Observational studyScientific reports2022
Optimal duration of cardiotocography assessment using the iPREFACE score to predict fetal acidemia.
Observational study in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 7 citations in OpenAlex.
- Validation of the discriminatory performance of the iPREFACE score for clinically significant fetal acidemia: an outcome-enriched nested case-control study.AJOG global reports · 2026Article
- A Single-Center Retrospective Cohort Study of Risk Factors for Obstetric Anal Sphincter Injury at a Tertiary Hospital in Japan.The journal of obstetrics and gynaecology research · 2026Article
- Early identification of umbilical blood flow restriction and maternal placental hypoperfusion with photoacoustic imaging.Photoacoustics · 2026Article
- Identifying High-Risk Pre-Term Pregnancies Using the Fetal Heart Rate and Machine Learning.Bioengineering (Basel, Switzerland) · 2026Article
- The iPREFACE score is useful for predicting fetal acidemia: A retrospective cohort study of 113 patients who underwent emergency cesarean section for non-reassuring fetal status during labor.AJOG global reports · 2024Article
- Contribution of proactive management of healthcare risks to the reduction of adverse events in a maternity hospital.BMJ open quality · 2024Article
- Automatic classification of fetal heart rate based on a multi-scale LSTM network.Frontiers in physiology · 2024Article
- A lightweight fetal distress-assisted diagnosis model based on a cross-channel interactive attention mechanism.Frontiers in physiology · 2023Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Cardiotocography (CTG) applicability to improve fetal outcomes remains controversial. This study aimed to determine the clinically optimal CTG assessment duration using the integrated score index to predict fetal acidemia by intrapartum fetal heart rate monitoring (iPREFACE score). This single-center, retrospective observational study included 325 normal full-term singleton vaginal deliveries at the Toho University Omori Medical Center, from September 2018 to March 2019. The iPREFACE(10), iPREFACE(30), and iPREFACE(60) scores were calculated at 10, 30, and 60 min immediately before delivery. The primary outcome was fetal acidemia (umbilical artery blood pH < 7.2). The secondary outcome was the correlation between all iPREFACE scores and the umbilical artery blood pH, base excess (BE), and lactate values. Patients without accurate CTG findings or with failure of umbilical artery blood sampling immediately after birth were excluded, leaving 145 patients in the final analysis. Of these, 16, three, and two had umbilical artery blood pH of < 7.2, < 7.1, and < 7.0, respectively. All iPREFACE scores significantly correlated with umbilical artery blood pH, BE, and lactate values. iPREFACE(30) had the highest predictive capacity for fetal acidemia, suggesting that 30 min immediately before delivery may be a useful scoring time in clinical practice.
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