Main findings
In this longitudinal study we demonstrated that first, fetuses of mothers with GDM, compared to controls, had more globular hearts and reduced biventricular systolic function; second, diastolic and systolic ventricular function remained reduced beyond the neonatal period; and third, these associations were not modified by maternal diabetic treatment. These findings suggest that maternal GDM may have prolonged adverse influence on the cardiovascular health of the offspring.