Abstract:Cardiovascular and cerebrovascular diseases are in the first place of death rate at present, there are many articles on how to prevent and treat them at early stage to reduce the death rate. The study in this paper is mainly on the change of cerebral circulation dynamics in the elder patients with coronary heart disease whose ventricular function is basically normal. Methods: Taking 60 cases of elder patients with coronary heart diseases and 68 normal cases as comparative group to see the parameters of heart function and cerebral circulation dynamics parameters. Results: among & heart function indexes in coronary heart disease group, only aortic internal diameter has distinguishable reduction, other indexes are normal, but cerebral circulation dynamics parameters have distinguishable change. It mainly shows that both the maximal and minimal blood speed of carotid are reduced; carotid diameter is reduced; pulse index and resistance index are all raised; cerebrovascular and special resistance are increased; nerve self-regulation ability for cerebrovascular function and critical pressure are also all decreased. Conclusion: Though the elder patients with coronary heart disease have not got any brain symptom and sign, their cerebrovascular function has been early damaged. It shows that it is important for the elder patients with coronary heart disease to prevent cerebrovascular diseases at early stage.