高脂血症是否是一种脑血管病的独立危险因素,在最近的资料中是有所分歧的。脑血管贮备能力的减少意味着脑动脉适应危险条件的能力减少,可能预示有较高中风的危险。目的　是用经颅多普勒超声比较高脂血症病人与健康者之间的脑血管贮备能力。方法　经颅多普勒分别记录34例a和b型 Whether or not hyperlipidemia is an independent risk factor for cerebrovascular disease is disagreeable in recent data. The reduction of cerebrovascular reserve capacity means that the reduced ability of the cerebral arteries to adapt to dangerous conditions may indicate a higher risk of stroke. The purpose is to compare transcranial Doppler ultrasound between patients with hyperlipidemia and healthy cerebral vascular reserve capacity. Methods Transcranial Doppler were recorded 34 cases of a and b type