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Updated: Jul 11, 2026

Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability
Published on: August 6, 2021
Central retinal vein occlusion case-control study
Hideki Koizumi1, Daniela C Ferrara, Claudia Bruè
1Vitreous-Retina-Macula Consultants of New York, New York, NY 10022, USA.
Insights
This study identified glaucoma, aspirin use, and warfarin use as key independent risk factors for central retinal vein occlusion (CRVO). These findings suggest CRVO pathogenesis may be complex, potentially involving factors beyond simple thrombus formation.
Area of Science:
- Ophthalmology
- Vascular Medicine
- Retinal Diseases
Background:
- Central retinal vein occlusion (CRVO) is a significant cause of vision loss.
- Understanding its risk factors is crucial for prevention and management.
Purpose of the Study:
- To investigate and identify risk factors associated with central retinal vein occlusion (CRVO).
Main Methods:
- Retrospective case-control study design.
- Comparison of consecutive CRVO patients with a matched control group.
- Evaluation of potential risk factors through univariate and multivariate analyses.
Main Results:
- CRVO was associated with hypertension, diabetes mellitus, glaucoma, and atrial fibrillation.
- Independent predictors identified were glaucoma (OR, 4.75), aspirin use (OR, 2.66), and warfarin use (OR, 3.34).
- Postmenopausal estrogen use was less common in CRVO patients.
Conclusions:
- Glaucoma, aspirin, and warfarin use are confirmed independent risk factors for CRVO.
- Findings suggest CRVO pathogenesis may be more complex than primary thrombus formation.
- Current antithrombotic therapies may not fully address vasculopathic and prothrombotic risks in all CRVO cases.
Purpose:
To investigate risk factors for central retinal vein occlusion (CRVO).
Design:
Retrospective case-control study.
Methods:
Consecutive patients with CRVO examined from July 1, 2005 through July 31, 2006 were compared with an historical gender- and age-matched control group of patients with ocular problems other than vascular occlusive disease from the same referral practice. Risk factors for CRVO were evaluated.
Results:
The 144 patients in the CRVO group, 87 males and 57 females, had a mean age of 69.6 years (+/-13.6 years). CRVO was associated with hypertension (P < .001), diabetes mellitus (P = .047), glaucoma (P < .001), atrial fibrillation (P = .036), angiotensin-converting enzyme inhibitor use (P = .022), aspirin use (P < .001), and warfarin use (P = .011) by univariate analyses. Postmenopausal estrogen use was more common among women in the control group (P = .029). Multivariate logistic regression found the independent predictors for CRVO to be: glaucoma (adjusted odds ratio [OR], 4.75; P < .001), aspirin use (adjusted OR, 2.66; P = .001), and warfarin use (adjusted OR, 3.34; P = .005).
Conclusions:
We found many of the same risk factors previously identified for CRVO by other studies, but we identified both aspirin and warfarin use to be independent risk factors for CRVO. Although these findings suggest the vasculopathic and prothrombotic risks in some patients may not be addressed adequately by antithrombotic therapy, they also suggest that the pathogenesis of CRVO may be more complicated than just the development of a primary thrombus within the vein.
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