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Journal Article
Randomized Controlled Trial
EFFICACY AND FREQUENCY OF INTRAVITREAL AFLIBERCEPT VERSUS BEVACIZUMAB FOR MACULAR EDEMA SECONDARY TO CENTRAL RETINAL VEIN OCCLUSION.
Retina 2018 September
PURPOSE: To compare the safety, efficacy, and frequency of intravitreal injection of aflibercept and bevacizumab for treatment of macular edema secondary to central retinal vein occlusion.
DESIGN: Prospective, comparative, randomized, interventional study.
PATIENTS AND METHODS: Eyes with macular edema secondary to central retinal vein occlusion were randomized between two groups according to the intravitreal injection used. Group A included eyes treated with intravitreal aflibercept, and Group B included eyes treated with intravitreal bevacizumab injections. The inclusion criteria were macular edema secondary to central retinal vein occlusion and follow-up duration of at least 12 months after the first injection. Exclusion criteria were macular ischemia, associated diabetes, hypertensive or renal retinopathy, other retinal disease, and previous anti-vascular endothelial growth factor injection. The main outcome measures are central foveal thickness, best-corrected visual acuity, time intervals between injections, improved retinal nonperfusion, and any reported complication.
RESULTS: Group A included 39 patients with a mean age of 57.4 ± 8.2 years. Group B included 40 eyes with a mean age of 56.5 ± 9.1 years. Twelve months after the first injection, central foveal thickness significantly improved from 475.45 ± 71.05 m to 259.11 ± 20.67 m in Group A and from 460.22 ± 89.38 m to 264.29 ± 32.05 m in Group B; best-corrected visual acuity significantly improved from 0.81 ± 0.16 logarithm of the minimum angle of resolution (20/125) to 0.34 ± 0.14 logarithm of the minimum angle of resolution (20/40) in Group A and from 0.73 ± 0.15 logarithm of the minimum angle of resolution (20/100) to 0.33 ± 0.17 logarithm of the minimum angle of resolution (20/40) in Group B; the mean number of injections was 3.72 ± 2.93 in Group A and was 5.44 ± 2.85 in Group B (P < 0.05); and the mean interval between injections was 54.23 ± 8.47 days in Group A and was 35.12 ± 7.76 days in Group B (P < 0.05). Retinal nonperfusion improved in 9/12 eyes in Group A and in 3/8 eyes in Group B (P < 0.05).
CONCLUSION: Both aflibercept and bevacizumab are comparably effective for treatment of macular edema secondary to central retinal vein occlusion without significant complications. However, the burden of frequent intravitreal injections could be significantly reduced when using aflibercept.
DESIGN: Prospective, comparative, randomized, interventional study.
PATIENTS AND METHODS: Eyes with macular edema secondary to central retinal vein occlusion were randomized between two groups according to the intravitreal injection used. Group A included eyes treated with intravitreal aflibercept, and Group B included eyes treated with intravitreal bevacizumab injections. The inclusion criteria were macular edema secondary to central retinal vein occlusion and follow-up duration of at least 12 months after the first injection. Exclusion criteria were macular ischemia, associated diabetes, hypertensive or renal retinopathy, other retinal disease, and previous anti-vascular endothelial growth factor injection. The main outcome measures are central foveal thickness, best-corrected visual acuity, time intervals between injections, improved retinal nonperfusion, and any reported complication.
RESULTS: Group A included 39 patients with a mean age of 57.4 ± 8.2 years. Group B included 40 eyes with a mean age of 56.5 ± 9.1 years. Twelve months after the first injection, central foveal thickness significantly improved from 475.45 ± 71.05 m to 259.11 ± 20.67 m in Group A and from 460.22 ± 89.38 m to 264.29 ± 32.05 m in Group B; best-corrected visual acuity significantly improved from 0.81 ± 0.16 logarithm of the minimum angle of resolution (20/125) to 0.34 ± 0.14 logarithm of the minimum angle of resolution (20/40) in Group A and from 0.73 ± 0.15 logarithm of the minimum angle of resolution (20/100) to 0.33 ± 0.17 logarithm of the minimum angle of resolution (20/40) in Group B; the mean number of injections was 3.72 ± 2.93 in Group A and was 5.44 ± 2.85 in Group B (P < 0.05); and the mean interval between injections was 54.23 ± 8.47 days in Group A and was 35.12 ± 7.76 days in Group B (P < 0.05). Retinal nonperfusion improved in 9/12 eyes in Group A and in 3/8 eyes in Group B (P < 0.05).
CONCLUSION: Both aflibercept and bevacizumab are comparably effective for treatment of macular edema secondary to central retinal vein occlusion without significant complications. However, the burden of frequent intravitreal injections could be significantly reduced when using aflibercept.
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