ArticleInternational journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics2019
Effects of low maternal heart rate on fetal growth and birthweight.
Article in International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed.
- Association of maternal nocturnal heart rate and adverse pregnancy outcomes.Pregnancy (Hoboken, N.J.) · 2025Article
- Article
- Mitigating Health-Related Uncertainties During Pregnancy: The Role of Smart Health Monitoring Technologies.Journal of medical Internet research · 2024Article
- A deep learning framework for noninvasive fetal ECG signal extraction.Frontiers in physiology · 2024Article
- Prediction of fetal RR intervals from maternal factors using machine learning models.Scientific reports · 2023Article
- Heart Rate Variability and Pregnancy Complications: Systematic Review.Interactive journal of medical research · 2023Review
- Birth, love, and fear: Physiological networks from pregnancy to parenthood.Comprehensive psychoneuroendocrinology · 2022Review
- Maternal Low Volume Circulation Relates to Normotensive and Preeclamptic Fetal Growth Restriction.Frontiers in medicine · 2022Review
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
objectiveTo evaluate the association between birthweight and maternal heart rate (MHR) or heart rate variability (HRV) under resting conditions at 20-24 gestational weeks and 34 weeks or later (34+ weeks).
methodsData were retrospectively reviewed from the Safe Passage Study, a prospective longitudinal cohort study of alcohol use in pregnancy and birth outcomes in Cape Town, South Africa, between August 2007 and January 2015. Using custom-designed software, MHR and indicators of HRV were obtained from the recorded maternal electrocardiograms and compared with birthweight and z-scores of birthweight adjusted for gestation and gender.
resultsData from 5655 women were included. MHR increased from 84.6 bpm at 20-24 weeks to 88.3 bpm at 34+ weeks. Increasing MHR from 70-80 to 80-90 and 90-100 bpm at 20-24 weeks was associated with increasing birthweight from 2940 to 2998 and 3032 g, respectively (P<0.05). MHR and HRV contributed 29% to the variability associated with birthweight, whereas maternal body mass index at recruitment contributed 44%. Similar associations were observed for MHR at 34+ weeks.
conclusionThe observed association of low maternal heart rate with birthweight might help to identify pregnancies at risk of poor fetal growth.
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