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Aflibercept in Diabetic Macular Oedema Previously Refractory to Standard Intravitreal Therapy: An Irish Retrospective Study.
Ophthalmology and Therapy 2018 June
INTRODUCTION: To determine visual and anatomical outcomes of diabetic macular oedema (DMO) patients in a tertiary centre following conversion to aflibercept having been refractory to previous treatment with bevacizumab/ranibizumab.
METHODS: A retrospective case series of patients with a diagnosis of DMO undergoing aflibercept intravitreal therapy for at least 6 months who had previous treatment with three consecutive bevacizumab/ranibizumab injections pre-switch. Exclusion criteria included other procedures affecting visual outcome performed within the treatment period. Outcomes measured included visual acuity (VA), central macular thickness (CMT) and injection frequency.
RESULTS: Eighteen eyes of 13 patients were included. Mean VA pre-switch was 61.5 ± 13.8 letters and CMT was 433.2 ± 101.4. Mean number of prior bevacizumab/ranibizumab treatments was 11.3 ± 7.2. Mean follow-up post-switch was 22.5 months (SD 7.9). Mean VA improved from baseline by 4.8 letters at 6 months (p = 0.005), by 6.1 letters at 12 months (p = 0.006), by 7.9 letters (p = 0.004) at 18 months and by 6.4 letters (p = 0.1) at 24 months. Mean CMT decreased from baseline by 108.6 μm at 6 months (p = 0.01), 117.7 μm at 12 months (p = 0.0003), 158.0 μm at 18 months (p = 0.005) and by 123.3 μm at 24 months (p = 0.02).
CONCLUSION: Switching to aflibercept in treatment-resistant DMO produces significant improvements in visual and anatomical outcomes, with eventual maintenance of VA levels.
METHODS: A retrospective case series of patients with a diagnosis of DMO undergoing aflibercept intravitreal therapy for at least 6 months who had previous treatment with three consecutive bevacizumab/ranibizumab injections pre-switch. Exclusion criteria included other procedures affecting visual outcome performed within the treatment period. Outcomes measured included visual acuity (VA), central macular thickness (CMT) and injection frequency.
RESULTS: Eighteen eyes of 13 patients were included. Mean VA pre-switch was 61.5 ± 13.8 letters and CMT was 433.2 ± 101.4. Mean number of prior bevacizumab/ranibizumab treatments was 11.3 ± 7.2. Mean follow-up post-switch was 22.5 months (SD 7.9). Mean VA improved from baseline by 4.8 letters at 6 months (p = 0.005), by 6.1 letters at 12 months (p = 0.006), by 7.9 letters (p = 0.004) at 18 months and by 6.4 letters (p = 0.1) at 24 months. Mean CMT decreased from baseline by 108.6 μm at 6 months (p = 0.01), 117.7 μm at 12 months (p = 0.0003), 158.0 μm at 18 months (p = 0.005) and by 123.3 μm at 24 months (p = 0.02).
CONCLUSION: Switching to aflibercept in treatment-resistant DMO produces significant improvements in visual and anatomical outcomes, with eventual maintenance of VA levels.
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