ArticleClinical ophthalmology (Auckland, N.Z.)2023
The Injection Practice Patterns of Retina Specialists in Managing Exudative Age-Related Macular Degeneration: A Retrospective Study.
Article in Clinical ophthalmology (Auckland, N.Z.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: To compare the PRN anti-VEGF injection patterns of four retina specialists with respect to the visual and anatomic outcomes in the management of wet age-related macular degeneration (AMD). Methods: Medical records of patients who received bevacizumab, ranibizumab, and aflibercept anti-VEGF injections (years 2010-2020) by four retina specialists were reviewed for frequency, injection intervals, best corrected visual acuity (BCVA), and central macular thickness, center involved (CMT) for statistical analysis. Outcomes measured were change in logMAR BCVA and CMT from the first to last injection visit. Results: Out of 137 AMD patients, 172 eyes were injected by four retina specialists in PRN fashion. Although all four specialists started the injection at similar baseline BCVA and CMT (p > 0.1), significant differences in mean injection number (9.0, p = 0.0001), injection intervals (5.06 weeks, p = 0.001), and total length of treatments (53.3 weeks, p = 0.0001) were observed. The mean change in logMAR BCVA between the first and last injection was -0.05, -0.22, 0.07, and 0.06 for the four specialists, respectively (p = 0.031), and the mean change in CMT was -53.3, -41.4, -72.7, and -21.9 µm (p = 0.41), respectively. Conclusion: Despite similar baseline criteria for injections by the retina specialists, different anti-VEGF injection regimens were practiced resulting in variations in BCVA and CMT outcomes. This suggests a need in establishing a universally adoptable injection regimen with possible integration of the confounding factors to reduce burden on both patients and retina specialists.
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