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  • Title: Pulse wave velocity and augmentation index are not independently associated with carotid atherosclerosis in patients with rheumatoid arthritis.
    Author: Robustillo-Villarino M, Alegre-Sancho JJ, Rodilla-Sala E, Corrales A, Llorca J, Gonzalez-Gay MA, Dessein PH.
    Journal: Clin Rheumatol; 2017 Nov; 36(11):2601-2606. PubMed ID: 28547208.
    Abstract:
    Arterial stiffness can enhance cardiovascular risk by increasing atherogenesis or adverse hemodynamic effects. We examined whether the arterial stiffness markers of aortic pulse wave velocity (PWV) and the augmentation index (AIx) are independently associated with carotid artery intima-media thickness (IMT) and plaque in patients with rheumatoid arthritis (RA). PWV and AIx were determined by brachial oscillometry using the Mobil-O-Graph® system and carotid IMT and plaque by ultrasound in 194 consecutive RA patients without established cardiovascular disease, chronic kidney disease, and diabetes at disease onset. In crude analysis, PWV was associated with IMT (β (95% CI) = 0.04 (0.03 to 0.05), p value < 0.0001) and plaque (OR (95% CI) = 1.69 (1.40 to 2.04), p value < 0.0001). Upon adjustment for the confounders of age, sex, mean blood pressure, body height, and cardiovascular risk factors comprising smoking, the atherogenic index, and diabetes, PWV was not related to IMT (β (95% CI) = 0.01 (-0.02 to 0.04), p value = 0.5) or plaque (OR (95% CI) = 0.99 (0.96 to 1.01), p value = 0.3). AIx was not associated with IMT in crude (β (95% CI) = -0.002 (-0.004 to 0.007), p value = 0.2) and adjusted analyses (β (95% CI) = -0.002 (-0.004 to 0.000), p value = 0.06). AIx was also unrelated to carotid plaque in crude (OR (95% CI) = 1.04 (0.60 to 1.82), p value = 0.9) and adjusted analyses (OR (95% CI) = 0.97 (0.94 to 1.01), p value = 0.1). PWV and AIx are not independently associated with subclinical carotid atherosclerosis in RA.
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