Abstract
The effects of maternal intravenous glucose administration (25 gm) on maternal heart rate, fetal heart rate, gross fetal body movements, and fetal heart rate accelerations was measured in 11 healthy pregnant women at 38 to 40 weeks' gestational age. Mean maternal heart rate increased from 78.3 ± 0.8 bpm during the control period to 82.7 ± 0.5 bpm at 30 to 85 minutes following glucose injections (p < 0.01). Mean fetal heart rate rose from 137.8 ± 0.4 bpm to 142.4 ± 0.3 bpm at 50 to 95 minutes following injections (p < 0.001). The incidence of gross fetal body movements and the number, duration, and amplitude of fetal heart rate accelerations did not change following glucose injection. We conclude that maternal glucose administration near term results in a small but significant increase in the mean maternal heart rate and fetal heart rate and no change in the incidence of gross fetal body movements or in fetal heart rate accelerations.
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