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Teixeira C, Pessoa B, Ruão M, Sousa JPC, Penas S, Silva R, Carneiro Â, Meireles A. ILUVIEN ® in diabetic macular edema that persists or recurs despite treatment: Results from the Retina.pt ® RIVER audit. Eur J Ophthalmol 2024; 34:1149-1158. [PMID: 38013451 DOI: 10.1177/11206721231217525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
PURPOSE Persistent diabetic macular edema (DME) remains a problem in clinical practice, with many patients having a suboptimal response to the standard of care (SOC). Evidence supports the long-term efficacy of intravitreal fluocinolone acetonide (FAc) implant (ILUVIEN®) in patients that have responded sub-optimally, although there is still scarce data from real-world Portuguese practices. We aimed to monitor the current SOC in selected Portuguese practices prior to FAc implantation and then assess the long-term effectiveness and safety of the FAc implant. SETTINGS The study included patient data from five Portuguese public hospitals. DESIGN This was a non-interventional, multicenter audit of data collected from Retina.pt registry from patients with persistent or recurrent DME despite treatment. METHODS Outcome measures included changes in best-corrected visual acuity (BCVA), central macular thickness (CMT), and intraocular pressure (IOP). Results were compared at regular times over 36 months. RESULTS This study included 222 eyes from 152 patients. A significant decrease in BCVA (P < 0.001) and a significant increase in CMT (P = 0.013) were observed prior to FAc. A significant increase in BCVA was registered at 6 months after FAc implant administration (P < 0.001), which was maintained during follow-up. No relevant changes in IOP were observed. Treatment burden was reduced as a result of treatment with FAc (P < 0.001 for anti-VEGF, corticosteroids, or both treatments) in the full population. CONCLUSIONS In Portuguese practice, data showed that pre-FAc implantation, some patients did not respond to SOC treatment and/or they were undertreated. Following FAc implant administration, there were rapid, sustained, long-term visual and anatomical improvements, and a marked reduction in treatment burden.
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Affiliation(s)
- Carla Teixeira
- Department of Ophthalmology of Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Porto, Portugal
| | - Bernardete Pessoa
- Diabetes Ocular Department of Centro Hospitalar e Universitário de Santo António (CHUdSA), Porto, Portugal
- Department of Ophthalmology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute for the Biomedical Sciences Abel Salazar from University of Porto (UMIB ICBAS - UP), Porto, Portugal
| | - Miguel Ruão
- Department of Ophthalmology of Centro Hospitalar entre Douro e Vouga, Santa Maria da Feira, Portugal
| | | | - Susana Penas
- Department of Ophthalmology of Centro Hospitalar Universitário de São João (CHUSJ), E.P.E., Porto, Portugal
- Department of Ophthalmology of Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Rufino Silva
- Department of Ophthalmology, Ophthalmology Clinic, Faculty of Medicine of the University of Coimbra (FMUC), Coimbra, Portugal
- Department of Ophthalmology of Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
- Department of Ophthalmology, Coimbra, Centro Académico Clínico de Coimbra (CACC), Coimbra, Portugal
| | - Ângela Carneiro
- Department of Ophthalmology of Centro Hospitalar Universitário de São João (CHUSJ), E.P.E., Porto, Portugal
| | - Angelina Meireles
- Department of Ophthalmology of Centro Hospitalar e Universitário de Santo António (CHUdSA), Porto, Portugal
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Szeto SK, Lai TY, Vujosevic S, Sun JK, Sadda SR, Tan G, Sivaprasad S, Wong TY, Cheung CY. Optical coherence tomography in the management of diabetic macular oedema. Prog Retin Eye Res 2024; 98:101220. [PMID: 37944588 DOI: 10.1016/j.preteyeres.2023.101220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023]
Abstract
Diabetic macular oedema (DMO) is the major cause of visual impairment in people with diabetes. Optical coherence tomography (OCT) is now the most widely used modality to assess presence and severity of DMO. DMO is currently broadly classified based on the involvement to the central 1 mm of the macula into non-centre or centre involved DMO (CI-DMO) and DMO can occur with or without visual acuity (VA) loss. This classification forms the basis of management strategies of DMO. Despite years of research on quantitative and qualitative DMO related features assessed by OCT, these do not fully inform physicians of the prognosis and severity of DMO relative to visual function. Having said that, recent research on novel OCT biomarkers development and re-defined classification of DMO show better correlation with visual function and treatment response. This review summarises the current evidence of the association of OCT biomarkers in DMO management and its potential clinical importance in predicting VA and anatomical treatment response. The review also discusses some future directions in this field, such as the use of artificial intelligence to quantify and monitor OCT biomarkers and retinal fluid and identify phenotypes of DMO, and the need for standardisation and classification of OCT biomarkers to use in future clinical trials and clinical practice settings as prognostic markers and secondary treatment outcome measures in the management of DMO.
