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Longitudinal echocardiography in pediatric patients with hypermobile Ehlers-Danlos syndrome.

Vascular Ehlers-Danlos, Marfan and Loeys-Dietz syndromes have increased risk of aortic dilation and dissection. Previous early studies showed hypermobile Ehlers-Danlos syndrome (hEDS) may also have increased risk, with echocardiography screening recommended; subsequent studies have not confirmed the risk or recommended echocardiography. This pediatric-based study assessed aortic dilation prevalence in those with hEDS by serial echocardiographic examinations and assessed family history for aortic dissections. We retrospectively identified individuals with hEDS who had echocardiography studies from the electronic medical records at one pediatric center. Aortic root Z-scores >2.0 were found in 15/225 subjects (average age 12.9 years) on initial echocardiograms, with no Z-score >3.0. Subsequent studies (n = 68) found statistically significant decline in aortic root Z-scores. Repeat echocardiography in those with initial aortic root Z-score >2.0 (n = 10) demonstrated a decline in Z score <2.0 in seven. On final examination, 9/225 (4.0%) had a Z-score >2.0, not statistically different from the general population. No aortic dissection occurred in first- or second-degree relatives. In conclusion, aortic root dilation rate in hEDS is likely not different from the general population. We propose that in the absence of other cardiac findings or suspicion for another disorder, echocardiography is not required in hEDS.

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