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Risk factors associated with branch vs. central retinal vein occlusion
1Eye Research Institute of Retina Foundation, Boston, Massachusetts.
Insights
Central and branch retinal vein occlusion share risk factors, but hypertension and hyperopia are more common in branch retinal vein occlusion, while elevated intraocular pressure and erythrocyte sedimentation rate are more prevalent in central retinal vein occlusion.
Area of Science:
- Ophthalmology
- Retinal Vascular Diseases
Background:
- Retinal vein occlusion (RVO) is a common retinal vascular disease.
- Central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO) are distinct clinical entities.
- Understanding the differential risk factors for CRVO and BRVO is crucial for targeted prevention and management.
Purpose of the Study:
- To retrospectively analyze and compare the risk factors associated with central retinal vein occlusion (CRVO) and branch retinal vein occlusion (BRVO).
Main Methods:
- Retrospective review of medical records for 145 CRVO patients and 214 BRVO patients.
- Statistical comparison of demographic data and identified risk factors between the two groups.
Main Results:
- No significant differences in mean age or sex ratio were observed between CRVO and BRVO groups.
- Hypertension and hyperopia were significantly more prevalent in the BRVO group.
- Elevated intraocular pressure, elevated erythrocyte sedimentation rate (ESR), and a positive tuberculin skin test were significantly more prevalent in the CRVO group.
Conclusions:
- Systemic hypertension and hyperopia are identified as primary risk factors for BRVO.
- Factors contributing to elevated ESR are significant risk factors for CRVO.
- Distinct etiological profiles exist for CRVO and BRVO, necessitating tailored clinical approaches.
Abstract:
Records of 145 consecutive central and 214 branch retinal vein occlusion (CRVO and BRVO) patients were reviewed retrospectively to determine the differences in risk factors associated with these two diseases. Mean ages and sex ratios of both groups did not differ significantly. Hypertension and hyperopia were significantly more prevalent in BRVO than in CRVO, and elevated intraocular pressure, elevated erythrocyte sedimentation rate (ESR), and a positive tuberculin skin test were significantly more prevalent in CRVO. We conclude that the causes of the ESR elevation are more significant risk factors for CRVO, and systemic hypertension and hyperopia continue to be the main risk factors for BRVO.