彩色多普勒检测脐带螺旋程度及其对围产儿影响的研究

The helix degree of umbilical cord and its influence on perinatal fetus by color Doppler examination

目的探讨脐带螺旋程度对围产儿影响的关系。方法选择发生脐带螺旋状过度扭转孕妇100例,测量脐带扭转1周节段的长度/脐带直径,计算脐带扭转螺距值,判断脐带螺旋程度;测量胎儿脐动脉血流参数;新生儿出生立刻抽脐动脉血1.0 m l进行血气分析;出生1 m in时进行阿氏评分,观察其与新生儿窒息的关系,并与无脐带扭转的正常孕妇100例比较。结果脐带扭转螺距值越小(<2.0),脐动脉血流S/D比值越增高(>3.0),胎儿宫内窘迫发生的机会越大,新生儿阿氏评分越低。结论彩色多普勒检测脐带螺旋程度可作为产前及产时评估胎儿危险度的一项重要指标。

Objective To study the influence of helix degree of umbilical cord on perinatal fetus. Methods Totally 100 gravida suffered helix torsion of umbilical cord in our hospital were selected. The segmental length/diameter of a round of torsion of umbilical cord was measured. The helix ratio of umbilical cord was counted and the helix degree was assessed. The umbilical arterial blood parameter of fetus was measured. About 1 ml blood was drawn from umbilical artery and blood gas analysis was undergone immediately after the fetus were born. A family score was evaluated after one minute, and the relationship between the family score and anoxia of newborn was observed. Results The shorter the helix length of torsion of cord was （ 〈 2.0）, the higher the umbilical artery blood stream S/D was （ 〉 3.0）, and the higher the chance of occurrence of the fetal distress in uterus. Conclusion The helix degree of umbilical cord by color Doppler examination can be used as an important marker in the evaluating the risk of fetus in the antepartum and intrapartum.