Trial reportBJOG : an international journal of obstetrics and gynaecology2011
The Early External Cephalic Version (ECV) 2 Trial: an international multicentre randomised controlled trial of timing of ECV for breech pregnancies.
Trial report in BJOG : an international journal of obstetrics and gynaecology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
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.
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, 1 synthesis or guideline pooled it.
- External cephalic version for breech presentation before term.The Cochrane database of systematic reviews · 2015Pooled it
- Trial
- Moxibustion for cephalic version: a feasibility randomised controlled trial.BMC complementary and alternative medicine · 2011Trial
- Prioritisation and design of clinical trials.European journal of epidemiology · 2021Article
- External cephalic version at 38 weeks' gestation at a specialized German single center.PloS one · 2021Article
- Evaluation of the learning curve for external cephalic version using cumulative sum analysis.Obstetrics & gynecology science · 2017Article
- This baby is not for turning: Women's experiences of attempted external cephalic version.BMC pregnancy and childbirth · 2016Article
- Effects of Passive Hydrotherapy WATSU (WaterShiatsu) in the Third Trimester of Pregnancy: Results of a Controlled Pilot Study.Evidence-based complementary and alternative medicine : eCAM · 2015Article
- Fear for external cephalic version and depression: predictors of successful external cephalic version for breech presentation at term?BMC pregnancy and childbirth · 2014Observational
- Improving external cephalic version for foetal breech presentation.Facts, views & vision in ObGyn · 2013Review
- The Effects of Clinical Hypnosis versus Neurolinguistic Programming (NLP) before External Cephalic Version (ECV): A Prospective Off-Centre Randomised, Double-Blind, Controlled Trial.Evidence-based complementary and alternative medicine : eCAM · 2012Article
- Trends in cesarean delivery for twin births in the United States: 1995-2008.Obstetrics and gynecology · 2011Article
Corrections and comments
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Authors and funding
16 authors.
Funding
Abstract
objectiveTo investigate whether initiating external cephalic version (ECV) earlier in pregnancy might increase the rate of successful ECV procedures, and be more effective in decreasing the rate of non-cephalic presentation at birth and of caesarean section.
designAn unblinded multicentred randomised controlled trial.
settingA total of 1543 women were randomised from 68 centres in 21 countries. POPULATION: Women with a singleton breech fetus at a gestational age of 33(0/7) weeks (231 days) to 35(6/7) weeks (251 days) of gestation were included.
methodsParticipants were randomly assigned to having a first ECV procedure between the gestational ages of 34(0/7) (238 days) and 35(6/7) weeks of gestation (early ECV group) or at or after 37(0/7) (259 days) weeks of gestation (delayed ECV group).
main outcome measuresThe primary outcome was the rate of caesarean section; the secondary outcome was the rate of preterm birth.
resultsFewer fetuses were in a non-cephalic presentation at birth in the early ECV group (314/765 [41.1%] versus 377/768 [49.1%] in the delayed ECV group; relative risk [RR] 0.84, 95% CI 0.75, 0.94, P=0.002). There were no differences in rates of caesarean section (398/765 [52.0%] versus 430/768 [56.0%]; RR 0.93, 95% CI 0.85, 1.02, P=0.12) or in risk of preterm birth (50/765 [6.5%] versus 34/768 [4.4%]; RR 1.48, 95% CI 0.97, 2.26, P=0.07) between groups.
conclusionExternal cephalic version at 34-35 weeks versus 37 or more weeks of gestation increases the likelihood of cephalic presentation at birth but does not reduce the rate of caesarean section and may increase the rate of preterm birth.
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