Han Joo Cho1, Seul Gi Yoo2, Hyoung Seok Kim2, Jae Hui Kim2, Chul Gu Kim2, Tae Gon Lee2, Jong Woo Kim2. 1. Department of Ophthalmology, Kim's Eye Hospital, Myung-Gok Eye Research Institute, Konyang University College of Medicine, Seoul, South Korea. Electronic address: chojoo@kimeye.com. 2. Department of Ophthalmology, Kim's Eye Hospital, Myung-Gok Eye Research Institute, Konyang University College of Medicine, Seoul, South Korea.
Abstract
PURPOSE: To describe the risk factors for the development of geographic atrophy (GA) following intravitreal ranibizumab injection treatment for retinal angiomatous proliferation (RAP). DESIGN: Retrospective interventional series. METHODS: Forty-three eyes (38 South Korean patients) from patients being treated for naïve RAP with intravitreal ranibizumab injection were included in this study. All patients were treated with an initial series of 3 monthly loading injections, followed by further injections as required. Baseline ocular characteristics and lesion features assessed using fluorescein angiography (FA), indocyanine angiography (ICGA), and spectral-domain optical coherence tomography (SD OCT) were evaluated as potential risk factors for GA through 2 years of follow-up. RESULTS: At 2 years follow-up, GA had developed in 16 of 43 eyes (37.2%). The mean number of ranibizumab injections was 7.52 ± 2.11. Using multiple logistic regression, thinning of the subfoveal choroid at baseline (odds ratio [OR], 0.955; 95% confidence interval [CI], 0.929-0.982; P = .002), presence of reticular pseudodrusen (OR, 1.092; 95% CI, 1.017-1.485; P = .039), and presence of GA in the fellow eye at baseline (OR, 1.433; 95% CI, 1.061-1.935; P = .025) were identified as significant risk factors for GA development. CONCLUSIONS: GA developed in 37.2% of eyes with RAP during the 24 months following intravitreal ranibizumab injections. Subfoveal choroidal thinning at baseline, the presence of reticular pseudodrusen, and the presence of GA in the fellow eye at baseline were associated with increased risk of GA development after treatment.
PURPOSE: To describe the risk factors for the development of geographic atrophy (GA) following intravitreal ranibizumab injection treatment for retinal angiomatous proliferation (RAP). DESIGN: Retrospective interventional series. METHODS: Forty-three eyes (38 South Korean patients) from patients being treated for naïve RAP with intravitreal ranibizumab injection were included in this study. All patients were treated with an initial series of 3 monthly loading injections, followed by further injections as required. Baseline ocular characteristics and lesion features assessed using fluorescein angiography (FA), indocyanine angiography (ICGA), and spectral-domain optical coherence tomography (SD OCT) were evaluated as potential risk factors for GA through 2 years of follow-up. RESULTS: At 2 years follow-up, GA had developed in 16 of 43 eyes (37.2%). The mean number of ranibizumab injections was 7.52 ± 2.11. Using multiple logistic regression, thinning of the subfoveal choroid at baseline (odds ratio [OR], 0.955; 95% confidence interval [CI], 0.929-0.982; P = .002), presence of reticular pseudodrusen (OR, 1.092; 95% CI, 1.017-1.485; P = .039), and presence of GA in the fellow eye at baseline (OR, 1.433; 95% CI, 1.061-1.935; P = .025) were identified as significant risk factors for GA development. CONCLUSIONS: GA developed in 37.2% of eyes with RAP during the 24 months following intravitreal ranibizumab injections. Subfoveal choroidal thinning at baseline, the presence of reticular pseudodrusen, and the presence of GA in the fellow eye at baseline were associated with increased risk of GA development after treatment.
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