Neonatal and infant cardiac findings:
Clinical characteristics of groups at the postnatal period are noted in
the Table 3. Neonates were similar for demografic features. IVSd and
LVPWd values remained higher on postnatal first and follow-up echoes.
Both LV mass and LV mass index calculated significantly higher on COVID
group (p <0.001). E/A ratio of mitral and tricuspid and
Em/Am ratios of both segments of first
and follow-up echoes were significantly lower, IVRT
of both segments
were significantly higher of all periods as an indicator of diastolic
dysfunction similar to fetal period (Table 4,5). However, mitral
E/Em values of both postnatal echoes were not differed
statistically but tricuspid E/Em value of follow-up echo
remained statistically higher in COVID group (p <0.01).
On the infant period, MAPSE, TAPSE values do not differ significantly
but LVEF (p< 0.01), LVSF (p <0.001), ET
of septum (p =0.031) and RV lateral wall (p <0.01)
were measured significantly lower and IVCT of RV is higher on COVID
group as an indicator for systolic dysfunction (Table 4,5). MPI of both
segments were significantly higher on postnatal first and second echoes.
Correlation analysis of mitral and tricuspid E and Emvalues for postnatal second echo in the COVID-19 group showed a strong
correlation of mitral E and LV MPI (Rho=,609; p <0.001).
There is a moderate positive correlation between tricuspid E and LVEDD
(Rho=,398; p =0.016), a strong positive correlation between
tricuspid E and LV mass (Rho=,586; p <0.001), moderate
positive correlation between tricuspid E and LVMi (Rho=,403;p =0.015).