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Review
, 2015 (12), CD006553

Planned Caesarean Section for Women With a Twin Pregnancy

Affiliations
Review

Planned Caesarean Section for Women With a Twin Pregnancy

G Justus Hofmeyr et al. Cochrane Database Syst Rev.

Abstract

Background: Twin pregnancies are associated with increased perinatal mortality, mainly related to prematurity, but complications during birth may contribute to perinatal loss or morbidity. The option of planned caesarean section to avoid such complications must therefore be considered. On the other hand, randomised trials of other clinical interventions in the birth process to avoid problems related to labour and birth (planned caesarean section for breech, and continuous electronic fetal heart rate monitoring), have shown an unexpected discordance between short-term perinatal morbidity and long-term neurological outcome. The risks of caesarean section for the mother in the current and subsequent pregnancies must also be taken into account.

Objectives: To determine the short- and long-term effects on mothers and their babies, of planned caesarean section for twin pregnancy.

Search methods: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (18 November 2015) and reference lists of retrieved studies.

Selection criteria: Randomised trials comparing a policy of caesarean section with planned vaginal birth for women with twin pregnancy.

Data collection and analysis: Two review authors independently assessed eligibility, quality and extracted data. Data were checked for accuracy. For important outcomes the quality of the evidence was assessed using the GRADE approach.

Main results: We included two trials comparing planned caesarean section versus planned vaginal birth for twin pregnancies.Most of the data included in the review were from a multicentre trial where 2804 women were randomised in 106 centres in 25 countries. All centres had facilities to perform emergency caesarean section and had anaesthetic, obstetrical, and nursing staff available in the hospital at the time of planned vaginal delivery. In the second trial carried out in Israel, 60 women were randomised. We judged the risk of bias to be low for all categories except performance (high) and outcome assessment bias (unclear).There was no clear evidence of differences between women randomised to planned caesarean section or planned vaginal birth for maternal death or serious morbidity (risk ratio (RR) 0.86, 95% confidence interval (CI) 0.67 to 1.11; 2844 women; two studies; moderate quality evidence). There was no significant difference between groups for perinatal or neonatal death or serious neonatal morbidity (RR 1.15, 95% CI 0.80 to 1.67; data for 5565 babies, one study, moderate quality evidence). No studies reported childhood disability.For secondary outcomes there was no clear evidence of differences between groups for perinatal or neonatal mortality (RR 1.41, 95% CI 0.76 to 2.62; 5685 babies; two studies, moderate quality evidence), serious neonatal morbidity (RR 1.03, 95% CI 0.65 to 1.64; 5644 babies; two studies, moderate quality evidence) or any of the other neonatal outcomes reported.The number of women undergoing caesarean section was reported in both trials. Most women in the planned caesarean group had treatment as planned (90.9% underwent caesarean section), whereas in the planned vaginal birth group 42.9% had caesarean section for at least one twin. For maternal mortality; no events were reported in one trial and two deaths (one in each group) in the other. There were no significant differences between groups for serious maternal morbidity overall (RR 0.86, 95% CI 0.67 to 1.11; 2844 women; two studies) or for different types of short-term morbidity. There were no significant differences between groups for failure to breastfeed (RR 1.14, 95% CI 0.95 to 1.38; 2570 women, one study; moderate quality evidence) or the number of women with scores greater than 12 on the Edinbugh postnatal depression scale (RR 0.95, 95% CI 0.78 to 1.14; 2570 women, one study; moderate quality evidence).

Authors' conclusions: Data mainly from one large, multicentre study found no clear evidence of benefit from planned caesarean section for term twin pregnancies with leading cephalic presentation. Data on long-term infant outcomes are awaited. Women should be informed of possible risks and benefits of labour and vaginal birth pertinent to their specific clinical presentation and the current and long-term effects of caesarean section for both mother and babies. There is insufficient evidence to support the routine use of planned caesarean section for term twin pregnancy with leading cephalic presentation, except in the context of further randomised trials.

