Optical coherence tomogrpaphy in differential diagnosis of retinal arteriolar macroaneurysms

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Aim. To study the prevalence and topographical distribution of retinal exudation in eyes with retinal arteriolar macroaneurysms (RAM) and in those with macular branch retinal vein occlusions (mBRVO).

Methods. The prevalence of optical coherence tomography (OCT) signs (different types of retinal hemorrhages and accumulation of fluid as well as hard and soft exudates) was evaluated in 28 eyes with RAM (22 males, 6 females, mean age 66.0 ± 9.9 years) versus 17 eyes with mBRVO (9 males, 7 females, mean age 56.9 ± 10.5 years). Topographical distribution of retinal exudation on OCT retinal maps was evaluated in 7 RAM eyes (6 males, 1 female, mean age 66.0 ± 11.7 years) and 8 mBRVO eyes (5 males, 3 females, mean age 60.1 ± 19.2 years). The measures were 1) position of the point of the maximum retinal thickness in relation to the macular center and RAM, 2) difference between maximum retinal thickness in the macular center and that at the site of RAM localization (surrogate control point in mBRVO eyes).

Results. Soft exudates and intraretinal fluid accumulation were mostly associated with mBRVO (p = 0.007 and p < 0.001, respectively), while hard exudates were found almost exclusively in RAM eyes (p < 0.001). Central retinal thickness in RAM eyes was lower than that of mBRVO eyes, 453.1 ± 148.6 μm and 797.5 ± 179.6 μm, respectively (p = 0.001). The point of maximum retinal thickness was found at the site of RAM localization in 8 out of 9 RAM cases (88.9%), and within the central subfield in 8 out of 8 mBRVO cases (100%). The difference between maximum retinal thickness in the macular center and at the site of RAM localization (surrogate control point in mBRVO eyes) was –77.9 ± 174.1 μm and 148.3 ± 100.4 μm for RAM and mBRVO eyes, respectively (p < 0.001).

Conclusions. Evaluation of exudative signs and their topographic distribution based on OCT data may be used for differential diagnosis and laser treatment planning in RAM.

作者简介

Alexey Kulikov

Military medical academy of S.M. Kirov

Email: alexey.kulikov@mail.ru

MD, PhD, DMedSc, Professor, Head of the Department

俄罗斯联邦, Saint-Petersburg

Dmitrii Maltsev

Military medical academy of S.M. Kirov

编辑信件的主要联系方式.
Email: glaz.med@yandex.ru
ORCID iD: 0000-0001-6598-3982

MD, PhD, ophthalmologist of the Ophthalmology Department

Saint-Petersburg

Maria Burnasheva

Military medical academy of S.M. Kirov

Email: maria.andreevna1@gmail.com

Ophthalmologist

俄罗斯联邦, Saint-Petersburg

Alina Kazak

Military medical academy of S.M. Kirov

Email: ali-kazak@mail.ru

Student

俄罗斯联邦, Saint-Petersburg

参考

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版权所有 © Kulikov A.N., Maltsev D.S., Burnasheva M.A., Kazak A.A., 2019

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