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Title

Sex, body mass index, and blood pressure are related to aortic characteristics in healthy, young adults using magnetic resonance vessel wall imaging: the AMBITYON study.

Authors

Eikendal, Anouk L. M.; den Ruijter, Hester M.; Haaring, Cees; Saam, Tobias; van der Geest, Rob J.; Westenberg, Jos J. M.; Bots, Michiel L.; Hoefer, Imo E.; Leiner, Tim

Abstract

Objectives: More detailed evaluation of atherosclerosis and its key determinants in young individuals is warranted to improve knowledge on the pathophysiology of its development and progression. This study evaluated associations of magnetic resonance imaging (MRI)-derived aortic wall area, wall thickness, and pulse wave velocity (PWV) with cardiovascular risk factors in asymptomatic, young adults.Materials and methods: In 124 adults (age: 25–35 years) from the general population-based Atherosclerosis Monitoring and Biomarker Measurements in the Young study, demography, anthropometry, and blood samples were collected. The studied MRI-parameters were measured using a 3.0T MRI system. Relations between cardiovascular risk factors and aortic characteristics were assessed using multivariable linear regression analyses.Results: Mean age was 31.8 years, 47.6% was male. Aortic wall area was positively associated with age [<italic>β</italic> = 0.01, (95% confidence interval (CI) 2.00 × 10−3, 0.02), <italic>p</italic> = 0.01] and BMI [<italic>β</italic> = 0.01, (0.01, 0.02), <italic>p</italic> = 0.003] and negatively associated with sex (reference: men) [<italic>β</italic> = −0.06, (−0.11, −0.01), <italic>p</italic> = 0.02]. Natural logarithm transformed (ln) aortic wall thickness was positively associated with BMI [<italic>β</italic> = 0.01, (1.00 × 10−3, 0.02), <italic>p</italic> = 0.02]. Ln aortic PWV was positively associated with 10 mmHg increment of SBP [<italic>β</italic> = 0.06, (0.03, 0.09), <italic>p</italic> < 0.001] and DBP [<italic>β</italic> = 0.06, (0.02, 0.09), <italic>p</italic> = 0.006]. No relations were observed for smoking and lipids.Conclusions: Already in early adulthood, aortic wall geometry and stiffness vary by age, sex, BMI, and blood pressure.

Subjects

ATHEROSCLEROSIS risk factors; DISEASES in young adults; CARDIAC magnetic resonance imaging

Publication

MAGMA: Magnetic Resonance Materials in Physics, Biology & Medicine, 2018, Vol 31, Issue 1, p173

ISSN

0968-5243

Publication type

Academic Journal

DOI

10.1007/s10334-017-0626-z

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