title: Planned caesarean section versus planned vaginal birth for breech presentation at term: a randomised multicentre trial. Term Breech Trial Collaborative Group.
abstract: BACKGROUND
  For 3-4% of pregnancies, the fetus will be in the breech presentation at term. For most of these women, the approach to delivery is controversial. We did a randomised trial to compare a policy of planned caesarean section with a policy of planned vaginal birth for selected breech-presentation pregnancies.
  
  
  METHODS
  At 121 centres in 26 countries, 2088 women with a singleton fetus in a frank or complete breech presentation were randomly assigned planned caesarean section or planned vaginal birth. Women having a vaginal breech delivery had an experienced clinician at the birth. Mothers and infants were followed-up to 6 weeks post partum. The primary outcomes were perinatal mortality, neonatal mortality, or serious neonatal morbidity; and maternal mortality or serious maternal morbidity. Analysis was by intention to treat.
  
  
  RESULTS
  Data were received for 2083 women. Of the 1041 women assigned planned caesarean section, 941 (90.4%) were delivered by caesarean section. Of the 1042 women assigned planned vaginal birth, 591 (56.7%) delivered vaginally. Perinatal mortality, neonatal mortality, or serious neonatal morbidity was significantly lower for the planned caesarean section group than for the planned vaginal birth group (17 of 1039 [1.6%] vs 52 of 1039 [5.0%]; relative risk 0.33 [95% CI 0.19-0.56]; p<0.0001). There were no differences between groups in terms of maternal mortality or serious maternal morbidity (41 of 1041 [3.9%] vs 33 of 1042 [3.2%]; 1.24 [0.79-1.95]; p=0.35).
  
  
  CONCLUSIONS
  Planned caesarean section is better than planned vaginal birth for the term fetus in the breech presentation; serious maternal complications are similar between the groups.
authors.affiliation: Department of Obstetrics and Gynaecology, Sunnybrook and Women's College Health Sciences Centre, Toronto, Ontario, Canada. mary.hannah@utoronto.ca
authors.forename: M E
authors.initials: ME
authors.lastname: Hannah
authors.forename: W J
authors.initials: WJ
authors.lastname: Hannah
authors.forename: S A
authors.initials: SA
authors.lastname: Hewson
authors.forename: E D
authors.initials: ED
authors.lastname: Hodnett
authors.forename: S
authors.initials: S
authors.lastname: Saigal
authors.forename: A R
authors.initials: AR
authors.lastname: Willan
mesh_terms: D000328:Adult; D001946:Breech Presentation; D002585:Cesarean Section; D005260:Female; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D008423:Maternal Age; D008428:Maternal Mortality; D010298:Parity; D011247:Pregnancy; D011256:Pregnancy Outcome