Optimal oxygen levels in pregnant mothers undergoing mechanical ventilation are not known. This study examined the effects of four maternal oxygenation ranges on fetal hemodynamics and oxygenation in ...
Abnormal fetal heart rate: repeated detection of a fetal heart rate ≥ 160 beats/min or ≤ 120 beats/min; Apgar score < 7 at 1 min and 5 min after delivery or birth weight < 2500 g. Possessing at least ...