letter gain/loss was 10% and 5% (P = 0.12). Up to the 3-year visit, the median numbers of injections were 12 and 15 in the prompt and deferral groups, respectively (P = 0.007), including 1 and 2 injections, respectively, from the 2-year up to the 3-year visit. At the 3-year visit, the percentages of eyes with central subfield thickness of 250 μm or more on time-domain optical coherence tomography were 36% in both groups (P = 0.90). In the deferral group, 54% did not receive laser treatment during the trial. Systemic adverse events seemed to be similar in the 2 groups. These 3-year results suggest that focal/grid laser treatment at the initiation of intravitreal ranibizumab is no better, and possibly worse, for vision outcomes than deferring laser treatment for 24 weeks or more in eyes with DME involving the fovea and with vision impairment. Some of the observed differences in visual acuity at 3 years may be related to fewer cumulative ranibizumab injections during follow-up in the prompt laser treatment group. Follow-up through 5 years continues. Copyright © 2012 American Academy of Ophthalmology. Published by Elsevier Inc. All rights reserved.
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              The Wisconsin Epidemiologic Study of Diabetic Retinopathy XV

              Karen Cruickshanks, Scot Moss, Barbara Klein … (1995)
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                Author and article information

                Journal
                Journal ID (nlm-ta): J Ophthalmol
                Journal ID (iso-abbrev): J Ophthalmol
                Journal ID (publisher-id): JOPH
                Title: Journal of Ophthalmology
                Publisher: Hindawi Publishing Corporation
                ISSN (Print): 2090-004X
                ISSN (Electronic): 2090-0058
                Publication date (Print): 2015
                Publication date (Electronic): 20 September 2015
                Volume: 2015
                Electronic Location Identifier: 195737
                Affiliations
                Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Inohana 1-8-1, Chuo-ku, Chiba Prefecture, Chiba 260-8670, Japan
                Author notes
                *Toshiyuki Oshitari: tarii@ 123456aol.com

                Academic Editor: Ciro Costagliola

                Article
                DOI: 10.1155/2015/195737
                PMC ID: 4592730
                SO-VID: dba1203f-6412-4ce0-a4a0-3308752bfac9
                Copyright © Copyright © 2015 Toshiyuki Oshitari et al.
                License:

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 5 June 2015
                Date revision received : 5 September 2015
                Date accepted : 6 September 2015
                Categories
                Subject: Research Article

                ScienceOpen disciplines: Ophthalmology & Optometry
                Data availability:
                ScienceOpen disciplines: Ophthalmology & Optometry

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