Conflict of interest statement

JF Barrett is principal investigator for Barrett 2013. He did not participate in decisions relating to that study.

Justus Hofmeyr receives royalties from UpToDate for chapters related to breech pregnancy, delivery of a baby in breech presentation and external cephalic version. UpToDate is an electronic publication by Wolters Kluwer to disseminate evidence‐based medicine (such as Cochrane reviews).

Figures

Figure 1
Figure 1
'Risk of bias' graph: review authors' judgements about each risk of bias item presented as percentages across all included studies.
Figure 2
Figure 2
'Risk of bias' summary: review authors' judgements about each risk of bias item for each included study.
Analysis 1.1
Analysis 1.1
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 1 Maternal death or serious maternal morbidity.
Analysis 1.2
Analysis 1.2
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 2 Perinatal or neonatal death or serious neonatal morbidity.
Analysis 1.4
Analysis 1.4
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 4 Perinatal or neonatal death.
Analysis 1.5
Analysis 1.5
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 5 Serious neonatal morbidity.
Analysis 1.6
Analysis 1.6
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 6 Apgar score less than eight at five minutes.
Analysis 1.7
Analysis 1.7
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 7 Apgar score less than four at five minutes.
Analysis 1.8
Analysis 1.8
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 8 Neonatal encephalopathy, as defined by trial authors.
Analysis 1.9
Analysis 1.9
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 9 Birth trauma, as defined by trial authors.
Analysis 1.10
Analysis 1.10
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 10 Nerve palsy (including brachial plexus injury).
Analysis 1.11
Analysis 1.11
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 11 Subdural or intracerebral haemorrhage.
Analysis 1.12
Analysis 1.12
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 12 Intraventricular haemorrhage: grade III or IV.
Analysis 1.13
Analysis 1.13
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 13 Cystic periventricular leukomalacia.
Analysis 1.14
Analysis 1.14
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 14 Neonatal sepsis up to 72 hours.
Analysis 1.15
Analysis 1.15
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 15 Necrotising enterocolitis.
Analysis 1.16
Analysis 1.16
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 16 Assisted ventilation for 24 hours or more.
Analysis 1.17
Analysis 1.17
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 17 Short‐term maternal outcomes: caesarean section.
Analysis 1.18
Analysis 1.18
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 18 Short‐term maternal outcomes: mortality.
Analysis 1.19
Analysis 1.19
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 19 Short‐term maternal outcomes: serious maternal morbidity.
Analysis 1.20
Analysis 1.20
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 20 Short‐term maternal outcomes: thromboembolism requiring anticoagulant therapy.
Analysis 1.21
Analysis 1.21
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 21 Short‐term maternal outcomes: wound infection.
Analysis 1.22
Analysis 1.22
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 22 Short‐term maternal outcomes: systemic infection.
Analysis 1.23
Analysis 1.23
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 23 Short‐term maternal outcomes: disseminated intravascular coagulation.
Analysis 1.24
Analysis 1.24
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 24 Short‐term maternal outcomes: amniotic fluid embolism.
Analysis 1.25
Analysis 1.25
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 25 Short‐term maternal outcomes: postpartum haemorrhage.
Analysis 1.26
Analysis 1.26
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 26 Short‐term maternal outcomes: blood transfusion.
Analysis 1.27
Analysis 1.27
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 27 Longer‐term maternal outcomes: failure to breastfeed.
Analysis 1.28
Analysis 1.28
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 28 Longer‐term maternal outcomes: urinary incontinence.
Analysis 1.29
Analysis 1.29
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 29 Longer‐term maternal outcomes: flatus incontinence.
Analysis 1.30
Analysis 1.30
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 30 Longer‐term maternal outcomes: faecal incontinence.
Analysis 1.31
Analysis 1.31
Comparison 1 Planned caesarean section versus planned vaginal birth, Outcome 31 Longer‐term maternal outcomes: postnatal depression, as defined by trial authors (EPDS > 12).

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