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Background  Interactions between the left ventricular (LV) and the arterial system, (ventricular-arterial coupling) are key determinants of cardiovascular function. However, most of studies covered multiple cardiovascular risk factors, which also contributed to the morphological and functional changes of LV. The aim of this study was to examine the relationship between arterial stiffness and LV structure and function in healthy women with a low burden of risk factors.    Methods  Healthy women from the Twins UK cohort ( n  = 147, mean age was 54.07 ± 11.90 years) were studied. Arterial stiffness was evaluated by carotid-femoral pulse wave velocity (cf-PWV). LV structure and function were assessed by two-dimensional speckle tracking echocardiography.    Results  cf-PWV was significantly associated with most measures of LV geometry and function, including relative wall thickness (RWT), E/e’ ratio, global circumferential and radial strain, apical rotation and LV twist (each  p  &lt;  0.05), but bore no relation to global longitudinal strain. After adjustment for age, body mass index, blood pressure and heart rate, cf-PWV was significantly correlated with RWT, global circumferential strain, apical rotation and LV twist (β = 0.011, − 0.484, 1.167 and 1.089, respectively, each  p  ≤  0.05).    Conclusions  In healthy women with a low burden of risk factors, elevated arterial stiffness was intimately interwoven with increased LV twisting even before LV dysfunction becomes clinically evident.

Relation of arterial stiffness to left ventricular structure and function in healthy women