Abstract：
:Vasculopathy has been identified in young individuals with Turner syndrome (TS). No studies in young individuals with TS have investigated whether this vasculopathy progresses over time. The objective of this study is to describe the changes in vasculopathy over time in a cohort of young individuals with TS. Repeat ultrasound and SphygmoCor CPV® (AtCor Medical) measurements of carotid thickness and peripheral arterial stiffness were performed. Vascular measurements were compared at baseline and follow-up. Follow-up measurements were also compared to historical lean (L) and obese (O) age-, race-, and sex-matched non-TS controls. Thirty-five individuals with TS were studied at a mean age of 19.4 years (range, 13.9-27.5). Mean time to follow-up was 7.2 years (range, 7.1-7.8). Carotid intima media thickness increased by 0.03 ± 0.07 mm (p < 0.01) over time, but was less than L and O controls at follow-up. Pulse wave velocity carotid-femoral increased by 0.51 ± 0.86 m/s (p < 0.01) over time, but was similar to L and less than O controls at follow-up. Augmentation index (AIx) remained unchanged (p = 0.09) over time, but was significantly higher at follow-up than both control groups (p < 0.01 for both). There were no identified differences between 45,X and other TS genotypes. We demonstrate evidence of vascular thickening and stiffening over 7 years in a cohort of young individuals with TS, as well as a persistently increased augmentation index compared to L and O non-TS controls. It is unclear whether the increase in vascular structure and function are related to normal aging or if TS is a risk factor. Higher body mass index seems to be a risk factor. Early estrogen replacement and longer exposure to growth hormone therapy need to be further explored as potential protective factors.
journal_name
Pediatr Cardioljournal_title
Pediatric cardiologyauthors
Blunden CE,Urbina EM,Lawson SA,Gutmark-Little I,Shah AS,Khoury PR,Backeljauw PFdoi
10.1007/s00246-020-02505-wsubject
Has Abstractpub_date
2020-11-26 00:00:00eissn
0172-0643issn
1432-1971pii
10.1007/s00246-020-02505-wpub_type
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