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Perifoveal Vascular Network A...

Perifoveal Vascular Network Assessed by OCT-Angiography in Type I Diabetes Mellitus

Last Updated: 2020-07-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

Total Enrollment

600 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-05-08

Study Completion Date

2021-05-31

Brief Summary

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This study is directed to evaluate the role of Optical Coherence Tomography Angiography (OCT-A) in the evaluation of the perifoveal vascular network in type 1 diabetic patients, and to investigate the relationship between OCT-A-derived parameters and demographic and clinical factors, as metabolic control and duration of the disease.

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Detailed Description

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Diabetic retinopathy (DR) is the leading cause of blindness in type 1 Diabetes Mellitus (DM) patients, as a consequence of impaired blood flow in the retina. Optical coherence tomography angiography (OCT-A) is a newly developed, non-invasive, retinal imaging technique that allows detection of perfused and non perfused areas of the retina without the injection of dye. This OCT-based method permits adequate delineation of the perifoveal vascular network, and allows objective identification of microvascular changes, such as capillary dilation or presence of microaneurisms. It is also capable to detect paramacular areas of capillary non perfusion and/or enlargement of the foveal avascular zone (FAZ), representing an excellent tool for assessment of diabetic retinopathy.

Given that all these features are commonly seen in diabetic patients, the relationship of these microvascular changes with systemic factors such as metabolic control or duration of the disease still need to be elucidated. Interestingly, further studies are required to investigate whether these changes reflect those occurring elsewhere in the body affected by diabetic microvascular disease, as the kidneys or the brain. If these relationships were demonstrated, early detection of these microvascular changes could lead to modifications in the pharmacological management of diabetic patients, as a way to reduce the risk of future complications in both the eye and other organs. The aim of this study is to evaluate the role of OCT-A in the evaluation of the perifoveal vascular network in type 1 diabetic patients, and to investigate the relationship between these OCT-A-derived parameters and demographic and clinical factors, as metabolic control and duration of the disease.

Conditions

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Retinal Vascular Retinal Disease Retinal Ischemia Retinal Ischaemia Due to Type 1 Diabetes Mellitus Diabetes Mellitus Diabetic Retinopathy Diabetes Mellitus, Type 1 Vessels; Retina, Tortuous

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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