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  • Title: Predictive factors for exudation of quiescent choroidal neovessels detected by OCT angiography in the fellow eyes of eyes treated for a neovascular age-related macular degeneration.
    Author: Solecki L, Loganadane P, Gauthier AS, Simonin M, Puyraveau M, Delbosc B, Saleh M.
    Journal: Eye (Lond); 2021 Feb; 35(2):644-650. PubMed ID: 32398845.
    Abstract:
    BACKGROUND: To identify predictive factors for exudation for quiescent choroidal neovessels (qCNV) in the fellow eyes of eyes treated for a neovascular age-related macular degeneration (AMD). METHODS: Prospective observational study. One hundred and forty-four contralateral eyes of 144 patients treated for wet AMD were analysed. At a baseline visit, multimodal imaging including dye angiographies and optical coherence tomography angiography (OCT-A) was performed in order to detect qCNV. Patients were followed up for 12 months with a monthly assessment. The manifestation of any type of exudation (either intra- or subretinal fluid or hyperreflective subretinal material) was monitored. RESULTS: The prevalence of qCNV in the treatment-naive eyes was 15.9% with an incidence over a 12-month period of 2.8%. In total, 40.7% of the overall neovessels remained stable with no sign of exudation, while 59.3% presented some fluid during the follow-up. A statistically significant relationship was established for the following variables preceding the exudation: increase in central macular thickness (OR = 116; 95% CI [4.74; 50530] p = 0.038), increase in pigment epithelial detachment height (OR = 1.76; 95% CI [1.17; 3.18] p = 0.021) and width (OR = 1.53; 95% CI [1.12; 2.62] p = 0.042), increase in neovessels' surface on OCT-A (OR = 6.32; 95% CI [1.62; 51.0] p = 0.033), emergence of a branching pattern (OR = 7.50; 95% CI[1.37; 61.5] p = 0.032) and appearance of a hypointense halo surrounding the lesion (OR = 10.00; 95% CI [1.41; 206] p = 0.048). CONCLUSIONS: The risk of exudation in the treatment-naive fellow eyes of eyes treated for neovascular AMD was notably increased in the presence of qCNV. The biomarkers identified will help to detect their activation in order to ensure prompt antiangiogenic therapy.
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