Lacunar infarcts defined by magnetic resonance imaging of 3660 elderly people -: The cardiovascular health study
Lacunar infarcts defined by magnetic resonance imaging of 3660 elderly people -: The cardiovascular health study
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DOI:
10.1001/archneur.55.9.1217
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发表时间:
1998-09-01
影响因子:
--
通讯作者:
Price, TR
中科院分区:
文献类型:
--
作者:
Longstreth, WT;Bernick, C;Price, TR
Objective: To identify risk factors for and functional consequences of lacunar infarct in elderly people.Methods: The Cardiovascular Health Study (CHS) is a longitudinal study of people 65 years or older, in which 3660 participants underwent cranial magnetic resonance imaging (MRI). Neuroradiologists read scans in a standard fashion without any clinical information. lacunes were defined as subcortical areas consistent with infarcts measuring 3 to 20 mm. In cross-sectional analyses, clinical correlates were contrasted among groups defined by MRI findings.Results: Of the 3660 subjects who underwent MRI, 2529 (69%) were free of infarcts of any kind and 841 (23%) had 1 or more lacunes without other types present, totaling 1270 lacunes. For most of these 841 subjects, their lacunes were single (66%) and silent (89%), namely without a history of transient ischemic attack or stroke. In multivariate analyses, factors independently associated with lacunes were increased age, diastolic blood pressure, creatinine, and pack-years of smoking (listed in descending order of strength of association; for all, P