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  • Title: Premature aortic stiffness in systemic lupus erythematosus by transesophageal echocardiography.
    Author: Roldan CA, Joson J, Qualls CR, Sharrar J, Sibbitt WL.
    Journal: Lupus; 2010 Dec; 19(14):1599-605. PubMed ID: 20813797.
    Abstract:
    To assess aortic stiffness by transesophageal echocardiography (TEE) and to determine its clinical predictors and relation to age, blood pressure, renal function, and atherosclerosis, 50 patients with systemic lupus erythematosus (SLE), 94% women, with a mean age of 38 ± 12 years, and 22 age and gender-matched healthy controls underwent clinical and laboratory evaluations and multiplane TEE to assess stiffness, intima-media thickness (IMT), and plaques of the proximal, mid, and distal descending thoracic aorta. Stiffness at each level and overall aortic stiffness by the pressure-strain elastic modulus was higher in patients than in controls after adjusting for age (overall, 8.25 ± 4.13 versus 6.1 ± 2.5 Pascal units, p = 0.01). Patients had higher aortic stiffness than controls after adjusting both groups to the same mean age, blood pressure, creatinine, and aortic IMT (p = 0.005). Neither IMT nor plaques were predictors of aortic stiffness. Moreover, normotensive patients, those without aortic plaques, and non-smokers had higher stiffness than controls (all p < 0.05). Age at SLE diagnosis and non-neurologic damage score were the only SLE-specific independent predictors of aortic stiffness (both p ≤ 0.01). Thus, increased aortic stiffness is an early manifestation of lupus vasculopathy that seems to precede the development of hypertension and atherosclerosis.
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