Aortic dilation and growth in women with Turner syndrome

Frederike Meccanici, Mathilda H. Schotte, Miranda Snoeren, Lidia R. Bons, Allard T. Van Den Hoven, Isabella Kardys, Ricardo P.J. Budde, Annemien E. Van Den Bosch, Anthonie L. Duijnhouwer, Jolien W. Roos-Hesselink*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Web of Science)

Abstract

Objective Women with Turner syndrome (TS) are at increased risk of aortic dissection, which is a life-threatening event associated with aortic dilation. Knowledge on the development of aortic dilation over time remains limited. This study aims to describe the prevalence of aortic dilation, to find associated factors and to study aortic growth in women with TS. Methods In this prospective multicentre cohort study, consecutive adult women with genetically proven TS included between 2014 and 2016 underwent ECG-triggered multiphase CT angiography at baseline and after 3 years. Aortic diameters were measured at seven levels of the thoracic aorta using double oblique reconstruction and indexed for body surface area. Ascending aortic dilation was defined as an aortic size index >20 mm/m 2. Aorta-related and cardiovascular events were collected. Statistical analysis included linear and logistic regression and linear mixed effects models. Results The cohort consisted of 89 women with a median age of 34 years (IQR: 24-44). Ascending aortic dilation was found in 38.2% at baseline. At baseline, age (OR: 1.08 (95% CI 1.03 to 1.13), p<0.001), presence of bicuspid aortic valve (BAV) (OR: 7.09 (95% CI 2.22 to 25.9), p=0.002) and systolic blood pressure (OR: 1.06 (95% CI 1.02 to 1.11), p=0.004) were independently associated with ascending aortic dilation. During a median follow-up of 3.0 (2.4-3.6) years (n=77), significant aortic growth was found only at the sinotubular junction (0.20±1.92 mm, p=0.021). No aortic dissection occurred, one patient underwent aortic surgery and one woman died. Conclusions In women with TS, ascending aortic dilation is common and associated with age, BAV and systolic blood pressure. Aortic diameters were stable during a 3-year follow-up, apart from a significant yet not clinically relevant increase at the sinotubular junction, which may suggest a more benign course of progression than previously reported.

Original languageEnglish
Pages (from-to)102-110
Number of pages9
JournalHeart
Volume109
Issue number2
Early online date22 Dec 2022
DOIs
Publication statusPublished - Jan 2023

Bibliographical note

Funding Information:
Funding This research was supported by the Dutch Heart Foundation (contract grant number: 2013T093).

Publisher Copyright:
© 2023 Author(s). Published by BMJ.

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