Microvascular Structure and Network in the Retina of Patients With Ischemic Stroke

YT Ong, DA De Silva, CY Cheung, HM Chang, CP Chen, MC Wong, TY (Tien Yin) Wong, Kamran Ikram

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Abstract

Background and Purpose Microvascular disease has been implicated in the pathogenesis of stroke. The retina provides a window to assess microcirculation noninvasively. We studied the association between quantitatively measured retinal microvascular characteristics and acute ischemic stroke. Methods We conducted a case-control study with acute ischemic stroke patients recruited from a tertiary hospital in Singapore and controls from the Singapore Epidemiology of Eye Disease program matched by 10-year age strata, sex, and race. Strokes were classified using modified Trial of Org 10172 in Acute Stroke Treatment (TOAST) criteria. Retinal vascular parameters were measured from retinal fundus photographs using a computer program. Logistic regression models for stroke were constructed adj Results We included 557 ischemic stroke cases (261 lacunar, 185 large artery, and 54 cardioembolic stroke) and 557 controls. After adjusting for vascular risk factors, decreased arteriolar fractal dimension (odds ratio [OR] per standard deviation [SD] decrease, 2.28; 95% confidence interval [CI], 1.80-2.87) and venular fractal dimension (OR per SD decrease, 1.80; 95% CI, 1.46-2.23), increased arteriolar tortuosity (OR per SD increase, 1.56; 95% CI, 1.25-1.95), and venular tortuosity (OR per SD i Conclusions Patients with ischemic stroke have a sparser and more tortuous microvascular network in the retina. These findings provide insight into the structure and pattern of microcirculation changes in stroke.
Original languageUndefined/Unknown
Pages (from-to)2121-2127
Number of pages7
JournalStroke
Volume44
Issue number8
DOIs
Publication statusPublished - 2013

Research programs

  • EMC OR-01-60-01

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