Key result
In normal term neonates, hyperkinesis of the interventricular septum was observed at 2 hours after birth and disappeared by 120 hours, reflecting characteristic early neonatal circulatory changes.
Population
Normal neonates
Design
Cohort
Follow-up
120 hours
Authors
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Recognizing transient septal hyperkinesis as physiologic may avoid unnecessary evaluation in term neonates; extends characterization of transitional circulation.
Observational (n=17)
No
Hyperkinesis of the interventricular septum at 2 hours after birth in normal neonates likely reflects early neonatal circulatory changes, including pulmonary hypertension and ductal patency, which resolve by 120 hours.
Harada et al. (1995) conducted an observational in Normal term neonates (n=17). Time after birth (2 hours) vs. 120 hours after birth was evaluated on Regional wall motion of the left ventricle (shortening fraction). In normal term neonates, hyperkinesis of the interventricular septum was observed at 2 hours after birth and disappeared by 120 hours, reflecting characteristic early neonatal circulatory changes.
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