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Aortic stiffness assessed by blood pressure and echocardiography in young and normotensive patients with isolated aortic coarctation versus those with aortic coarctation and ventricular septal defect

Published online by Cambridge University Press:  26 March 2025

Sophie Duignan
Affiliation:
Children’s Health Ireland at Crumlin, Dublin, Ireland
Michaela Pentony
Affiliation:
Children’s Health Ireland at Crumlin, Dublin, Ireland
Kevin Patrick Walsh
Affiliation:
Children’s Health Ireland at Crumlin, Dublin, Ireland National Adult Congenital Heart Disease Service, Mater Misericordiae University Hospital, Dublin, Ireland School of Medicine, University College of Dublin, Dublin, Ireland
Colin Joseph McMahon
Affiliation:
Children’s Health Ireland at Crumlin, Dublin, Ireland School of Medicine, University College of Dublin, Dublin, Ireland
Pier Paolo Bassareo*
Affiliation:
Children’s Health Ireland at Crumlin, Dublin, Ireland National Adult Congenital Heart Disease Service, Mater Misericordiae University Hospital, Dublin, Ireland School of Medicine, University College of Dublin, Dublin, Ireland
*
Corresponding author: Pier Paolo Bassareo; Email: [email protected]

Abstract

Background:

Aortic coarctation can occur isolated or associated with ventricular septal defect. This study evaluated aortic stiffness in normotensive patients surgically treated for aortic coarctation and ventricular septal defect and in those who underwent simple aortic coarctation repair. Both groups were compared with healthy controls. Again, the two pathological groups were compared with each other regarding aortic stiffness and left ventricular diastolic function. A possible relationship between aortic stiffness and left ventricular diastolic function was investigated.

Methods:

Twenty-two isolated aortic coarctation patients and 17 aortic coarctation and ventricular septal defect patients were enrolled. Aortic root distensibility and aortic stiffness index were calculated from echocardiography and blood pressure. E wave to A wave (E/A) ratio was measured from mitral valve inflow profile.

Results:

Aortic root distensibility and aortic stiffness index in simple aortic coarctation vs healthy controls: both p < 0.0001. Aortic root distensibility and aortic stiffness index in aortic coarctation/ventricular septal defect vs healthy controls: both p < 0.0001. Aortic root distensibility and aortic stiffness index were similar in the two pathological groups (both p = ns). No statistically significant difference was detected in relation to left ventricular diastolic function (p = ns). No correlation was detected between aortic stiffness and diastolic function in simple aortic coarctation and aortic coarctation/ventricular septal defect groups (both p = ns).

Conclusions:

In both normotensive isolated aortic coarctation and aortic coarctation/ventricular septal defects subgroups, aortic stiffness is increased in a similar way in comparison with controls. Diastolic function was normal and similar in both groups. Aortic stiffness was not related to left ventricular diastolic function in this specific setting.

Type
Original Article
Copyright
© The Author(s), 2025. Published by Cambridge University Press

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