Between 3-4% of babies begin labor in the breech (bottom first) position, increasing the risk of neonatal morbidity and mortality. Pre-emptive C-section has become the preferred method of delivery for breech babies, but now some are questioning this recommendation. The controversy is fueled by differing appraisals of the danger and by differing assessments of the whether any risk of neonatal death can be justified in the age of the safe Cesarean.
The best conducted and most important study comparing breech vaginal delivery with elective C-section is the Term Breech Trial (TBT) conducted by Mary Hannah and colleagues. It is the only randomized control trial of its kind.
… [W]e found that the fetuses of women allocated planned caesarean section were significantly less likely to die or to experience poor outcomes in the immediate neonatal period than the fetuses of women allocated planned vaginal birth. Although some of the deaths in the planned vaginal birth group were related to difficulty with vaginal breech delivery, others were clearly associated with problems during labour. Thus the avoidance of labour and vaginal breech delivery could have contributed to better outcomes with planned caesarean section…
A more recent trial, the PREMODA (PREsentation et MODe d’Accouchement: presentation and mode of delivery) study produced different findings and as a result, some obstetricians have been calling for a re-evaluation of the standard recommendation for C-section delivery of a breech baby. (more…)
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