Different patterns of silent cerebral infarct in patients with coronary artery disease or hypertension

被引:28
作者
Hoshide, S [1 ]
Kario, K [1 ]
Mitsuhashi, T [1 ]
Sato, Y [1 ]
Umeda, Y [1 ]
Katsuki, T [1 ]
Shimada, K [1 ]
机构
[1] Jichi Med Sch, Dept Cardiol, Minami Kawachi, Tochigi 3290498, Japan
关键词
silent cerebral infarction; coronary artery disease; hypertension; atherosclerosis;
D O I
10.1016/S0895-7061(00)01293-0
中图分类号
R6 [外科学];
学科分类号
1002 ; 100210 ;
摘要
The aim of the present study was to clarify the differences in the progression and the characteristics of silent cerebral infarcts (SCI) between patients with coronary artery disease (CAD) and hypertensive patients. Silent cerebral infarcts, a powerful prognostic indicator for stroke, are frequently found in patients with CAD and in hypertensives. However, the differences in the characteristics of SCI and related risk factors between CAD and hypertensive patients have not been thoroughly investigated. We evaluated the number of SCI and their distribution using brain magnetic resonance imaging (T1- and T2-weighted images) in 107 patients with CAD (validated by coronary angiography) and 101 hypertensive patients without history of clinical stroke. The prevalence of multiple SCI (three or more infarcts per person) in patients with CAD and with hypertension was significantly higher than in hypertensives without CAD (46% v 21%; P = .001), whereas that of patients with CAD without hypertension was intermediate (31%). The patients with multi- (two- or three-vessel) vessel diseases (VD) had a significantly higher prevalence of multiple SCI than the hypertensives and the no-stenosis or 1-VD group (68.1% in the 3-VD group, 52.0% in the 2-VD group, 26.8% in the I-VD group, and 21.0% in the no-stenosis group). Multiple logistic regression analysis revealed that in the CAD group, the number of involved coronary arteries was an independent determinant of SCI (P < .005), whereas in the hypertensive group, age was an independent determinant of SCI (P < .005). When we investigated the distribution of SCI, in the CAD group, SCI in the deep perforator territory (the basal ganglia and the thalamus) were independently associated with the number of involved coronary arteries (P < .005), whereas SCI in the white matter were independently associated with age only (P < .005). In conclusion, SCI were more advanced in the patients with multivessel CAD than in the hypertensive patients, and were more common in patients with CAD and hypertension than in those without hypertension. Coronary atherosclerosis was independently and specifically associated with SCI located in the deep perferator territory but not of SCI located in the white matter. The CAD-atherosclerosis and hypertension may be independently involved in the pathologic process of SCI. (C) 2001 American Journal of Hypertension, Ltd.
引用
收藏
页码:509 / 515
页数:7
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