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Widefield OCT-Angiography and Fluorescein Angiography Assessments of Nonperfusion in Diabetic Retinopathy and Edema Treated with Anti–Vascular Endothelial Growth Factor

医学 糖尿病性视网膜病变 荧光血管造影 眼科 视网膜 眼底(子宫) 水肿 新生血管 视网膜病变 血管造影 血管内皮生长因子 糖尿病 外科 内科学 血管内皮生长因子受体 血管生成 内分泌学
作者
Aude Couturier,Pierre-Antoine Rey,Ali Erginay,Carlo Lavia,Sophie Bonnin,B. Dupas,Alain Gaudric,Ramin Tadayoni
出处
期刊:Ophthalmology [Elsevier BV]
卷期号:126 (12): 1685-1694 被引量:176
标识
DOI:10.1016/j.ophtha.2019.06.022
摘要

To assess change in retinal nonperfusion (NP) after anti-vascular endothelial growth factor (VEGF) therapy for diabetic macular edema (DME) using 2 different imaging modalities: swept-source widefield (SS-WF) OCT angiography (OCTA) and ultra-widefield (UWF) fluorescein angiography (FA).Observational case series.Ten eyes of 9 patients with severe nonproliferative diabetic retinopathy (NPDR) or proliferative DR (PDR) initiating 3 monthly anti-VEGF intravitreal injections for DME.All eyes were imaged with UWF color fundus photographs (CFPs), UWF FA, and SS-WF OCTA at baseline (M0) and 1 month after the third anti-VEGF injection (M3). All images were aligned and divided into 16 boxes for analysis of NP areas by 2 blinded retina specialists.The number of discrepancies between SS-WF OCTA and UWF FA regarding the detection of NP areas and small vessels passing through NP areas; assessment of DR severity on UWF CFP; and change in each NP area between M0 and M3: number of boxes/eye with presence of at least 1 NP area, number of arterioles or venules that disappeared or reappeared, and number of NP areas in which capillaries disappeared or reappeared.The diabetic retinopathy (DR) severity score improved by at least 1 stage in 8 of 10 eyes, with a significant decrease in the mean number of microaneurysms and retinal hemorrhages on UWF CFP at M3 versus M0 (n = 40±28 vs. 121±57; P = 0.0020) and regression of fundus neovascularization when present. All NP areas detected on FA were seen on SS-WF OCTA, but additional NP areas were detected on SS-WF OCTA at M0 in 29% (46/160) of boxes. No reperfusion of arterioles or venules was observed at M3 on FA or SS-WF OCTA. Retinal capillaries were only visible on OCTA, and no reperfusion in NP areas was observed even when a reduction in dark areas was visible on FA.No reperfusion of vessels or capillary network was detected in NP areas using 2 imaging techniques, UWF FA and SS-WF OCTA, in eyes with DR after 3 anti-VEGF injections. The detection rate of NP areas was higher with SS-WF OCTA than with UWF FA.
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