Key result
M-mode echocardiography during maternal exercise provided artifact-free fetal heart rate measurements, showing no significant difference between treadmill exercise (158.0 bpm) and rest (140 bpm, P>0.05).
Why the study?
Does two-dimensional ultrasound directed M-mode echocardiography improve fetal heart rate measurement accuracy compared to Doppler ultrasound during maternal exercise?
Population
8 pregnant women
Comparison
Two-dimensional ultrasound directed M-mode… vs Doppler ultrasound fetal monitors
Design
Cross-sectional
Authors
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M-mode supports reliable fetal heart rate monitoring during maternal exercise; leaves open whether prior Doppler bradycardia reports reflect motion artifact.
Observational (n=8)
Does two-dimensional ultrasound directed M-mode echocardiography improve fetal heart rate measurement accuracy compared to Doppler ultrasound during maternal exercise?
Absolute Event Rate: 158% vs 140%
p-value: p=> 0.05
M-mode echocardiography provides artifact-free fetal heart rate monitoring during maternal exercise, suggesting that previously reported exercise-induced fetal bradycardia may be a motion artifact from Doppler monitors.
Paolone et al. (1987) conducted an observational in Pregnancy (n=8). Maternal exercise vs. Pre-exercise rest was evaluated on Fetal heart rate (FHR) (p=> 0.05). M-mode echocardiography during maternal exercise provided artifact-free fetal heart rate measurements, showing no significant difference between treadmill exercise (158.0 bpm) and rest (140 bpm, P>0.05).
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