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| Different methods of umbilical cord ligation of the neonates during cesarean section and their influences on the neonatal outcomes, blood gas analysis results, and neurobehavioral function |
| Banan Hospital Affiliated to Chongqing Medical University, Chongqing, 401320 |
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Abstract To study the best method of umbilical cord ligation of the neonates during cesarean section, and to study its influence on the outcomes, blood gas analysis results and the neurobehavioral function of the neonates. Methods: A prospective study was conducted on 120 women who wanted cesarean section from January 2019 to January 2021. These women were randomly divided into three groups. The umbilical cord of the neonates of the women in group A was squeezed in 60s after born, and then was ligated within 1 to 3 minutes. The umbilical cord of the neonates of the women in group B was ligated within 60s after born, and then was squeezed in 3 minutes. The umbilical cord of the neonates of the women in group C was ligated within 60s. The values of heart rate and oxygen partial pressure at 10min after birth, the values of bilirubin and nerve function in the 4th day after birth of the neonates were compared among the three groups. Results: The heart rate of the neonates at 10min after birth in group A (146.69±1.77 beats/min), in group B (148.22±2.87 beats/min), and in group C (158.81±1.66 beats/min)had increased gradually. The value of oxygen partial pressure of the neonates at 10min after birth in group A (98.96±2.64%), in group B (96.28±2.43%), and in group C (92.62±2.25%)had decreased gradually. The values of RBC count, hemoglobin, and hematocrit of the neonates in 24h after birth in group A, group B, and group C had decreased gradually. The scores of primitive reflex, passive muscle strength, behavioral ability, and active muscle strength, and the general condition of the neonates in group A, group B, and group C had decreased gradually. The total score of neurobehavioral function of the neonates in group A (36.94±2.51 points), in group B (34.76±2.45 points), and in group C (32.38±2.78 points)had decreased gradually (all P＜0.05). Conclusion: The squeezing neonatal umbilical cord and then delayed ligation of the neonates during cesarean section can significantly increase the values of the neonatal hemoglobin and blood cells, and can improve the neonatal neurobehavioral function scores.
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