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Intravitreal Injection of Anti-Vascular Endothelial Growth Factors Combined with Corticosteroids for the Treatment of Macular Edema Secondary to Retinal Vein Occlusion: A Systematic Review and Meta-Analysis.
Seminars in Ophthalmology 2023 August 25
PURPOSE: To evaluate the efficacy and safety of intravitreal anti-vascular endothelial growth factor (anti-VEGF) and corticosteroid combination therapy for the management of treatment-naïve or recurrent/refractory macular edema caused by retinal vein occlusion (RVO) in comparison with anti-VEGF monotherapy.
METHODS: In this systematic review and meta-analysis study, the data from publications in the electronic databases including PubMed, Embase, Cochrane Library Central Register of Controlled Trials, ISI and Scopus from January 1, 2007, through November 20, 2020, were compiled. Heterogeneity was statistically quantified by the I2 statistic, and meta-analysis was performed using a random-effects model.
RESULTS: Twenty-four related studies were identified, including a total of 1280 eyes, which consisted of 685 and 507 patients with central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO), respectively. This study demonstrated a greater improvement in best-corrected visual acuity (BCVA) in the combination group compared to anti-VEGF monotherapy for both CRVO and BRVO cases at 6 months after initiating therapy. The improvement in vision was more notable in BRVO cases than in CRVO cases. However, the changes in central macular thickness (CMT) did not differ significantly between the different treatment approaches, and the results were inconclusive. Including all cases with RVO, there was no inferiority in terms of BCVA improvement and CMT reduction in the triamcinolone subgroup compared with the slow-release dexamethasone implant subgroup. A greater improvement was noticed in terms of BCVA in the sequentially treated subgroup compared to the simultaneous treatment subgroup, while there was a greater reduction in CMT in the simultaneous subgroup with the highest reduction recorded at 1 month after treatment.
CONCLUSIONS: This study suggests that combination therapy with intravitreal anti-VEGF and corticosteroid (such as intravitreal or subtenon triamcinolone or dexamethasone implant) has a slightly better effect on improving BCVA in cases with BRVO or CRVO at 6 months compared to monotherapy.
METHODS: In this systematic review and meta-analysis study, the data from publications in the electronic databases including PubMed, Embase, Cochrane Library Central Register of Controlled Trials, ISI and Scopus from January 1, 2007, through November 20, 2020, were compiled. Heterogeneity was statistically quantified by the I2 statistic, and meta-analysis was performed using a random-effects model.
RESULTS: Twenty-four related studies were identified, including a total of 1280 eyes, which consisted of 685 and 507 patients with central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO), respectively. This study demonstrated a greater improvement in best-corrected visual acuity (BCVA) in the combination group compared to anti-VEGF monotherapy for both CRVO and BRVO cases at 6 months after initiating therapy. The improvement in vision was more notable in BRVO cases than in CRVO cases. However, the changes in central macular thickness (CMT) did not differ significantly between the different treatment approaches, and the results were inconclusive. Including all cases with RVO, there was no inferiority in terms of BCVA improvement and CMT reduction in the triamcinolone subgroup compared with the slow-release dexamethasone implant subgroup. A greater improvement was noticed in terms of BCVA in the sequentially treated subgroup compared to the simultaneous treatment subgroup, while there was a greater reduction in CMT in the simultaneous subgroup with the highest reduction recorded at 1 month after treatment.
CONCLUSIONS: This study suggests that combination therapy with intravitreal anti-VEGF and corticosteroid (such as intravitreal or subtenon triamcinolone or dexamethasone implant) has a slightly better effect on improving BCVA in cases with BRVO or CRVO at 6 months compared to monotherapy.
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