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KMID : 0882420110810030351
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Korean Journal of Medicine
2011 Volume.81 No. 3 p.351 ~ p.358
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The Relationship between Diabetic Retinopathy and Macrovascular Complication in Patients with Type 2 Diabetes
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Hong Sang-Mo
Park Jung-Hwan
Lim Young-Hyo
Park Yong-Soo
Kim Dong-Sun
Choi Woong-Hwan
Ahn You-Hern
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Abstract
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Background/Aims : Type 2 diabetes with microvascular complications is often accompanied by macrovascular complications. However, the relationship between the two complications is unclear. In this study, we determined the relationship between diabetic retinopathy and morphological changes of the carotid artery.
Methods: We analyzed the presence of plaque and mean carotid intima-media thickness (CIMT) in patients with type 2 diabetes (n = 133) using high-resolution ultrasound. The presence and severity of retinopathy were graded according to fundus photographs.
Results: The mean CIMT of the diabetic retinopathy (DR) group (0.111 ± 0.048 cm) was significantly greater than that of the nondiabetic retinopathy (No DR) group (0.074 ± 0.039 cm, p = 0.007). An abnormal mean CIMT (> 0.08 cm) was more frequently observed in the DR group (76%) than that in the No DR group (23.1%; odds ratio, 10.609; 95% confidence interval, 3.072-36.639; adjusted by age, body mass index, hypertension, and diabetes duration). Although the mean CIMT in patients with plaque was significantly greater than that of patients without plaque, no significant difference was observed between the DR (36%, 17 patients) and NoDR (18.5%, 20 patients) groups in the presence of plaque.
Conclusions: Diabetic retinopathy was associated with an increased CIMT but not with atherosclerotic plaques. However, the increases in IMT were associated with the presence of plaques, which predispose patients to cardiovascular disease. These results imply that the microvascular complications of diabetes have indirect relationships with the cardiovascular complications of diabetes.
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KEYWORD
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Atherosclerosis, Cardiovascular Diseases, Carotid Arteries, Diabetes Mellitus, Retinopathy
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