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Published on: October 22, 2014
Can retinal changes predict coronary artery disease in elderly hypertensive patients presenting with angina?
Ghanshyam Palamaner Subash Shantha1, Yadav Srinivasan, Anita A Kumar
1General Medicine Department, Sri Ramachandra University, Chennai, Tamilnadu 600087, India. drpssghanshyam@yahoo.co.in
Insights
Retinal changes in elderly hypertensive patients with angina can help predict coronary artery disease (CAD). This screening tool shows moderate accuracy, especially in resource-limited settings.
Area of Science:
- Ophthalmology
- Cardiology
- Geriatrics
Background:
- Increasing prevalence of coronary artery disease (CAD) and hypertension in India's elderly population.
- Need for cost-effective diagnostic tools in resource-poor settings.
Purpose of the Study:
- To analyze the accuracy of retinal changes in predicting CAD among elderly hypertensive patients presenting with angina.
- To evaluate retinal findings as an early screening tool for CAD.
Main Methods:
- Study included 72 elderly hypertensive patients (>65 years) with acute angina.
- Optic fundi assessed for retinopathy via fundus photography.
- Coronary angiography performed to confirm CAD presence.
Main Results:
- Prevalence of CAD was 40.8% and retinopathy was 30.6%.
- Strong association found between CAD and retinopathy (P < .0001).
- Retinopathy demonstrated moderate accuracy in predicting CAD (AUC 70.6%).
Conclusions:
- High prevalence of both CAD and retinopathy observed in the study cohort.
- Retinal changes serve as a potentially valuable screening tool for CAD in elderly hypertensive patients.
- This method is particularly relevant for early detection in resource-limited environments.
Background:
The prevalence of coronary artery disease (CAD) has been increasing in India, and so is the population of elderly patients with hypertension. In the predominantly resource-poor setting prevailing in India, this study is an effort to analyze the accuracy of retinal changes in predicting CAD among a cohort of elderly patients with hypertension presenting to the emergency department with angina.
Methods:
A total of 72 elderly patients with hypertension older than 65 years presenting to the emergency department with acute angina were studied. Optic fundi were assessed for retinopathy after pupillary dilatation, which were photographed. All patients underwent coronary angiogram, and the presence or absence of CAD was determined.
Results:
Mean +/- SD age of the participants was 72.95 +/- 6.51 years, and there were 39 men (54.2%) and 33 women (45.8%). Prevalence of CAD and retinopathy was 40.8% and 30.6%, respectively. Coronary artery disease showed a strong association with retinopathy (P < .0001). Male sex (P = .035), microalbuminuria (P = .025), and increased high-sensitivity C-reactive protein (P = .001) were identified as risk factors for CAD. Tests of accuracy for retinopathy as a predictor of CAD showed a likelihood ratio of a positive test and likelihood ratio of a negative test of 3.92 and 0.52, respectively. Area under the receiver operating characteristics curve was 70.6%.
Conclusion:
Prevalence of CAD (40.8%) and retinopathy (30.6%) was quite high in our cohort of elderly patients with hypertension. Retinal changes of any grade have a moderate accuracy in predicting CAD and, hence, may be used as an early screening tool in a resource poor setting.
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