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Affiliation(s)
- Simon Kh Szeto
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Timothy Yy Lai
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Stela Vujosevic
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy; Eye Clinic, IRCCS MultiMedica, Milan, Italy
| | - Jennifer K Sun
- Beetham Eye Institute, Harvard Medical School, Boston, USA
| | - SriniVas R Sadda
- Doheny Eye Institute, University of California Los Angeles, Los Angeles, USA
| | - Gavin Tan
- Singapore Eye Research Institute, SingHealth Duke-National University of Singapore, Singapore
| | - Sobha Sivaprasad
- NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Tien Y Wong
- Tsinghua Medicine, Tsinghua University, Beijing, China; Singapore Eye Research Institute, Singapore
| | - Carol Y Cheung
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China.
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Myslík Manethová K. Central Serous Chorioretinopathy. A Review. CESKA A SLOVENSKA OFTALMOLOGIE : CASOPIS CESKE OFTALMOLOGICKE SPOLECNOSTI A SLOVENSKE OFTALMOLOGICKE SPOLECNOSTI 2024; 80:59-75. [PMID: 38531681 DOI: 10.31348/2023/27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Central serous chorioretinopathy (CSC) is a disease characterized by serous detachment of the neuroretina, especially in the posterior pole of the eye. It is often accompanied by serous detachment of the retinal pigment epithelium (RPE) and associated with the leakage of fluid into the subretinal space through the defective RPE. CSC most often affects men of working age. The exact pathophysiology of the disease is not completely known. Based on indocyanine green angiography (ICG), which revealed increased permeability of choroidal vessels, and optical coherence tomography (OCT) showing increased choroidal thickness, choroidal vasculopathy is assumed to be the primary cause of CSC. In most cases, CSC has a good prognosis with spontaneous resorption of the subretinal fluid (SRF) and improvement of visual functions. However, in a small percentage of patients the disease progresses to a chronic or recurrent course, and can lead to irreversible functional and anatomical changes of the retina with a final clinical picture of diffuse retinal pigment epitheliopathy (DRPE). The optimal treatment approach for patients with CSC remains controversial. In recent decades, myriad therapeutic approaches have been used in the treatment of chronic forms of CSC (cCSC); these included for example laser photocoagulation, pharmaceutical treatment, standard photodynamic therapy (PDT) or anti-VEGF. In recent years a less destructive method, specifically PDT in reduced dose regimens, either with a reduced dose of verteporfin or the laser beam energy used, has been preferred in the treatment of cCSC. Comparable efficacy and safety has been demonstrated using reduced-dose or reduced-fluence PDT regimens in patients with cCSC, with an improvement in best-corrected visual acuity and reduction of SRF.
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Rennie C, Lotery A, Payne J, Singh M, Ghanchi F. Suboptimal outcomes and treatment burden of anti-vascular endothelial growth factor treatment for diabetic macular oedema in phakic patients. Eye (Lond) 2024; 38:215-223. [PMID: 37542174 PMCID: PMC10764926 DOI: 10.1038/s41433-023-02667-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 06/27/2023] [Accepted: 07/14/2023] [Indexed: 08/06/2023] Open
Abstract
OBJECTIVES In England and Wales, treatment options were limited for patients with diabetic macular oedema (DMO) with phakic eyes that failed anti-vascular endothelial growth factor (anti-VEGF) treatment pre-2022. This study aimed to quantify the response to, and treatment burden of, anti-VEGF treatment in phakic eyes. METHODS Retrospective, cohort study using electronic patient record data from two UK centres between 2015 and 2020. Primary objective was proportion of phakic eyes with a suboptimal response after initial 6 months of anti-VEGF treatment. Data were available for 500 eyes from 399 patients. RESULTS At 6 months significantly more eyes had a suboptimal response to anti-VEGF treatment: 65.8% (95% CI 61.5-70.0%) vs 34.2% (95% CI 30.0-38.5%), p < 0.0001. Baseline visual acuity (VA) predicted VA outcome, however, despite greater gains in eyes with poorer VA, such eyes did not achieve the same VA levels as those who started treatment with better VA. Only 53.6% of eyes had more than three injections in the first 6 months indicating difficulties in delivering high volume/high frequency treatment. Treatment and review burden were similar over the following years regardless of response to anti-VEGF treatment. CONCLUSIONS Data confirm previous real world evidence around response to anti-VEGF treatment, importance of baseline VA and frequency of injections in predicting outcomes in a UK setting. Continuing treatment beyond 6 months in suboptimal responders imposes unnecessary treatment burden without significant change in VA. In suboptimal responders, consideration of early switch to longer acting steroid treatments may help to reduce treatment burden, whilst maintaining or improving vision.
