The British journal of ophthalmology · 2021
Dilated choroidal veins and their role in recurrences of myopic macular neovascularisations.
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Xie Shiqi, Du Ran, Fang Yuxin, Onishi Yuka, Igarashi Tae, Takahashi Hiroyuki, Kamoi Koju, Ohno-Matsui Kyoko
Аннотация
AIM: To determine whether there is a correlation between the presence of macular dilated choroidal vein (DCV) and the recurrence of myopic macular neovascularisation (MNV) after antivascular endothelial growth factor (VEGF) treatment.
METHODS: Medical records of 168 eyes of 163 patients with myopic MNV were reviewed for the presence of macular DCV and episodes of recurrences. A macular DCV was defined as a choroidal vein whose diameter was 2× larger than the adjacent veins coursing in the macular area of 5.5 mm diameter.
RESULTS: Macular DCV existed in 47 (28%) of the eyes with myopic MNV. 70 eyes (41.7%) had recurrence during a mean follow-up period of 52.5±23.0 months. Recurrence was found in 28 of the 47 eyes (59.6%) with DCV, which was significantly more frequent than the 42 of the 121 eyes (34.7%) without DCV (p=0.003). Cox model analysis showed that macular DCV was an independent risk factor (HR: 2.0, 95% CI 1.1 to 3.5) for recurrence. The recurrence rate was significantly higher in eyes with DCV within the first 2 years after the onset than in eyes without DCV.
CONCLUSIONS: Macular DCVs may be indicators of a more aggressive phenotype of eyes with myopic MNV. These eyes need careful monitoring after anti-VEGF therapies.
METHODS: Medical records of 168 eyes of 163 patients with myopic MNV were reviewed for the presence of macular DCV and episodes of recurrences. A macular DCV was defined as a choroidal vein whose diameter was 2× larger than the adjacent veins coursing in the macular area of 5.5 mm diameter.
RESULTS: Macular DCV existed in 47 (28%) of the eyes with myopic MNV. 70 eyes (41.7%) had recurrence during a mean follow-up period of 52.5±23.0 months. Recurrence was found in 28 of the 47 eyes (59.6%) with DCV, which was significantly more frequent than the 42 of the 121 eyes (34.7%) without DCV (p=0.003). Cox model analysis showed that macular DCV was an independent risk factor (HR: 2.0, 95% CI 1.1 to 3.5) for recurrence. The recurrence rate was significantly higher in eyes with DCV within the first 2 years after the onset than in eyes without DCV.
CONCLUSIONS: Macular DCVs may be indicators of a more aggressive phenotype of eyes with myopic MNV. These eyes need careful monitoring after anti-VEGF therapies.