Analysis of carotid ultrasound in a high-stroke-risk population.

Abstract

This study aims to explore the risk factors for carotid plaque (CP) and carotid common artery intima-media thickening (CCAIMT) and clarify the relationship between the risk factors with the number of CPs and the side of CCAIMT in a high-stroke-risk population in Qujing, Yunnan, China. Carotid ultrasonography was performed in 430 participants with high stroke risk, who were divided into different groups according to their ultrasound results. The risk factors and blood biochemical indices were recorded for assessment. The prevalence rates of CP and CCAIMT were 88.1% and 70.5%, respectively. Multivariate logistic regression analysis identified age and lack of physical exercise as risk factors of CP. Compared to participants without CP, participants who performed little physical exercise were prone to have one CP, while participants with risk factors for smoking, older age, and physical inactivity were more likely to have several CPs. Risk factors for CCAIMT were older age, male, and the levels of low density lipoprotein cholesterol. Risk factors for left CCAIMT included a history of hyperlipidemia and low density lipoprotein cholesterol, while male sex was the sole risk factor for right CCAIMT. Finally, male sex and advanced age were identified as risk factors for dual CCAIMT. The research reveals the risk factors for CP and CCAIMT, also clarifies the relationship between the risk factors, CP numbers, and the side of CCAIMT.