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Affiliation(s)
- Christina Rennie
- University Hospital Southampton NHS Foundation Trust, Southampton, UK.
| | - Andrew Lotery
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Jo Payne
- AbbVie Ltd, AbbVie House, Vanwall Business Park, Maidenhead, UK
| | - Moushmi Singh
- AbbVie Ltd, AbbVie House, Vanwall Business Park, Maidenhead, UK
| | - Faruque Ghanchi
- Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
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Mihalache A, Hatamnejad A, Patil NS, Popovic MM, Kertes PJ, Cruz-Pimentel M, Muni RH. Intravitreal Triamcinolone Acetonide for Diabetic Macular Edema and Macular Edema Secondary to Retinal Vein Occlusion: A Meta-Analysis. Ophthalmologica 2023; 247:19-29. [PMID: 37579730 PMCID: PMC10836924 DOI: 10.1159/000533443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 08/03/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND The comparative safety and efficacy of different doses of intravitreal triamcinolone acetonide (IVTA) for diabetic macular edema (DME) and macular edema (ME) secondary to retinal vein occlusion (RVO) is unclear. OBJECTIVES This meta-analysis aimed to compare the safety and efficacy of different doses of IVTA in this setting. METHODS A systematic literature search for randomized clinical trials (RCTs) was conducted on Cochrane Library, Ovid MEDLINE, and EMBASE from January 2005 to May 2022. Studies that reported on patients with DME or ME secondary to RVO that received treatment with different doses of IVTA were included. A random-effects meta-analysis was performed. Cochrane's Risk of Bias Tool 2 was used to assess the risk of bias, and Grading of Recommendations, Assessment, Development and Evaluation (GRADE) guidelines were used to assess certainty of evidence. RESULTS Five RCTs reporting on 1,041 eyes at baseline were included in this meta-analysis. In eyes with ME secondary to RVO, high-dose (4 mg) IVTA achieved a significantly better change in best-corrected visual acuity (WMD = -4.75 ETDRS letters, 95% CI = [-7.73, -1.78], p = 0.002) and reduction in retinal thickness (WMD = -93.02 μm, 95% CI = [-153.23, -32.82], p = 0.002) at months 4-6 compared to low-dose (1-2 mg) IVTA. However, high-dose IVTA had a higher risk of intraocular pressure-related adverse events (RR = 2.99, 95% CI = [1.05, 8.50], p = 0.04) and cataract surgery (RR = 5.67, 95% CI = [3.09, 10.41], p < 0.00001) than low-dose IVTA in eyes with ME secondary to RVO. These efficacy and safety differences in high-dose and low-dose IVTA were not observed in DME eyes. CONCLUSIONS The RCT evidence in this setting is limited. High-dose IVTA achieved greater improvements in visual acuity and reductions in retinal thickness than low-dose IVTA at months 4-6. However, high-dose IVTA had a less favorable safety profile than low-dose IVTA. The significance of these outcomes was based on patients with ME secondary to RVO, but not DME.
