Preterm birth can result in impaired development of lung airways and vasculature, but the long term implications are unclear. With this in mind, we performed 4D flow imaging in the aorta and pulmonary artery during exercise at 70% maximal power in both children and adults who had been born prematurely to identify any differences in flow characteristics relative to healthy controls. Although no statistically significant differences were identified between our groups, some preterm cohorts showed increased cardiac output and mean velocity. The significance of these trends should become apparent as we continue to recruit subjects and increase our statistical power.
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