Key result
Short-term-variation of fetal heart rate did not significantly predict fetal acidaemia at birth, yielding an area under the ROC curve of 0.527.
Why the study?
Continuous intrapartum fetal monitoring is challenging and its clinical benefits are debated, prompting evaluation of computerized fetal heart rate parameters to predict acidaemia at birth and assess feasibility of a definitive trial.
Does short-term variation of fetal heart rate predict fetal acidaemia in labour?
Observational (n=200)
Clinicians blinded to computerized FHR parameters
No
Does short-term variation of fetal heart rate predict fetal acidaemia in labour?
Effect estimate: AUC 0.527 (95% CI 0.377-0.678)
p-value: p=0.732
In a feasibility study limited by high data loss, computerized short-term variation of the fetal heart rate did not reliably predict fetal acidaemia at birth.
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Findings do not support relying on short-term variation to predict acidaemia; leaves open validation of refined metrics in larger prospective cohorts.
Kapaya et al. (2020) conducted an observational in Fetal acidaemia in high-risk labour (n=200). Short-term-variation (STV) of fetal heart rate vs. Non-acidaemic fetuses (cord pH ≥ 7.20) was evaluated on Prediction of umbilical arterial blood pH < 7.20 (fetal acidaemia) (AUC 0.527, 95% CI 0.377-0.678, p=0.732). Short-term-variation of fetal heart rate did not significantly predict fetal acidaemia at birth, yielding an area under the ROC curve of 0.527.
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