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  • Title: Changes in vaginal breech delivery rates in a single large metropolitan area.
    Author: Hehir MP, O'Connor HD, Kent EM, Fitzpatrick C, Boylan PC, Coulter-Smith S, Geary MP, Malone FD.
    Journal: Am J Obstet Gynecol; 2012 Jun; 206(6):498.e1-4. PubMed ID: 22503650.
    Abstract:
    OBJECTIVE: Vaginal breech delivery rates have been accepted widely to be in decline and the Term Breech Trial (TBT) has recommended delivery of a breech-presenting infant by elective cesarean section delivery. Our aim was to examine the rate of vaginal delivery of term breech pregnancies in the 8 years before and after the publication of the TBT. STUDY DESIGN: We retrospectively examined vaginal delivery rates of breech presentations over a 16-year period in 3 large tertiary maternity hospitals that serve a single large metropolitan population. All 3 hospitals are of similar size and serve a population with similar risk profile. We also examined rates of perinatal mortality in the 3 hospitals over the study period. RESULTS: During the 16-year study period, there were 344,259 deliveries among the 3 hospitals; 11,913 of which were breech deliveries. There were 5655 breech deliveries in the 8 years before the publication of the TBT, with a cesarean delivery rate of 76.9%. There were 6258 breech deliveries in the 8 years since publication of the TBT, and the cesarean delivery rate increased to 89.7% (P < .0001). During the 8 years since publication, the rate of vaginal delivery in nulliparous women decreased from 15.3-7.2% (P < .0001). The vaginal breech delivery rate in multiparous women decreased from 32.6-14.8% (P < .0001). The rates of corrected perinatal mortality showed a significant decrease in the last 4 years of the study. CONCLUSION: Our study demonstrates that the results and recommendations of the TBT have contributed to decreasing vaginal breech delivery rates, which were already in decline before its publication.
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