X Luo1, Y Yang, T Cao, Z Li. 1. Department of Ultrasound, Beijing An Zhen Hospital, Capital Medical University, An Zhen Road No. 2, Chao Yang, Beijing, China.
Abstract
AIM: To investigate the difference between the left and right carotid artery intima-media thickness (CIMT) with increasing age and to analyse the importance of the various risk factors associated with left and right CIMT, respectively. MATERIALS AND METHODS: Four hundred and forty-seven people were assigned into six groups based on age. CIMT and haemodynamic parameters of both carotid arteries were measured using the Quality Intima-Media Thickness (QIMT) technique. In addition, biochemical and anthropometric indices were also measured. Their associations were evaluated using simple and partial correlation analysis, adjusted for age. RESULTS: Bilateral CIMTs became thicker with age (p<0.001) and the left CIMT was significantly thicker compared with the right between the ages of 35 and 65 years (p=0.01-0.05). In addition, the right CIMT thickened 10 years later compared with the left. Partial correlation analysis showed that the right CIMT correlated better with haemodynamic parameters compared with the left CIMT, but the left CIMT showed better correlation with biochemical indices. CONCLUSION: Haemodynamic and biochemical changes had different effects on the CIMT depending on the side affected. In addition, the left CIMT was thicker than the right between the ages of 35 and 65 years old.
AIM: To investigate the difference between the left and right carotid artery intima-media thickness (CIMT) with increasing age and to analyse the importance of the various risk factors associated with left and right CIMT, respectively. MATERIALS AND METHODS: Four hundred and forty-seven people were assigned into six groups based on age. CIMT and haemodynamic parameters of both carotid arteries were measured using the Quality Intima-Media Thickness (QIMT) technique. In addition, biochemical and anthropometric indices were also measured. Their associations were evaluated using simple and partial correlation analysis, adjusted for age. RESULTS: Bilateral CIMTs became thicker with age (p<0.001) and the left CIMT was significantly thicker compared with the right between the ages of 35 and 65 years (p=0.01-0.05). In addition, the right CIMT thickened 10 years later compared with the left. Partial correlation analysis showed that the right CIMT correlated better with haemodynamic parameters compared with the left CIMT, but the left CIMT showed better correlation with biochemical indices. CONCLUSION: Haemodynamic and biochemical changes had different effects on the CIMT depending on the side affected. In addition, the left CIMT was thicker than the right between the ages of 35 and 65 years old.
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