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Affiliation(s)
- Andrew Mihalache
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada,
| | - Amin Hatamnejad
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Nikhil S Patil
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Marko M Popovic
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Peter J Kertes
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
- John and Liz Tory Eye Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Miguel Cruz-Pimentel
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Rajeev H Muni
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
- Department of Ophthalmology, St. Michael's Hospital/Unity Health Toronto, Toronto, Ontario, Canada
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Roan VD, Kuo BL, Liu BJ, Valentim CCS, Singh RP. Macular Thickness Fluctuations in Eyes With Diabetic Macular Edema Treated With Intravitreal Steroid. Ophthalmic Surg Lasers Imaging Retina 2023; 54:454-460. [PMID: 37535650 DOI: 10.3928/23258160-20230615-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
BACKGROUND AND OBJECTIVE Macular thickness fluctuations (MTF) over time may be more predictive of visual outcomes than absolute macular thickness in patients with diabetic macular edema (DME) treated with anti-vascular endothelial growth factor (anti-VEGF). It is unclear whether this association exists in DME patients treated with intravitreal steroids or whether steroids confer reduced MTF versus anti-VEGF treatments. PATIENTS AND METHODS MTF was compared before and after initiation of steroids in DME patients treated with intravitreal steroids. A mixed-effects linear regression model was used to determine the association between MTF and best-corrected visual acuity (BCVA). RESULTS Mean 12-month MTF significantly decreased after steroid initiation (61.1 μm versus 53.5 μm, P = 0.04, n = 105 eyes). Mean BCVA after 12 months was not significantly different from baseline. No significant association between post-steroid MTF and 12-month BCVA was found. CONCLUSION Steroid treatment decreases MTF while BCVA remains stable in DME patients previously treated with anti-VEGF. [Ophthalmic Surg Lasers Imaging Retina 2023;54:454-460.].
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Somani S, Koushan K, Shah-Manek B, Mercer D, Kanagenthiran T, Zhao C, Alobaidi A. Characteristics and Treatment Patterns of Patients with Diabetic Macular Edema Non-Responsive to Anti-Vascular Endothelial Growth Factor Treatment in Ontario, Canada. Clin Ophthalmol 2023; 17:2013-2025. [PMID: 37483842 PMCID: PMC10361277 DOI: 10.2147/opth.s399981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 05/17/2023] [Indexed: 07/25/2023] Open
Abstract
Purpose To understand the demographics, clinical characteristics, treatment patterns, visual and anatomic responses of patients with diabetic macular edema (DME) initially treated with anti-vascular endothelial growth factor (anti-VEGF) agents in the real-world clinical setting. Patients and Methods This retrospective cohort study used electronic health records to identify consecutively presenting patients with DME who received their first documented anti-VEGF injection (index injection) on or after 1 October 2015 and before 30 September 2016 (index period) at 4 clinical sites in Ontario, Canada. Patients receiving anti-VEGF injections in the study eye were followed for ≥18 months. After the first 3 monthly injections, patients were classified as "responder" (≥20% reduction in central retinal thickness [CRT] from index date) or "nonresponder" (<20% reduction in CRT) to anti-VEGF treatment. Results At 12 months, change from baseline (CFB) in best visual acuity (BVA) of responders (n = 30) was mean (SD) 12.8 (13.00) letters; CFB in nonresponders (n = 56) was 3.2 (16.3) letters. Sensitivity analyses stratified by initial BVA were supportive. Mean (SD) change in CRT (μm) was -160.4 (111.4) in responders and -62.2 (98.6) in nonresponders. While changes in anti-VEGF therapy were lower in responders versus nonresponders (10.0% vs 23.2%), mean number of injections was similar (8.3 in each cohort). Conclusion Despite receiving a substantial number of injections and requiring changes in therapy more frequently, nonresponders showed a lack of clinically meaningful change in BVA and CRT. Nonresponders could be identified after 3 anti-VEGF injections. There remains an unmet need for treatment options in patients with DME who show a nonresponse after 3 months of anti-VEGF treatment.
