TY - JOUR
T1 - Microvascular Structure and Network in the Retina of Patients With Ischemic Stroke
AU - Ong, YT
AU - De Silva, DA
AU - Cheung, CY
AU - Chang, HM
AU - Chen, CP
AU - Wong, MC
AU - Wong, TY (Tien Yin)
AU - Ikram, Kamran
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
U2 - 10.1161/STROKEAHA.113.001741
DO - 10.1161/STROKEAHA.113.001741
M3 - Article
C2 - 23715958
SN - 0039-2499
VL - 44
SP - 2121
EP - 2127
JO - Stroke
JF - Stroke
IS - 8
ER -