Maternal oxygen inhalation affects the fetal hemodynamic in low-risk with uncomplicated late pregnancy

Table 2 Prenatal Doppler flow index (N = 104)

Variables	Non-oxygen inhalation group (n = 56)	Oxygen inhalation group (n = 48)	p-value
Variables	Value	Value	p-value
MCA
PI	1.90 ± 0.53	1.76 ± 0.43	0.156
RI	0.83 ± 0.16	0.80 ± 0.08	0.191
UA
PI	0.85 ± 0.16	0.91 ± 0.15	0.070
RI	0.57 ± 0.07	0.60 ± 0.06	0.074
Ut A_avg
PI	0.67 ± 0.13	0.71 ± 0.17	0.166
RI	0.45 ± 0.06	0.47 ± 0.07	0.188
DAo
PI	1.87 ± 0.39	1.86 ± 0.39	0.960
RI	0.82 ± 0.06	0.81 ± 0.06	0.665
PPI	0.76 ± 0.11	0.81 ± 0.12	0.035
CPR	2.28 ± 0.70	1.98 ± 0.56	0.017
DV
PIV	0.42 ± 0.17	0.44 ± 0.21	0.715
S/a	1.65 ± 0.40	1.73 ± 0.74	0.904
UV
Circ (mm)	25.68 ± 5.78	24.67 ± 4.70	0.845
Area (mm²)	49.06 ± 18.20	48.10 ± 16.90	0.850
UVBF_adj (ml/min/kg)	107.70 ± 29.38	104.80 ± 27.88	0.835

MCA: Middle cerebral artery, UA: Umbilical artery, Ut A_avg: Mean of the left and right maternal uterine artery, DAo: Descending aorta, DV: Ductus venosus, UV: Umbilical vein, PI: Pulsatility index, RI: Resistance index, PPI: placental pulsatility index, CPR: cerebroplacental ratio, PIV: pulsatility index for veins (PIV), S/a: Peak velocity of systole to Peak velocity of atrial contraction ratio, and UVBF_adj: Estimated fetal weight adjusted- umbilical vein blood flow

ISSN: 2047-783X