Association of wall thickness of the brachial artery measured with high-resolution ultrasound with risk factors and coronary artery disease

被引:40
作者
Weidinger, F
Frick, M
Alber, HF
Ulmer, H
Schwarzacher, SP
Pachinger, O
机构
[1] Univ Innsbruck, Dept Med, Div Cardiol, A-6020 Innsbruck, Austria
[2] Univ Innsbruck, Inst Biostat, A-6020 Innsbruck, Austria
关键词
D O I
10.1016/S0002-9149(02)02269-5
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Intima-media thickness of the carotid and femoral arteries has been associated with coronary atherosclerosis and its clinical sequelae. The brachial artery (BA) is widely used for the assessment of flow-mediated vasodilation. The aim of this study was to examine whether BA wall thickness (WT) is associated with coronary artery disease (CAD) and risk factors. High-resolution ultrasound (13 MHz) examination of the BA was performed in 179 patients undergoing coronary angiography for the evaluation of chest pain. CAD (greater than or equal to30% diameter stenosis in greater than or equal to1 major branch) was found in 132 patients, whereas 47 patients had smooth coronary arteries. WT of the posterior BA wall (0.4 +/- 0.05 vs 0.35 +/- 0.06 mm, p <0.001) and wall index (WI) (WT/vessel diameter x 100; 16.1 +/- 0.0 vs 13.8 +/- 0.8, p <0.001) were greater in patients with than without CAD. On univariate analysis, WT and WI correlated with age, presence of CAD, systemic hypertension, maximum coronary diameter stenosis, and baseline diameter. On logistic regression analyses adjusting for age, cholesterol levels, systemic hypertension, smoking, and positive family history, WT (p <0.01) and WI (p = 0.02) remained significantly correlated with the presence of CAD. Thus, BA-WT is independently correlated with the presence of CAD. WT may provide a novel noninvasive marker of atherosclerosis that can be assessed together with flow-mediated vasodilation to yield functional and morphologic information in the same vessel. (C) 2002 by Excerpta Medica, Inc.
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收藏
页码:1025 / 1029
页数:5
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