Department of Obstetrics and Gynecology, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Affiliated to Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
J Perinat Med. 2009;37(5):525-8. doi: 10.1515/JPM.2009.095.
To compare selected umbilical cord parameters, especially cord coiling, between breech and vertex presentations.
We prospectively collected umbilical cords from uncomplicated breech and vertex obtained during elective term cesarean deliveries. We compared various cord parameters between the two groups as well as data regarding obstetric history and pregnancy outcome.
We evaluated 55 umbilical cords from breech and 55 from vertex deliveries. Umbilical cord length (56.93 cm vs. 63.95 cm, P=0.05), number of coils (5.1+/-0.4 vs. 11.7+/-0.6, P<0.0001) and umbilical cord index (UCI) (0.09 coils/cm vs. 0.18 coils/cm, P<0.0001) were all significantly lower for breech presentations and remained significant following multivariate analysis.
We document significant differences in umbilical coiling and the UCI between breech and vertex presentation. The precise reason for these differences is still unclear.
比较臀位和头位分娩时的脐带参数，尤其是脐带缠绕情况。
前瞻性收集在择期剖宫产时获得的无并发症臀位和头位脐带。我们比较了两组之间的各种脐带参数以及产科病史和妊娠结局数据。
我们评估了 55 例臀位分娩和 55 例头位分娩的脐带。臀位分娩的脐带长度（56.93cm 对 63.95cm，P=0.05）、圈数（5.1+/-0.4 对 11.7+/-0.6，P<0.0001）和脐带指数（UCI）（0.09 圈/cm 对 0.18 圈/cm，P<0.0001）均显著低于头位，且多变量分析后仍有统计学意义。
我们记录了臀位和头位分娩时脐带缠绕和 UCI 存在显著差异。这些差异的确切原因尚不清楚。
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