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. 2016 Aug;10(4):224-30.
doi: 10.1177/1753944716630869. Epub 2016 Feb 14.

The association of severity of retinal vascular changes and cardiac remodelling in systemic hypertension

Mary Varghese  1 , Srilakshmi M Adhyapak  2 , Tinku Thomas  3 , Meera Sunder  4 , Kiron Varghese  5
Affiliations

The association of severity of retinal vascular changes and cardiac remodelling in systemic hypertension

Mary Varghese et al. Ther Adv Cardiovasc Dis. 2016 Aug.

Abstract

Objectives: The aim of the study was to explore the association between hypertensive retinopathy, grades of retinopathy and cardiac remodelling.

Methods: This was a cross-sectional observational study. A total of 500 consecutive hypertensive adults from the in-patient population were studied for the presence of hypertensive retinopathy by dilated fundoscopy. The presence of cardiac remodelling due to hypertension was studied both by electrocardiography (ECG) and echocardiography. Hypertensive target organ damage in other organs was also screened. In addition, the association of grades of hypertensive retinopathy with target organ damage was also analyzed.

Results: Systolic blood pressure (BP) at presentation and duration of hypertension showed no relationship with markers of hypertensive heart disease. However, diastolic BP was significantly higher in patients with retinopathy. Hypertensive retinopathy was diagnosed in 324 subjects of whom 90 had grades 3 and 4 retinopathy. Patients with grades 3 and 4 retinopathy had significant associations with ECG evidence of left ventricular (LV) strain pattern and left atrial enlargement, and a weaker association with left ventricular hypertrophy (LVH) using QRS voltage criteria (Sokolov-Lyon). On echocardiography, grades 3 and 4 retinopathy were significantly associated with LVH, left atrial enlargement and reduced left ventricular ejection fraction (LVEF), as well as with higher creatinine values. A large number of these patients presented with heart failure. Cardiac remodelling was not seen in patients without retinopathy and was uncommon in patients with grades 1 and 2 retinopathy.

Conclusion: Grades 3 and 4 retinopathy demonstrated a significant association with LV strain pattern and left atrial enlargement on ECG, LVH and reduced LVEF on echocardiography as well as with heart failure. There was no relationship with systolic BP and duration of hypertension, while diastolic BP showed a significant positive correlation. Signs of hypertensive heart disease were practically absent in patients without hypertensive retinopathy and uncommon in those with grade 1-2 alterations.

Keywords: diabetes mellitus; hypertension; ischaemia; retinopathy; target organ damage.

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Conflict of interest statement

Conflict of interest statement: The authors declare that there is no conflict of interest.

Figures

Figure 1.
Figure 1.
The odds ratio of hypertensive retinopathy and its associations.
See this image and copyright information in PMC

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