关键词: 糖尿病; 高血压; 超声; 彩色多普勒; 踝-肱指数; 并发症; 大血管

Abstract: Objective To observe the characteristics of lower extremity atherosclerosis in diabetic patients and hypertension patients by Lower extremity vascular ultrasound and ankle brachial index(ABI), and to understand the relationship between the incidence and progression of lower extremity atherosclerosis and macrovascular complications.Methods We chose color Doppler ultrasound and ABI to monitor the incidence and characteristics of lower extremity atherosclerosis in diabetic patients(DM), hypertension patients(HT), diabetic patients with hypertension(DM-HT) and patients without diabetes(N-DM) and hypertension(N-HT). Then we collected the data of macrovasular complications in each group.Results The incidence of lower extremity atherosclerosis in DM group and HT group are significantly higher than that in non-diabetes mellitus-non-hypertension group(P<0.01). And the incidence of Lower extremity atherosclerosis in DM group is even higher than that in HT group, particularly in moderate to severe stenosis(82.06%). The incidence of marcovascular complications is closely related to the severity of lower extremity atherosclerosis.Conclusions The severity of lower extremity atherosclerosis is more severe in diabetic patients and hypertension patients. Color Doppler ultrasound and ABI are the easy and efficient ways to monitor the severity of lower extremity atherosclerosis; both of them are closely related to the incidence of macrovascular complincations.

Key words: Diabetes mellitus; Hypertension; Ultrasound; color Doppler; Ankle brachial index; Complications; macrovascular