Table 3.

Reference ranges for speckle tracking echocardiography deformation parameters in the neonatal population

Values presented as means and standard deviations if available, unless stated otherwise. All strain units are % and strain rate 1/s

Gest gestation, N number of infants, Wt birthweight, Wks weeks, LV left ventricle, RV right ventricle, Sep septum, PMA post-menstrual age, Circ circumferential, LS longitudinal strain, SRs systolic strain rate, SRe early diastolic strain rate, SRa late diastolic strain rate