title: [Detection rates of atherosclerosis by carotid versus lower limb ultrasonography in newly diagnosed type 2 diabetics].
abstract: OBJECTIVE
  To compare the detection rates of atherosclerosis by carotid versus lower limb ultrasound in newly diagnosed type 2 diabetics and analyze the relationship between atherosclerosis and cardio-cerebrovascular events.
  
  
  METHODS
  A total of 148 newly diagnosed type 2 diabetics were recruited. Both carotid and lower extremity atherosclerosis were assessed by Doppler ultrasound. Diabetic atherosclerosis was defined as the presence of either carotid or lower extremity plaques in any of the above-mentioned arterial segments. A kappa value was computed to document the agreement between isolated carotid (or lower limb) atherosclerosis and diabetic atherosclerosis. The prevalence of cardio-cerebrovascular events was compared among different distribution types of atherosclerosis.
  
  
  RESULTS
  According to the diagnostic criteria, the prevalence of diabetic atherosclerosis was 66.2% in the newly diagnosed type 2 diabetes. Based on carotid or lower extremity ultrasound, the prevalence of diabetic atherosclerosis was 27.0% and 62.2% respectively in newly diagnosed type 2 diabetes. The kappa values for the agreement between carotid/lower limb atherosclerosis and diabetic atherosclerosis were 0.32/0.91 (95% confidence interval 0.22-0.42 for carotid vs 0.84-0.98 for lower extremity). The combination of carotid and lower extremity arterial atherosclerosis was associated with a significantly increased detection rate of cardio-cerebrovascular events (26.5%) versus those with either carotid or lower extremity arterial atherosclerosis (0% and 10.3% respectively).
  
  
  CONCLUSIONS
  The combination of carotid and lower extremity ultrasonography can more accurately reflect the atherosclerotic lesions in type 2 diabetes. Due to a higher prevalence of cardio-cerebrovascular events, type 2 diabetics with both carotid and lower extremity atherosclerosis should be managed more aggressively to reduce the risk of cardio-cerebrovascular events.
authors.affiliation: Department of Endocrinology & Metabolism, Shanghai Jiaotong University Affiliated Sixth People's Hospital; Shanghai Clinical Center for Diabetes; Shanghai Diabetes Institute; Shanghai Key Laboratory of Diabetes Mellitus, Shanghai 200233, China.
authors.forename: Li-bo
authors.initials: LB
authors.lastname: Yu
authors.forename: Ying
authors.initials: Y
authors.lastname: Shen
authors.forename: Lian-xi
authors.initials: LX
authors.lastname: Li
authors.forename: Yin-fang
authors.initials: YF
authors.lastname: Tu
authors.forename: Fang
authors.initials: F
authors.lastname: Liu
authors.forename: Yu-qian
authors.initials: YQ
authors.lastname: Bao
authors.forename: Song-hua
authors.initials: SH
authors.lastname: Wu
authors.forename: Wei-ping
authors.initials: WP
authors.lastname: Jia
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001158:Arteries / Q000000981:diagnostic imaging; D050197:Atherosclerosis / Q000000981:diagnostic imaging* / Q000209:etiology; D002339:Carotid Arteries / Q000000981:diagnostic imaging*; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D035002:Lower Extremity / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography; D055815:Young Adult