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Affiliation(s)
- Sohel Somani
- Department of Ophthalmology and Vision Sciences, University of Toronto and Uptown Eye Specialists, Brampton, Canada
| | | | - Bijal Shah-Manek
- Health Economics and Outcomes Research, Noesis Healthcare Technologies, Inc., Redwood City, CA, USA
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Petrovic N, Todorovic D, Sarenac Vulovic T, Sreckovic S, Zivic F, Risimic D. Combined Treatment of Persistent Diabetic Macular Edema with Aflibercept and Triamcinolone Acetonide in Pseudophakic Eyes. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59050982. [PMID: 37241214 DOI: 10.3390/medicina59050982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023]
Abstract
Background and Objectives: The main cause of the vision loss in diabetics is the development of diabetic macular edema, regardless of the stage of diabetic retinopathy. The paper aimed to examine whether the additional intravitreal application of triamcinolone acetonide to continuous anti-vascular endothelial growth factor therapy could improve therapeutic outcomes for pseudophakic eyes with persistent diabetic macular edema. Materials and Methods: twenty-four pseudophakic eyes with refractory diabetic macular edema, that had appeared despite three previously administered intravitreal injections of aflibercept, were divided into two groups (twelve eyes in each group). The first group continued to have aflibercept administered according to a fixed dosing regimen (once in two months). Triamcinolone acetonide 10 mg/0.1 mL (administered once per four months) was included for the second group, i.e., their treatment continued with a combination of aflibercept + triamcinolone acetonide. Results: The reduction in central macular thickness was higher in the eyes treated with combined therapy (aflibercept + triamcinolone acetonide) compared with the use of aflibercept alone during the entire 12-month follow-up period (3rd month p = 0.019; 6th month p = 0.023; 9th month p = 0.027; 12th month p = 0.031). As was evident from the p-values, the differences were statistically significant. No statistically significant difference was recorded for visual acuity: 3rd month p = 0.423; 6th month p = 0.392; 9th month p = 0.413; 12th month p = 0.418. Conclusions: Combined anti-vascular endothelial growth factor and steroid therapy leads to a better anatomical outcome of persistent diabetic macular edema in pseudophakic eyes, but does not lead to a more significant improvement in visual acuity than continuous anti-VEGF therapy alone.
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Affiliation(s)
- Nenad Petrovic
- Clinic of Ophthalmology, University Clinical Center Kragujevac, 34000 Kragujevac, Serbia
- Faculty of Medical Sciences, Department of Ophthalmology, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Dusan Todorovic
- Clinic of Ophthalmology, University Clinical Center Kragujevac, 34000 Kragujevac, Serbia
- Faculty of Medical Sciences, Department of Ophthalmology, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Tatjana Sarenac Vulovic
- Clinic of Ophthalmology, University Clinical Center Kragujevac, 34000 Kragujevac, Serbia
- Faculty of Medical Sciences, Department of Ophthalmology, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Suncica Sreckovic
- Clinic of Ophthalmology, University Clinical Center Kragujevac, 34000 Kragujevac, Serbia
- Faculty of Medical Sciences, Department of Ophthalmology, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Fatima Zivic
- Faculty of Engineering, University of Kragujevac, 34000 Kragujevac, Serbia
| | - Dijana Risimic
- Clinic for Eye Diseases, University Clinical Center of Serbia, 34000 Kragujevac, Serbia
- Medical Faculty, University of Belgrade, 11000 Beograd, Serbia
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Hunter A, Williams M. Long-term outcomes for patients treated for macular oedema secondary to retinal vein occlusion: a systematic review. BMJ Open Ophthalmol 2022; 7:bmjophth-2022-001010. [PMID: 36063388 PMCID: PMC9198693 DOI: 10.1136/bmjophth-2022-001010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/31/2022] [Indexed: 11/17/2022] Open
Abstract
This systematic review assessed the long-term outcomes for patients treated with intravitreal antivascular endothelial growth factor or dexamethasone for macular oedema (MO) secondary to retinal vein occlusion (RVO). Studies investigating patients of all ages with MO due to RVO only were included. The review was deliberately broad in scope, including comparative and non-comparative studies to ensure inclusion of real-world type evidence. Risk of bias was assessed. In total, 76 data sets were included (10 775 participants). Overall, mean best-corrected visual acuity (BCVA) improved from baseline to 5 years by 16.1 letters (p<0.01). BCVA improved from baseline in both central RVO (CRVO) and branch RVO (BRVOs) at 2 years, by 9.1 (p<0.01) (difference from baseline in CRVOs) and 9.1 (p<0.01) letters, respectively. At 5 years, BCVA improved from baseline in CRVOs by 15.6 letters and in BRVOs by 16.2; the difference between RVO types was not significant (p=0.18). Two studies had 5-year data for ranibizumab, and improvement was evident. There was no significant difference between outcomes in randomised controlled trials (RCTs) compared with non RCTs. These results suggest a benefit to receiving long-term intravitreal treatments for MO due to RVO.
