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Aortic Diameters and Mild Functional Aortic Regurgitation in Hypertensive and Normotensive People: Do They Carry the Same Meaning?
Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine 2018 September
OBJECTIVES: The association between the aortic root diameter and aortic regurgitation in hypertensive and normotensive people is still disputed, and the underlying mechanisms remain to be clearly elucidated. We aimed to investigate the relationship between the aortic root diameter and trivial to mild functional aortic regurgitation in never-treated hypertensive patients with a new diagnosis compared with healthy normotensive participants.
METHODS: A total of 182 hypertensives and 232 age-matched normotensives were included in the study. Anthropometric and office blood pressure (BP) measurements, echocardiography, and a carotid stiffness assessment were performed in all of the participants. Aortic measures for the annulus, sinuses of Valsalva, sinotubular junction, and ascending aorta were taken in late diastole according to the leading-edge method.
RESULTS: The mean age of all participants was 52 years. Hypertensive patients had a significantly higher body surface area, mean arterial pressure, and pulse pressure (P < .0001) than normotensive participants. Annulus and sinotubular junction diameters adjusted for confounders and indexed to the body surface area were significantly higher in normotensives than in hypertensives. The prevalence of functional aortic regurgitation was higher in hypertensives (34.8% versus 15.4%; P < .0001). Among the hypertensives, no difference in aortic diameters was found between patients with or without functional aortic regurgitation, whereas normotensives with functional aortic regurgitation had larger aortic root diameters. Aging and BP among the hypertensives were the main determinants of functional aortic regurgitation.
CONCLUSIONS: Hypertensive patients had a smaller indexed aortic root diameter than normotensive participants but had a higher prevalence of trivial to mild functional aortic regurgitation. The aging process is the main determinant of functional aortic regurgitation in both groups, but high BP also plays an important role in hypertensives.
METHODS: A total of 182 hypertensives and 232 age-matched normotensives were included in the study. Anthropometric and office blood pressure (BP) measurements, echocardiography, and a carotid stiffness assessment were performed in all of the participants. Aortic measures for the annulus, sinuses of Valsalva, sinotubular junction, and ascending aorta were taken in late diastole according to the leading-edge method.
RESULTS: The mean age of all participants was 52 years. Hypertensive patients had a significantly higher body surface area, mean arterial pressure, and pulse pressure (P < .0001) than normotensive participants. Annulus and sinotubular junction diameters adjusted for confounders and indexed to the body surface area were significantly higher in normotensives than in hypertensives. The prevalence of functional aortic regurgitation was higher in hypertensives (34.8% versus 15.4%; P < .0001). Among the hypertensives, no difference in aortic diameters was found between patients with or without functional aortic regurgitation, whereas normotensives with functional aortic regurgitation had larger aortic root diameters. Aging and BP among the hypertensives were the main determinants of functional aortic regurgitation.
CONCLUSIONS: Hypertensive patients had a smaller indexed aortic root diameter than normotensive participants but had a higher prevalence of trivial to mild functional aortic regurgitation. The aging process is the main determinant of functional aortic regurgitation in both groups, but high BP also plays an important role in hypertensives.
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