Abstract
Objective
Aortic stiffness measured by pulse wave velocity (PWV) predicts all-cause and cardiovascular mortality in hemodialysis (HD) patients. However, there is a lack of information on stiffness parameter β, another index of arterial stiffness, in HD patients. The aim of the present study was to investigate the clinical usefulness of stiffness parameter β in HD patients.
Materials and methods
We compared the relation of stiffness parameter β to carotid intima-media thickness (IMT) and plaque score estimated by carotid ultrasound and investigated the relationship between stiffness parameter β and silent cerebral infarction (SCI) in 64 HD patients.
Results
Stiffness parameter β was positively correlated with mean IMT (r = 0.318, P = 0.0113) and plaque score (r = 0.672, P < 0.0001). Stepwise regression analysis revealed that pulse pressure and age were found to be independent determinants of stiffness parameter β (partial correlation coefficients: β = 0.501 and P < 0.0001 for pulse pressure, β = 0.488 and P < 0.0001 for age). In addition, stiffness parameter β in patients with SCI (12.2 ± 3.9) was significantly higher than those (8.0 ± 2.4) in patients without SCI. However, there was no significant difference in mean IMT and plaque score in both groups.
Conclusion
These results suggest that arteriosclerosis assessed by stiffness parameter β is associated with atherosclerotic changes of carotid arteries and with the presence of SCI in HD patients.
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Acknowledgements
The study was supported by grants from the Japan Research Promotion Society for Cardiovascular Diseases and Educational Institute for Integrated Medical Sciences (IREIIMS).
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Ogawa, T., Shimada, M., Ishida, H. et al. Relation of stiffness parameter β to carotid arteriosclerosis and silent cerebral infarction in patients on chronic hemodialysis. Int Urol Nephrol 41, 739–745 (2009). https://doi.org/10.1007/s11255-009-9526-0
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DOI: https://doi.org/10.1007/s11255-009-9526-0