KMID : 0191120120270040370
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Journal of Korean Medical Science 2012 Volume.27 No. 4 p.370 ~ p.376
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Relation between Anemia and Vulnerable Coronary Plaque Components in Patients with Acute Coronary Syndrome: Virtual Histology-Intravascular Ultrasound Analysis
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Hong Young-Joon
Jeong Myung-Ho Choi Yun-Ha Song Jin-A Kim Dong-Han Lee Ki-Hong Futoshi Yamanaka Lee Min-Goo Park Keun-Ho Sim Doo-Sun Yoon Nam-Sik Yoon Hyun-Ju Kim Kye-Hun Park Hyung-Wook Kim Ju-Han Ahn Young-Keun Cho Jeong-Gwan Park Jong-Chun Kang Jung-Chaee
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Abstract
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The aim of the present study was to evaluate the plaque components and the predictors of thin-cap fibroatheroma (TCFA) in anemic patients with acute coronary syndrome using virtual histology-intravascular ultrasound (VH-IVUS). Anemia was defined according to criteria of the World Health Organization, (i.e. , hemoglobin levels < 13 g/dL in men and < 12 g/dL in women) and we compared VH-IVUS findings between anemia group (171 patients, 260 lesions) and non-anemia group (569 patients, 881 lesions). Anemia group had greater % necrotic core (NC) volume (21% ¡¾ 9% vs 19% ¡¾ 9%, P = 0.001) compared with non-anemia group. Hemoglobin level correlated negatively with absolute NC volume (r = -0.235, P < 0.001) and %NC volume (r = -0.209, P < 0.001). Independent predictors of TCFA by multivariate analysis were diabetes mellitus (odds ratio [OR], 2.213; 95% confidence interval [CI], 1.403-3.612, P = 0.006), high-sensitivity C-reactive protein (OR, 1.143; 95% CI, 1.058-1.304, P = 0.012), microalbuminuria (albumin levels of 30 to 300 mg/g of creatinine) (OR, 2.124; 95% CI, 1.041-3.214, P = 0.018), and anemia (OR: 2.112; 95% CI 1.022-3.208, P = 0.028). VH-IVUS analysis demonstrates that anemia at the time of clinical presentation is associated with vulnerable plaque component in patients with acute coronary syndrome.
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KEYWORD
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Acute Coronary Syndrome, Plaque, Anemia, Intravascular Ultrasound
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