P11.07 DIFFERENCE BETWEEN SYSTOLIC AND DIASTOLIC CAROTID ARTERY STIFFNESS IS INDEPENDENTLY ASSOCIATED WITH LEFT VENTRICULAR MASS INDEX IN HEALTHY MIDDLE-AGED SUBJECTS
- DOI
- 10.1016/j.artres.2010.10.120How to use a DOI?
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Background: Arterial stiffening potentially plays a role in cardiac hypertrophy. We recently demonstrated in patients that arterial stiffness can be substantially pressure dependent and, here, introduce a non-invasive measure to quantify the pressure dependence in the carotid artery, defined as the difference between systolic and diastolic pulse wave velocity (PWVdiff). Both PWVdiff and peripheral wave reflections (quantified by augmentation index, AIx) are biomechanically related to (late) systolic pressure increase. Therefore, we investigated the associations of PWVdiff and AIx with left ventricular mass index (LVMI).
Methods and Results: In 1522 subjects of the Asklepios cohort (age 35‑55 yrs, healthy) PWVdiff was calculated from segmental distensibility coefficients, as obtained by carotid artery ultrasound and tonometry (Figure). PWVdiff ranged from 0.7 to 4.4 m/s. Linear regression analysis showed a significant association of PWVdiff with LVMI (β of 1.26 g/m2.7 per m/s, 95% CI: 0.91–1.62), which remained significant after adjusting for covariates (p=0.03). AIx showed no consistent association with LVMI.
Conclusions: Carotid PWVdiff is independently associated with left ventricular mass index in presumed healthy middle-aged subjects. Non-invasive carotid artery ultrasound and tonometry enable assessment of the contribution of pressure dependent stiffness to LV pressure load, independently of wave reflections.
Cite this article
TY - JOUR AU - K.D. Reesink AU - E. Hermeling AU - S.J. Vermeersch AU - E.R. Rietzschel AU - M.L. De Buyzere AU - T. Gillebert AU - R.J. van de Laar AU - I. Ferreira AU - A.P.G. Hoeks AU - L.M. van Bortel AU - R.S. Reneman AU - P. Segers PY - 2010 DA - 2010/12/02 TI - P11.07 DIFFERENCE BETWEEN SYSTOLIC AND DIASTOLIC CAROTID ARTERY STIFFNESS IS INDEPENDENTLY ASSOCIATED WITH LEFT VENTRICULAR MASS INDEX IN HEALTHY MIDDLE-AGED SUBJECTS JO - Artery Research SP - 180 EP - 180 VL - 4 IS - 4 SN - 1876-4401 UR - https://doi.org/10.1016/j.artres.2010.10.120 DO - 10.1016/j.artres.2010.10.120 ID - Reesink2010 ER -