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Williams Obstetrics, 23e
| Section IV. Labor and Delivery > |
Chapter 24. Breech Presentation and Delivery
Sections: Breech Presentation and Delivery: Introduction, Associated Factors, Diagnosis, Complications, Prognosis, Techniques for Breech Delivery, Analgesia and Anesthesia, Version, References.
Topics Discussed: breech extraction; breech presentation.
Excerpt:"When the buttocks of the fetus enter the pelvis before the head, the presentation is breech. The term probably derives from the same word as britches, which described a cloth covering the loins and thighs. Breech presentation is more common remote from term because the bulk of each fetal pole is more similar. Most often, however, as term approaches, the fetus turns spontaneously to a cephalic presentation because the increasing bulk of the buttocks seeks the more spacious fundus. But, breech presentation persists in 3 to 4 percent of singleton deliveries at term (Fig. 24-1). For example, the annual rate of breech presentation at delivery in nearly 270,000 singleton newborns at Parkland Hospital has varied from only 3.3 to 3.9 percent during the past 20 years...."
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