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A possible link between the pseudoexfoliation syndrome and coronary artery disease
M Citirik1, G Acaroglu, C Batman
1SB Ankara Eye Hospital, Turkey. mcitirik@hotmail.com
Insights
Coronary artery disease (CAD) is significantly more common in patients with pseudoexfoliation syndrome (PEX). Individuals with PEX show a higher prevalence of CAD, suggesting a need for eye examinations in CAD patients and cardiovascular screening in PEX patients.
Area of Science:
- Ophthalmology
- Cardiology
- Vascular Medicine
Background:
- Pseudoexfoliation syndrome (PEX) is an ocular condition with potential systemic associations.
- Coronary artery disease (CAD) is a leading cause of mortality worldwide.
- The relationship between PEX and systemic vascular diseases, particularly CAD, requires further investigation.
Purpose of the Study:
- To explore the association between coronary artery disease (CAD) and pseudoexfoliation syndrome (PEX).
- To compare the prevalence of PEX in patients with and without proven CAD.
- To investigate the presence of other vascular diseases and retinal vascular findings in relation to PEX and CAD.
Main Methods:
- A collaborative case-control study involving 50 patients with CAD and 50 controls.
- Coronary angiography was used to confirm CAD status.
- Statistical analysis included chi-squared and Student's t-tests to compare PEX prevalence, vascular diseases, and retinal findings.
Main Results:
- Pseudoexfoliation syndrome (PEX) was significantly more prevalent in patients with coronary artery disease (CAD) (28/50) compared to controls (12/50) (P=0.001).
- Patients with PEX exhibited a higher prevalence of CAD (P=0.001) and more prominent fundoscopic findings of vascular diseases (P=0.0001).
- No significant differences in age or sex were observed between PEX-positive and PEX-negative groups.
Conclusions:
- A statistically significant association exists between pseudoexfoliation syndrome (PEX) and coronary artery disease (CAD).
- The findings suggest a potential predisposition of PEX-positive individuals to CAD.
- Ophthalmological examination for PEX may warrant consideration for systemic vascular disease screening, and vice versa.
Purpose:
This is a collaborative case-control study from Ophthalmology and Cardiology departments of a tertiary care hospital, designed to explore the relationship between coronary artery disease (CAD) and pseudoexfoliation syndrome (PEX).
Method:
In all, 50 patients with CAD proven by coronary angiography, and 50 controls with normal coronary angiographic findings were compared in terms of PEX, other vascular diseases, and retinal vascular findings. chi2-test and Student's t-test were used for statistical analysis.
Results:
The number of patients with PEX among CAD (+) patients was substantially larger than controls. In all, 28 of 50 CAD (+) patients and only 12 of 50 CAD (-) patients had PEX. PEX was significantly associated with CAD (P=0.001). When all patients were regrouped according to the presence of PEX, patients with PEX did not differ from patients without PEX in terms of age (P=0.360) and sex (P=0.507), but the prevalence of CAD was higher (P=0.001) and fundoscopic findings of vascular diseases were significantly more prominent (P=0.0001) in PEX (+) patients.
Discussion:
We demonstrated statistically significant difference in the prevalence of PEX in CAD patients, and also in the prevalence of CAD in PEX (+) individuals. These were striking differences. We should consider the possibility of the presence of PEX in CAD patients; and the predisposition of PEX (+) persons for CAD, which necessitates a fundus examination for findings of systemic vascular diseases.
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