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Carotid Artery End-Diastolic Velocity and Future Cerebro-Cardiovascular Events in Asymptomatic High Risk Patients

 Hyemoon Chung  ;  Young Hak Jung  ;  Ki-Hyun Kim  ;  Jong-Youn Kim  ;  Pil-Ki Min  ;  Young Won Yoon  ;  Byoung Kwon Lee  ;  Bum-Kee Hong  ;  Se-Joong Rim  ;  Hyuck Moon Kwon  ;  Eui-Young Choi 
 KOREAN CIRCULATION JOURNAL, Vol.46(1) : 72-78, 2016 
Journal Title
Issue Date
Carotid arteries ; Doppler ; Events
BACKGROUND AND OBJECTIVES: Prognostic value of additional carotid Doppler evaluations to carotid intima-media thickness (IMT) and plaque has not been completely evaluated.
SUBJECTS AND METHODS: A total of 1119 patients with risk factors for, but without, overt coronary artery disease (CAD), who underwent both carotid ultrasound and Doppler examination were included in the present study. Parameters of interest included peak systolic and end-diastolic velocities, resistive indices of the carotid arteries, IMT, and plaque measurements. The primary end-point was all-cause cerebro-cardiovascular events (CVEs) including acute myocardial infarction, coronary revascularization therapy, heart failure admission, stroke, and cardiovascular death. Model 1 covariates comprised age and sex; Model 2 also included hypertension, diabetes and smoking; Model 3 also had use of aspirin and statin; and Model 4 also included IMT and plaque.
RESULTS: The mean follow-up duration was 1386±461 days and the mean age of the study population was 60±12 years. Amongst 1119 participants, 43% were women, 57% had a history of hypertension, and 23% had diabetes. During follow-up, 6.6% of patients experienced CVEs. Among carotid Doppler parameters, average common carotid artery end-diastolic velocity was the independent predictor for future CVEs after adjustments for all models variables (HR 0.95 per cm/s, 95% confident interval 0.91-0.99, p=0.034 in Model 4) and significantly increased the predictive value of Model 4 (global χ(2)=59.0 vs. 62.8, p=0.029).
CONCLUSION: Carotid Doppler measurements in addition to IMT and plaque evaluation are independently associated with future CVEs in asymptomatic patients at risk for CAD.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Hyuck Moon(권혁문) ORCID logo https://orcid.org/0000-0001-9901-5015
Kim, Ki Hyun(김기현)
Kim, Jong Youn(김종윤) ORCID logo https://orcid.org/0000-0001-7040-8771
Min, Pil Ki(민필기) ORCID logo https://orcid.org/0000-0001-7033-7651
Yoon, Young Won(윤영원) ORCID logo https://orcid.org/0000-0002-0907-0350
Lee, Byoung Kwon(이병권) ORCID logo https://orcid.org/0000-0001-9259-2776
Rim, Se Joong(임세중) ORCID logo https://orcid.org/0000-0002-7631-5581
Choi, Eui Young(최의영) ORCID logo https://orcid.org/0000-0003-3732-0190
Hong, Bum Kee(홍범기) ORCID logo https://orcid.org/0000-0002-6456-0184
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