摘要
目的:研究脑梗死患者脑白质疏松症的发病率及其相关危险因素,探讨大动脉闭塞性病变对小动脉的保护作用及其与LA的相关性。方法:对108例脑梗死患者常规行头部CT、MRI、TCD和MRA检查,评估脑梗死患者LA的发生率、程度及相关危险因素,分析大动脉闭塞性病变与LA的相关性。结果:108例脑梗死患者中,LA发病率为50.9%,伴有颅内外大动脉闭塞性病变患者LA发生率为38%,无颅内外大动脉闭塞性病变患者为65%,两者比较P=0.004,而伴有大动脉闭塞性病变的腔隙性梗死患者LA发病率为36%,单纯腔隙性梗死患者为73%,两者比较P=0.001。Logistic回归分析显示脑梗死患者LA的发生与高龄(P=0.0001)、腔隙性梗死(P=0.004)明显相关,是LA发生的独立危险因素,且脑梗死患者LA的严重程度与年龄呈正相关(r=0.9384)。结论:高龄是脑梗死患者LA发生的最重要危险因素。腔隙性梗死与脑梗死患者LA间的关系支持小血管病变是LA发生的最主要发病机制,而大动脉闭塞性病变的存在对于小血管有保护性作用。
Objective：To study the risk factors of leukoaraiosis（LA） in patients with cerebral infarction and the protective effect of large artery occlusion for small artery diseases.Methods：108 patients with cerebral infarction had undergone cranial CT,MRI,TCD and/or MRA.Incidence and risk factors of LA were estimated.And the relationship between LA and large artery occlusive disease were analyzed.Results：The incidence of LA was 50.9% in 108 patients with cerebral infarction.The incidence of LA in patients with large artery occlusion was significantly lower than that without it（P=0.004）.However,the incidence of LA in lacunar infarct patients accompanied by large artery occlusion was significantly lower than that without it（P=0.001）.With a logistic regression analysis,both aging and lacunar infarct were significatly associated with LA in patients with cerebral infarction（P=0.0001,0.004）.And the degree of LA positively correlated with aging.Conclusion：Aging is the most improtant risk factor for LA in patients with cerebral infarction.And the correlation between the lacunar infarct and LA hints that small artery disease plays an important role in mechanism of LA and the small artery diseases may be protected by large artery occlusion.
出处
《赣南医学院学报》
2011年第2期200-202,共3页
JOURNAL OF GANNAN MEDICAL UNIVERSITY
关键词
脑白质疏松症
脑梗塞
发病率
危险因素
Leukoaraiosis
cerebral infarction
Incidence
Risk factors
