SynthesisThe Cochrane database of systematic reviews2010
Alternative positions for the baby at birth before clamping the umbilical cord.
Synthesis in The Cochrane database of systematic reviews, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Enhanced recovery after elective caesarean: a rapid review of clinical protocols, and an umbrella review of systematic reviews.BMC pregnancy and childbirth · 2017Pooled it
- Effect of timing of umbilical cord clamping of term infants on maternal and neonatal outcomes.The Cochrane database of systematic reviews · 2013Pooled it
- Effect of umbilical cord milking versus delayed cord clamping on preterm neonates in Kenya: A randomized controlled trial.PloS one · 2021Trial
- Trial
- Timing of umbilical cord clamping and its predictors among neonates in Northeast Ethiopia: a multicenter prospective observational study.Maternal health, neonatology and perinatology · 2026Article
- Deferred cord clamping in twin pregnancies: benefit, risk, or missed opportunity? A narrative review.Resuscitation plus · 2026Review
- Impact of maternal posture on fetal physiology in human pregnancy: a narrative review.Frontiers in physiology · 2024Review
- A review on development of placental transfusion in term and preterm infants.Frontiers in pediatrics · 2022Review
- Effect of early versus delayed cord clamping in neonate on heart rate, breathing and oxygen saturation during first 10 minutes of birth - randomized clinical trial.Maternal health, neonatology and perinatology · 2019Article
- Milking of the Umbilical Cord in Term and Late Preterm Infants.BioMed research international · 2019Review
- The effects of umblical cord clamping time on lymphocyte subgroups in term and late preterm infants.Turk pediatri arsivi · 2018Article
- Association between oxidative stress and cord serum lipids in relation to delayed cord clamping in term neonates.Lipids in health and disease · 2017Observational
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe third stage of labour is from birth of the baby until delivery of the placenta. Clamping the umbilical cord is one component of active management of the third stage. Deferring cord clamping allows blood flow between the baby and the placenta to continue; net transfer to the baby is called placental transfusion. If the cord is clamped immediately placental transfusion is restricted. Gravity is one of several factors that may influence the volume and duration of placental transfusion at both vaginal and caesarean births. Hence raising or lowering the baby whilst the cord is intact may influence placental transfusion, which in turn may affect outcome for the baby and the woman.
objectivesTo compare the effects of alternative positions for the baby between birth and cord clamping on outcome for the baby, outcome for the mother and on use of health service resources. SEARCH STRATEGY: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (July 2010). SELECTION CRITERIA: Randomised trials comparing alternative positions for the baby at vaginal and caesarean birth, before clamping of the umbilical cord. DATA COLLECTION AND ANALYSIS: We independently assessed trial eligibility and quality. When necessary, we contacted study authors for additional information. MAIN
resultsThirty-seven studies (7559 mother-infant pairs) were excluded: 33 (7296) because they did not compare alternative positions for the baby before clamping the umbilical cord and four (263) due to quasi-random allocation. No studies met the inclusion criteria. One additional trial is ongoing. AUTHORS'
conclusionsNo randomised trials have assessed the influence of gravity on placental transfusion. Large, well-designed randomised trials are needed to assess whether gravity influences placental transfusion at vaginal and caesarean births and, if so, whether this affects short-term and long-term outcome for the baby and for the mother.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.