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REVIEW ARTICLE
Year : 2019  |  Volume : 67  |  Issue : 11  |  Page : 1800-1809

Comparison between Ozurdex and intravitreal anti-vascular endothelial growth factor treatment for retinal vein occlusion–related macular edema: A systematic review and meta-analysis of randomized controlled trials


1 Department of Ophthalmology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
2 Graduate School, Guangxi University of Chinese Medicine, Guangxi, China

Correspondence Address:
Dr. Jianfeng He
Department of Ophthalmology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_382_19

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This systematic review aimed to evaluate the effectiveness and safety of intravitreal dexamethasone (DEX) implant and intravitreal anti-vascular endothelial growth factor (VEGF) treatments for macular edema (ME) secondary to retinal vein occlusion (RVO), central retinal vein occlusion (CRVO), and branch retinal vein occlusion (BRVO). The electronic databases comprehensively searched for the studies that compared DEX with anti-VEGF treatments in patients suffering from RVO-related ME. The effectiveness was estimated using best-corrected visual acuity (BCVA), central retinal thickness (CRT), and intraocular pressure (IOP). All data were analyzed by Review Manager (RevMan) 5.3. According to the meta-analysis from five randomized control trials, both DEX implant and anti-VEGF agent treatments were effective, but no significant differences in BCVA and CRT were observed between these two treatments. Novartis' two studies indicated that anti-VEGF agents significantly reduced the CRT compared with DEX implant at 6 months [weighted mean difference: 158.53 μm, 95% confidence interval (CI): (71.09, 245.96), P= 0.0004]. Furthermore, anti-VEGF agents showed some advantages on cataract formation [risk ratio (RR): 3.43, 95% CI: (1.35, 8.71), P= 0.009] and other adverse events [RR: 1.19, 95% CI: (1.09, 1.31), P= 0.0002] without heterogeneity (P = 0.20, I2 = 35%). Anti-VEGF agents were also effective treatments for cataract formation or less adverse events for RVO-related ME. In contrast, DEX implant had higher risk for IOP elevation and lower cataract incidence than anti-VEGF agents. Hence, complementary and alternative treatments are expected.


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