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Obstructive Sleep Apnea and Diabetic Macular Edema Inflammatory Mediators

NCT04648618 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2020-12-01

No results posted yet for this study

Summary

Obstructive sleep apnea (OSA) is characterized by intermittent nocturnal hypoxemia, frequent arousals, fragmented sleep and daytime sleepiness. It has been shown to increase the risk of cardiac and vascular disease through multiple mechanisms including sympathetic hyperactivity, metabolic dysregulation, and activation of oxidative stress and inflammatory pathways.

Diabetic retinopathy is a leading cause of blindness in the working age group, affecting 93 million people worldwide. Diabetic macular edema (DME) is a sight threatening complication and the most common cause of visual loss in patients with diabetes. OSA is frequently associated with diabetes with prevalence ranging from 23 to 86%. However, the relationship between OSA and DME is not well defined. The retina is especially susceptible to hypoxia, being one of the most metabolically active tissues. Many of the same inflammatory mediators have also been found to be elevated in patients with diabetic macular edema, including VEGF, VCAM-1 and IL-6.

There has been no previous study examining the biochemical impact of OSA on patients with DME. We aim to explore this relationship by examining the differences in inflammatory markers expressed in patients with DME who have undergone an overnight sleep study, which is considered the gold standard diagnostic tool in OSA.

Conditions

Sponsors & Collaborators

  • Uptown Eye Specialists

    lead OTHER

Eligibility

Min Age
18 Years
Sex
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-01-01
Primary Completion
2020-03-31
Completion
2020-12-31

Countries

  • Canada

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04648618 on ClinicalTrials.gov