Population
40 healthy women with an uneventful singleton pregnancy
Design
Cohort
Follow-up
14 to 40 weeks of gestation
Authors
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Low usability precludes clinical use of abdominal fetal ECG spectral analysis; leaves open HRV assessment in mid-gestation with improved processing.
Non-invasive fetal ECG can detect increases in heart rate variability spectral estimates during pregnancy, but current signal processing limitations result in low data usability.
Laar et al. (2013) studied this question.
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