脐带的一端连于胎儿脐轮，另一端连于胎盘胎儿面，正常长30-70厘米，是连接胎儿与母体的桥梁，通过脐带向胎儿输送营养物质、气体及代谢产物。脐带异常包括脐带过长，脐带过短，脐带缠绕，脐带打结，脐带扭转，脐带脱垂等。
... 圆形孔型 round pass 脐带异常 abnormality of umbilical cord 可能式否定式 negative potential constructions ...
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... 脐带异常 Umbilical cord 产褥中暑 Puerperal heatstroke 产褥感染 Puerperal infection ...
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脐带异常对围产儿的影响_医网打尽文献搜索 关键词：脐带异常；围产儿；预后 [gap=1090]Keywords：Abnormal cord ; Perinatal infant; Prognosis
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Umbilical cord coiling took the most percent in abnormal umbilical cord. We should find out abnormal umbilical cord by testing umbilical flow.
脐带异常以脐带缠绕多见,通过脐血流的流量、流速等检测进一步及时发现脐带异常。
参考来源 - 159例死胎临床分析·2,447,543篇论文数据，部分数据来源于NoteExpress
目的：探讨脐带异常的因素及对围产儿的影响。
Objective: Toexplore the causes and influence of umbilical cord abnormality on prenatal fetal.
脐带异常中脐带真结节、扭转均属偶然因素，难以预防。
True knot and torsion of cord are cause by occasional factors and difficult to prevent.
结论：剖宫产、早产、脐带异常是导致新生儿窒息主要原因。
Conclusion: The major causes of neonatal asphyxia were cesarean section, premature delivery, abnormal cord.
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