Abstract:
BACKGROUND:Coarctation of the Aorta (CoA) is associated with increased aortic stiffness and diastolic left ventricular dysfunction. The mechanisms involved and impact of age remain unclear. It was the aim of this study to characterize arterial and cardiac function, their correlation, and the effect of age in children and adults with repaired CoA. METHODS:Multimodal cardiovascular assessment from the ascending aorta to microcirculation and endothelial function was performed prospectively. Statistical analyses included multivariable linear regression and correlation of vascular parameters with age and diastolic function. RESULTS:Fifty-seven patients with well-repaired CoA and 77 healthy controls were included (age 8-59). There was no significant difference in age, gender, body surface area and BMI between the groups. Ascending aortic distensibility was decreased while common carotid intima media thickness, central augmentation index corrected to a heart rate of 75/min [Aix75], peripheral Aix75 and aging index were increased in the CoA group. Interestingly, in a subgroup analysis of CoA patients with tricuspid vs. bicuspid aortic valves (BAV), only the latter had increased Aix75. Carotid-femoral pulse wave velocity [cfPWV], reactive hyperemia index and microcirculation were not significantly different between CoA and control patients. Diastolic function was impaired in the CoA group relative to controls. Both diastolic function and age correlated moderate-strongly with arterial parameters. CONCLUSIONS:Patients with well repaired CoA have increased proximal arterial stiffness which correlates with diastolic function and age. Increased Aix75 may be attributed to a high prevalence of associated BAV. Neither cfPWV nor peripheral endothelial or microcirculatory function are impaired.
journal_name
Int J Cardioljournal_title
International journal of cardiologyauthors
Weismann CG,Maretic A,Grell BS,Åkesson A,Hlebowicz J,Liuba Pdoi
10.1016/j.ijcard.2020.08.095subject
Has Abstractpub_date
2021-01-15 00:00:00pages
47-53eissn
0167-5273issn
1874-1754pii
S0167-5273(20)33722-0journal_volume
323pub_type
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