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有脑梗塞病灶但临床无相应病史和症状者临床称其为“无症状中风”。本文就无症状中风的研究现状概述如下。 无症状中风脑部病损常与其供血的脑动脉相符合,故设想为脑梗塞。因短暂的脑缺血(TIA)也可能遗留梗塞灶。1 发病率和部位 部分脑部病损进展缓慢,时间相对较长,可无症状和体征。有人对2329例TIA时不伴有临床症状、发作后无任何体征的中风患者进行了研究,提出CT上有局限低密度区的无症状中风不宜称为急性中风发作。符合无症状中风者占13％,其一般表现病损范围小,且多局限于基底节及半卵圆中心区,比有症状的脑梗塞更常见。80％的无症
There are cerebral infarction lesions but no clinical history and symptoms clinically called “asymptomatic stroke.” The current status of the research on asymptomatic stroke is summarized below. Asymptomatic stroke brain lesions and their blood supply often consistent with cerebral arteries, so the idea of cerebral infarction. Infarct may also be due to transient cerebral ischemia (TIA). 1 incidence and part of the brain lesions progress slowly, the time is relatively long, can be asymptomatic and signs. Some 2329 cases of TIA are not associated with clinical symptoms, no signs of stroke after the onset of stroke were studied, and suggested that asymptomatic stroke with limited low-density area CT should not be called an acute stroke. Asymptomatic strokes accounted for 13% of the general performance of the lesion is small, and more confined to the basal ganglia and semi-oval central area, more common than symptomatic cerebral infarction. 80% of asymptomatic