Effects of delayed umbilical cord clamping on full-term newborns and maternal outcomes / 中国基层医药

ABSTRACT

Objective@#To explore the effects of delayed umbilical cord clamping on full-term newborns and maternal outcomes.@*Methods@#From January 2017 to April 2018, 287 normal full-term newborns delivered by vagina in the First People's Hospital of Xiaoshan District were selected in the research, and randomly divided into the control group (141 cases) and observation group (146 cases) according to the order of entering the delivery room.The control group was ligated the umbilical cord 15-20 s after delivery, while the observation group was ligated the umbilical cord 60 s after delivery.The level of hemoglobin, hematocrit, the incidence of anemia, polycythemia, hyperbilirubinemia and phototherapy time of full-term newborns were compared between the two groups 3 days after birth.The third stage of labor, the amount of postpartum hemorrhage and the incidence of postpartum hemorrhage were compared between the two groups.@*Results@#The hemoglobin[(181.49±16.84) g/L] and hematocrit (0.545±0.055) in the observation group were significantly higher than those in the control group[(175.90±17.49 )g/L, (0.515±0.062)] at the third day after birth (t=2.748, 3.409, all P<0.05). The incidence of neonatal anemia in the observation group was 0.68% (1/146), which was significantly lower than that in the control group [4.96% (7/141)], and the difference was statistically significant (χ2=4.848, P<0.05). The incidence rates of neonatal polycythemia, hyperbilirubinemia and phototherapy time in the observation group were 2.05% (3/146), 24.66% (36/146), (65.50 ±14.63)h, respectively, which in the control group were 0.17% (1/141), 22.70% (32/141) and (62.09±14.40)h, respectively, there were no statistically significant differences between the two groups (χ2=0.945, 0.153, t=0.953, all P>0.05). The third stage of labor time, postpartum hemorrhage volume, incidence of postpartum hemorrhage in the observation group were (5.97 ±4.17)min, (239.04±69.15)mL, 2.05% (3/146), respectively, which in the control group were (5.84±3.62)min, (227.73±56.99)mL, 0.71% (1/141), respectively, there were no statistically significant differences between the two groups (t=0.281, 1.504, χ2=0.945, all P>0.05).@*Conclusion@#Delayed umbilical cord clamping can increase the level of hemoglobin and hematocrit in newborns, reduce the incidence of anemia in newborns, and without increasing postpartum hemorrhage.