Dynamics of ultrasound indicators of retrobulbar blood flow at different durations of type 1 diabetes mellitus in childhood and adolescence

The results of a study of the dynamics of ultrasound parameters of blood flow in the eye and orbit in patients with type 1 diabetes mellitus in childhood and adolescence are presented. The study included data from 70 patients aged 5 to 18 years, with disease duration up to 5 years, from 5 to 10 years, and more than 10 years. Ultrasound indicators of linear blood flow velocity and peripheral resistance index were analyzed in the ophthalmic arteries, central arteries and veins of the retina, posterior short ciliary arteries, and superior ophthalmic veins at different periods of the duration of type 1 diabetes mellitus. The study revealed a decrease in blood flow velocity in the central retinal arteries and in the posterior short ciliary arteries with increasing duration of type 1 diabetes. The greatest decrease in blood flow velocity was recorded in the group with a duration of diabetes mellitus of more than 10 years. The data obtained can be used to assess and dynamically monitor early disorders of the blood supply to the eye and orbit in patients with type 1 diabetes mellitus in childhood and adolescence.

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