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The association between aortic arterial stiffness, carotid intima-media thickness and carotid plaques in community-dwelling older adults: A population-based study.

Del Brutto, Oscar H; Del Brutto, Victor J; Mera, Robertino M; Costa, Aldo F; Peñaherrera, Rubén; Peñaherrera, Ernesto; Matcha, Gautam; Generale, Laura M; Torpey, Andrew P; Peralta, Leslie D; Hill, John P; Rundek, Tatjana; Romano, José G; Sedler, Mark J.
Vascular ; 28(4): 405-412, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32228175


Information on the associations among arterial stiffness, carotid intima-media thickness (cIMT) and carotid plaques as biomarkers of atherosclerosis is limited in diverse populations. We aimed to assess whether aortic pulse wave velocity (aPWV) - as a surrogate of arterial stiffness - is associated with increased cIMT and the presence of carotid plaques in a cohort of older adults of Amerindian ancestry.


Atahualpa residents aged ≥60 years (n = 320) underwent aPWV determinations, and carotid ultrasounds for cIMT and plaque assessment. Multivariate models were fitted to assess the independent association between the aPWV, and cIMT and carotid plaques, after adjusting for relevant confounders. Differences in risk factors across these biomarkers were investigated.


Mean values of aPWV were 10.3 ± 1.8 m/s, and those of cIMT were 0.91 ± 0.21 mm (24% had a cIMT >1 mm). Carotid plaques were observed in 118 (37%) subjects. In univariate analyses, risk factors associated with an increased aPWV included age, female gender, poor physical activity and high blood pressure. An increased cIMT was associated with age, male gender, a poor diet, high blood pressure and severe tooth loss. The presence of carotid plaques was associated with increasing age, poor physical activity and high blood pressure. Multivariate models showed a significant association between aPWV and cIMT (ß 0.028; 95% C.I. 0.001-0.056; p = 0.047) but not between aPWV and carotid plaques (OR 1.14; 95% C.I. 0.83-1.56; p = 0.423).


This study shows an independent association between aPWV and cIMT but not with carotid plaques. These biomarkers may indicate distinct phenotypes for atherosclerosis.