Objective To observe the hemodynamics changes in carotid stenosis patients before and after carotid endarterectomy(CEA),so as to provide a theoretic evidence for the clinical observation.

• 目的观察颈动脉狭窄患者实施颈动脉内膜剥脱术手术前后血流动力学改变的规律,为临床护理提供依据。