关键词: 危险因素; 卒中; 血液动力学现象; 高血压

Abstract: Objective To probe into the relationship between cerebral vascular hemodynamicsindexes (CVHI)accumulative score and risk factors of stroke in urban population aged above 50 in Changsha.Methods Residents aged above 50 in changsha urban were selected randomly to spot-check in2008. In the baseline survey, the risk factors of stroke, such as hypertension, diabetes, cardiacdisease, hyperlipemia, smoking and drinking were collected and CVHI were examined. CVHIaccumulative score was synthesized according to contribution of single index. According towhether with any risk factors, the subjects were divided into the control group,the single riskfactor group and the multiple risk factors group. We study the relationship between the stroke riskfactors and CVHI accumulative score.Results (1)Compared with the control group, scores of CVHI score in the hypertension andthe multiple risk factors group were significantly decreased(P <0.01). And the rates of high-riskgroups whose score bellowed 75 points and the very high-risk groups whose score bellowed 50points in the hypertension group and the multiple risk factors group were more higher than thosein the control group, the differences were significant(P <0.01). (2)With the increase of risk factors,the scores of CVHI were decreased and the rates of high-risk groups and the very high-riskgroups were increased respectively(P <0.01).Conclusion CVHI score would significantly reduce with hypertension and multiple risk factors.

Key words: Risk factors; Stoke; Hemodynamic phenomena; Hypertension