The Correlation Analysis of the Ankle-brachial Index and the Severity of Coronary Heart Disease

Abstract：Objective:To study the correlation of the ankle-brachial index and severity of coronary heart disease,and evaluate the predictive value. Methods:98 patients with coronary artery disease as coronary disease group,which were grouped into single-vessel group(n=41) and multi-vessel group(n=57) according to the lesion number,and into slight lesion group(n=72) and severe lesion group(n=26) according to the severity.50 healthy people were chosen as healthy group in the corresponding period.The differences of ankle-brachial between healthy group and coronary disease group,single-vessel group and multi-vessel group,slight lesion group and severe lesion group were analyzed.Results:The ankle brachial index of coronary disease group was apparently lower than healthy group,the difference had statistical significance(P<0.05),and multi-vessel group was obviously lower than single-vessel group,the difference had statistical significance as well(P<0.05).Slight lesion group’s ankle brachial index was much higher than severe lesion group,the difference between them was statistically significant(P<0.05).Conclusion:The ankle-brachial index and the severity of coronary heart disease have a significant correlation,patients with more severe disease have smaller ankle-brachial index.