Risk assessment for aortic dissection in Turner syndrome: The role of the aortic growth rate

Author:

Calanchini Matilde12ORCID,Bradley‐Watson James3,McMillan Fiona4,Myerson Saul4,Fabbri Andrea2,Turner Helen E.1,Orchard Elizabeth3

Affiliation:

1. Oxford Centre for Diabetes, Endocrinology and Metabolism Oxford University Hospitals NHS Trust Oxford UK

2. Department of Systems Medicine, Endocrinology & Metabolism Unit University of Rome Tor Vergata Rome Italy

3. ACHD Cardiology Oxford University Hospitals NHS Trust Oxford UK

4. Division of Cardiovascular Medicine, Radcliffe Department of Medicine, Centre for Clinical Magnetic Resonance Research University of Oxford Oxford UK

Abstract

AbstractObjectiveThe risk of aortic dissection (AoD) is increased in Turner syndrome (TS) but predicting those at risk is difficult. Based on scarce evidence, preventive aortic surgery is recommended when aortic diameter increases >5 mm/year. To investigate the aortic growth rate in TS and TS‐related conditions associated with aortic growth. We also reported our experience of women who suffered aortic dissection (AoD), and who had preventive aortic replacement.Methods151 adult TS were retrospectively identified. Women who had more than one transthoracic echocardiogram (TTE) after age 16 years were included in the aortic growth study. Aortic diameters at sinuses of Valsalva (SoV) and ascending aorta (AA) were analysed by two experts.Results70/151 women had more than one TTE (interscan interval 4.7 years). Mean aortic growth was 0.13 ± 0.59 mm/year at SoV and 0.23 ± 0.82 mm/year at AA. Known risk factors for aortic dilatation and TS‐related conditions were not associated with aortic growth. 4/151 women experienced AoD (age 25±8 years): two had paired scans for aortic growth, which was 0.67 mm/year at both SoV and AA in the first woman, and 11 mm/year (SoV) and 4 mm/year (AA) in the second. Only 1/4 of women with AoD survived; she used a TS cardiac‐alert card to inform emergency personnel about her risk of AoD. 5/151 had a preventive aortic replacement, but one died post‐operatively.ConclusionsMean aortic growth in our TS population was increased compared to non‐TS women and was not associated with currently known risk factors for AoD, suggesting that aortic growth rate itself could be a useful variable to stratify who is at risk for AoD.

Publisher

Wiley

Subject

Endocrinology, Diabetes and Metabolism,Endocrinology

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