Common carotid artery end-diastolic velocity is independently associated with future cardiovascular events

被引:47
作者
Chuang, Shao-Yuan [1 ]
Bai, Chyi-Huey [2 ,3 ]
Cheng, Hao-Ming [4 ,5 ,6 ]
Chen, Jiunn-Rong [7 ]
Yeh, Wen-Ting
Hsu, Pai-Feng [4 ,5 ,6 ]
Liu, Wen-Ling [1 ]
Pan, Wen-Harn [1 ,8 ]
机构
[1] Natl Hlth Res Inst, Inst Populat Hlth Sci, Zhunan, Miaoli County, Taiwan
[2] Shin Kong Wu Ho Mem Hosp, Cent Lab, Taipei, Taiwan
[3] Taipei Med Univ, Sch Publ Hlth, Taipei, Taiwan
[4] Taipei Vet Gen Hosp, Dept Med, Taipei, Taiwan
[5] Natl Yang Ming Univ, Inst Publ Hlth, Taipei 112, Taiwan
[6] Natl Yang Ming Univ, Community Med Res Ctr, Taipei 112, Taiwan
[7] Changhua Christian Hosp, Yuan Branch, Taipei, Yunlin, Taiwan
[8] Acad Sinica, Inst Biomed Sci, Taipei 115, Taiwan
关键词
End-diastolic velocity; stroke; ischaemic heart disease; risk assessment and risk reclassification; INTIMA-MEDIA THICKNESS; CEREBRAL-BLOOD-FLOW; CORONARY-HEART-DISEASE; LEFT-VENTRICULAR MASS; WALL SHEAR-STRESS; ISCHEMIC-STROKE; MYOCARDIAL-INFARCTION; RISK; ATHEROSCLEROSIS; CIRCULATION;
D O I
10.1177/2047487315571888
中图分类号
R5 [内科学];
学科分类号
100201 [内科学];
摘要
Background Carotid ultrasound is widely used to measure haemodynamic parameters, such as intima-media thickness and blood flow velocities (i.e. peak-systolic velocity [PSV], end-diastolic velocity [EDV], and resistive index [RI]). However, the association between blood flow velocities and cardiovascular events remains unclear. Design and methods Baseline data, including quantitative ultrasonography, were obtained from 3146 adults as part of the Cardiovascular Diseases Risk Factor Two-Township Study. Occurrence of ischaemic heart disease (IHD) and stroke was determined from insurance claims and death certificates. The hazard ratio (HR) of CVD (IHD and stroke combined) was calculated for EDV and PSV of the common carotid artery using Cox models. Net reclassification index and integrated discrimination index were used to evaluate the capacity of EDV to predict IHD, stroke, and CVD. Results Median follow-up was 12.8 years. There were 220 cases of IHD and 247 cases of stroke. The HR (95% CI) for CVD from univariate analysis was 4.54 (3.51-5.85) for EDV <15cm/s relative to EDV20cm/s (p<0.0001), and 3.23 (2.51-4.15) for PSV<65cm/s relative to PSV80cm/s (p<0.0001). The HR (95% CI) for CVD from multivariate analysis was 1.66 (1.22-2.26) for EDV<15cm/s relative to EDV20cm/s, and 1.39 (1.03-1.89) for PSV<65cm/s relative to PSV80cm/s. EDV slightly but significantly improved prediction of CVD (integrated discrimination index 0.56%, p=0.016). Conclusions Low common carotid EDV and PSV were independently associated with future CVD, and EDV improved the prediction of future CVD. More prospective studies are required in different ethnic groups to understand the significance and implication of these findings.
引用
收藏
页码:116 / 124
页数:9
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