Evaluation of resistive index using color Doppler imaging of orbital arteries in geriatric patients with hypertension
| Autor: | Abdulgafur Bata, Omer Faruk Yilmaz, Omer Karakas, Ekrem Karakas, Fatih Kurnaz, Sema Yildiz, Tuğba Göncü, Ali Akal, Turgay Ulas, Fatıma Nurefşan Boyacı |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Male
Central retinal artery medicine.medical_specialty hypertensive retinopathy genetic structures Retinal Artery Hemodynamics Eye Ciliary Arteries Ophthalmic Artery Hypertensive retinopathy Retinal Diseases lcsh:Ophthalmology medicine.artery Internal medicine medicine Humans Ultrasonography Doppler Color resistive index Aged Retrospective Studies business.industry Color Doppler imaging medicine.disease Ciliary arteries Surgery Ophthalmology medicine.anatomical_structure Cross-Sectional Studies lcsh:RE1-994 Ophthalmic artery Hypertension Vascular resistance Cardiology Original Article Female Vascular Resistance business Retinopathy |
| Zdroj: | Indian Journal of Ophthalmology, Vol 62, Iss 6, Pp 671-674 (2014) Indian Journal of Ophthalmology |
| ISSN: | 1998-3689 0301-4738 |
| Popis: | Background and Aim: Resistive index (RI) is an indirect measurement of blood flow resistance that can be used to evaluate vascular damage in ophthalmologic disease. The purpose of this study was to evaluate the association between RI values of orbital arteries using the color Doppler imaging (CDI) in geriatric hypertensive patients with or without retinopathy. Setting and Design: Designed as a cross-sectional study. Materials and Methods: We evaluated 60 geriatric patients with hypertension (Group 1) and 30 healthy subjects (Group 2). Further, the patients with hypertension were grouped into two: Group 1a consisted of patients with retinopathy ( n = 30), and group 1b consisted of patients without retinopathy ( n = 30). The mean RI values of ophthalmic artery (OA), central retinal artery (CRA), and posterior ciliary artery (PCA) were measured using CDI. Results: Compared to group 2, group 1 had significantly higher mean resistive index of PCA levels ( P = 0.017), whereas there were no statistical difference in mean resistive indexes of OA and CRA (both P > 0.05). Besides, there were no statistical difference in mean resistive indexes of OA, CRA, and PCA between the group 1a and group 1b ( P > 0.05 for all). Mean resistive indexes of OA, CRA, and PCA were significantly correlated with the duration of hypertension ( r = 0.268, P = 0.038; r = 0.315, P = 0.014; r = 0.324, P = 0.012, respectively). Conclusions: Our study indicates that RI might be a useful marker for the ocular hemodynamic of retinal vessels, provides morphologic and vascular information in hypertension and hypertensive retinopathy. |
| Databáze: | OpenAIRE |
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