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Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography
Published on: March 26, 2020
Association of Retinal Artery Occlusion with Subclinical Coronary Artery Disease
Yong Dae Kim1,2, Yong Kyu Kim2, Yeonyee E Yoon3
1Department of Ophthalmology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
Insights
Retinal artery occlusion (RAO) is linked to a higher prevalence of hidden coronary artery disease (CAD). Patients with RAO show more extensive plaque buildup, indicating increased cardiovascular risk.
Area of Science:
- Ophthalmology
- Cardiology
- Vascular Medicine
Background:
- Retinal artery occlusion (RAO) is a serious condition affecting vision.
- The relationship between RAO and subclinical coronary artery disease (CAD) requires further investigation.
Purpose of the Study:
- To evaluate the association between RAO and subclinical CAD.
- To compare the extent of coronary atherosclerosis in RAO patients versus controls.
Main Methods:
- A cohort of 41 non-arteritic RAO patients without prior CAD symptoms was studied.
- Coronary computed tomographic angiography (CCTA) was used to assess CAD in RAO patients and age/gender-matched controls.
- Logistic regression analysis identified risk factors associated with CAD.
Main Results:
- RAO patients exhibited significantly higher coronary artery calcium scores compared to controls.
- The prevalence of obstructive CAD (≥50% stenosis) was significantly higher in RAO patients (29% vs. 15%).
- RAO was independently associated with obstructive CAD (OR, 3.0) and extensive CAD (SIS > 4: OR, 2.8; SSS > 8: OR, 3.4).
Conclusions:
- RAO patients present with a greater prevalence of subclinical obstructive CAD.
- These patients have a more extensive burden of coronary artery plaques than controls.
- Physicians should consider the heightened risk of CAD in individuals with RAO.
Background:
To evaluate the association between retinal artery occlusion (RAO) and subclinical coronary artery disease (CAD).
Methods:
We studied 41 patients with non-arteritic RAO without any history or symptoms of CAD, who had undergone coronary computed tomographic angiography (CCTA) for systemic atherosclerotic evaluation between 2007 and 2012. The age- and gender-matched control group comprised 4-fold subjects who were randomly selected from asymptomatic subjects who underwent CCTA during general health evaluation. Medical records and CCTA findings were compared between RAO patients and control groups. Multiple logistic regression analysis was carried out to assess the risk factors associated with CAD.
Results:
Cardiovascular risk factors were not significantly different between RAO patients and control groups. RAO patients showed higher coronary artery calcium score than did control subjects (267.9 ± 674.9 vs. 120.2 ± 289.5). On CCTA, the prevalence of obstructive CAD (diameter stenosis ≥ 50%) in RAO patients was significantly higher than that in controls (29% vs. 15%; odds ratio [OR], 3.0). RAO patients demonstrated a significantly higher segment-involvement score (SIS) (2.6 ± 3.0 vs. 1.6 ± 2.4) and segment-stenosis score (SSS) (3.6 ± 4.8 vs. 2.0 ± 3.3) than did controls. After adjustment of associated factors, RAO showed significant association (OR, 3.0) with obstructive CAD and extensive CAD (SIS > 4: OR, 2.8; SSS > 8: OR, 3.4).
Conclusion:
Patients with RAO had a higher prevalence of subclinical obstructive CAD with a more extensive and heavier burden of coronary artery plaques than did age- and gender-matched controls. Physicians should understand the potential risk of CAD in RAO patients.
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