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Affiliation(s)
- Alexandra Hunter
- Centre for Medical Education, Queen's University Belfast School of Medicine Dentistry and Biomedical Sciences, Belfast, UK
| | - Michael Williams
- Centre for Medical Education, Queen's University Belfast Faculty of Medicine Health and Life Sciences, Belfast, UK
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Kishore K, Bhat PV, Venkatesh P, Canizela CC. Dexamethasone Intravitreal Implant for the Treatment of Macular Edema and Uveitis: A Comprehensive Narrative Review. Clin Ophthalmol 2022; 16:1019-1045. [PMID: 35418744 PMCID: PMC8995179 DOI: 10.2147/opth.s209395] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/10/2022] [Indexed: 01/09/2023] Open
Abstract
Purpose The purpose of this review article is to provide a comprehensive review of the current applications of intravitreal DEX implant (Ozurdex®, Allergan Inc, Irvine, CA) for a variety of ophthalmic conditions – ranging from FDA approved indications to off-label uses. We have attempted to provide relevant evidence from the literature to help a reader develop an understanding of the biological and pharmacokinetic properties of DEX implant, its uses, and potential side effects. Methods PubMed searches were performed using the terms “Ozurdex”, or “intravitreal DEX implant”, AND “retinal vein occlusion”, or “diabetic macular edema”, or “uveitis”. The search was performed in July of 2021, with an additional search in October 2021. All original English language articles were considered for this review. Results DEX implant has evidence of efficacy in a variety of clinical situations including macular edema associated with retinal vein occlusion, diabetes, uveitis, and others. Safety concerns include cataract formation and progression, intraocular pressure elevation, complications related to intravitreal injection, and opportunistic infections secondary to steroid-induced immune suppression. Conclusion DEX implant is a useful tool in the management of several retinal disorders. Further studies are needed for head-to-head comparison with other treatment modalities and to determine its precise place in clinical practice.
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Affiliation(s)
- Kamal Kishore
- Illinois Retina and Eye Associates, Peoria, IL, USA
- Department of Surgery, University of Illinois College of Medicine, Peoria, IL, USA
- Correspondence: Kamal Kishore, Illinois Retina and Eye Associates, 4505 N Rockwood Drive, Suite 1, Peoria, IL, 61615, USA, Tel +1 3095891880, Fax +1 3095891885, Email
| | - Pooja V Bhat
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Pradeep Venkatesh
- Department of Ophthalmology, Dr. Rajendra Prasad Center for Ophthalmic Sciences, AIIMS, Ansari Nagar, New Delhi, 110029, India
| | - Cecilia C Canizela
- Department of Surgery, University of Illinois College of Medicine, Peoria, IL, USA
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Byrne EM, Llorián-Salvador M, Tang M, Margariti A, Chen M, Xu H. IL-17A Damages the Blood-Retinal Barrier through Activating the Janus Kinase 1 Pathway. Biomedicines 2021; 9:831. [PMID: 34356895 PMCID: PMC8301352 DOI: 10.3390/biomedicines9070831] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/06/2021] [Accepted: 07/14/2021] [Indexed: 12/16/2022] Open
Abstract
Blood-retinal barrier (BRB) dysfunction underlies macular oedema in many sight-threatening conditions, including diabetic macular oedema, neovascular age-related macular degeneration and uveoretinitis. Inflammation plays an important role in BRB dysfunction. This study aimed to understand the role of the inflammatory cytokine IL-17A in BRB dysfunction and the mechanism involved. Human retinal pigment epithelial (RPE) cell line ARPE19 and murine brain endothelial line bEnd.3 were cultured on transwell membranes to model the outer BRB and inner BRB, respectively. IL-17A treatment (3 days in bEnd.3 cells and 6 days in ARPE19 cells) disrupted the distribution of claudin-5 in bEnd.3 cells and ZO-1 in ARPE19 cells, reduced the transepithelial/transendothelial electrical resistance (TEER) and increased permeability to FITC-tracers in vitro. Intravitreal (20 ng/1 μL/eye) or intravenous (20 ng/g) injection of recombinant IL-17A induced retinal albumin leakage within 48 h in C57BL/6J mice. Mechanistically, IL-17A induced Janus kinase 1 (JAK1) phosphorylation in bEnd.3 but not ARPE19 cells. Blocking JAK1 with Tofacitinib prevented IL-17A-mediated claudin-5 dysmorphia in bEnd.3 cells and reduced albumin leakage in IL-17A-treated mice. Our results suggest that IL-17A can damage the BRB through the activating the JAK1 signaling pathway, and targeting this pathway may be a novel approach to treat inflammation-induced macular oedema.
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Affiliation(s)
| | | | | | | | | | - Heping Xu
- The Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast BT9 7BL, UK; (E.M.B.); (M.L.-S.); (M.T.); (A.M.); (M.C.)
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