Grassroots Network Message 602003
Term Breech Trial flawed
Dear Friends,
The infamous “Term Breech Trial” (Hannah et al, “Planned cesarean section versus planned vaginal birth for breech presentations at term.” Lancet 2000. 21:1375-83), published five years ago, claimed that planned cesarean was safer for breech babies than vaginal delivery. The study had a dramatic effect; quickly it became difficult to find any OB in the US who would “allow” a vaginal delivery for a breech baby.
Now the Green Journal (American Journal of Obstetrics and Gynecology) has published a stinging critique that concludes the original study was deeply flawed and its conclusions completely suspect (Glezerman M, “Five years to the term breech trial: The rise and fall of a randomized controlled trial.” Amer J Ob & Gyn (2006) 194, 20-5). The article, published as a “clinical opinion” in the journal, thoroughly itemizes the methodological flaws and clinical problems with the Term Breech Trial. The conclusion: the recommendations of the original trial should be withdrawn. He found that “most cases of neonatal death and morbidity in the term breech trial cannot be attributed to the mode of delivery.”
The author is pessimistic that even withdrawal of the original study and its recommendations will make any difference, because the recommendations were so in line with what American obstetricians wanted – a planned cesarean is easier and carries less legal risk for the OB.
However, even if this critique does not change hospital policy, it is still a powerful tool for both midwives and mothers. Now we have a paper published in a peer-reviewed journal pointing out that the term breech trial in fact did not find any difference between vaginal and cesarean deliveries of breech babies. Furthermore, the article articulates some of the drawbacks inherent in randomized controlled trials (RCTs); that not all research questions can be answered with this “gold standard” research technique is important to understand.
One mother wrote to me: I am glad to have a refutation like this finally published but I am deeply saddened for all the women, including my daughter, who were forced to have c-sections based on the now-discredited article.
Sincerely,
Susan Hodges, “gatekeeper”
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