Application of mechanical balloon catheter in induced labor of pregnant women infected with Group B streptococcus

JIN Jia-xi; CHEN Zhen-yu; ZHONG Wan; MING Xue; SUN Jing-li

doi:10.16048/j.issn.2095-5561.2025.04.02

Abstract：Objective To investigate the effects of mechanical cervical ripening on pregnancy outcomes in pregnant women with Group B Streptococcus(GBS)infection.Methods A total of 80 Full-term pregnancy with GBS,full term pregnant women who had a positive GBS test and vaginal delivery after induction of labor were collected in the Northern Theater General Hospital from January 2020 and December 2022.Aged(29.96±3.73)years old,ranging from 23 to 37 years old.Among them,40 pregnant women who successfully induced labor with a disposable cervical dilatation balloon were the balloon group,and oxytocin was used as the oxytocin group for a total of 40 cases.Comparison of the laboratory infection indicators(white blood cell count,C-reactive protein,and procalcitonin),cervical ripeness,delivery time,and the incidence of complications between the two groups of puerpera.Comparison of the newborns and neonatal laboratory infection indicators(white blood cell count,Creactive protein,procalcitonin,and GBS positive in blood culture)after induction of labor between the two groups of puerpera.Results The C-reactive protein level in the balloon group was higher than that in the oxytocin group,the difference was statistically significant(P＜0.05).The cervical ripening status in the balloon group was better than that in the oxytocin group,the difference was statistically significant(P＜0.05).The causes labor time and first stage of labor duration in the balloon group was shorter than that in the oxytocin group,the difference was statistically significant(P＜0.05).The postpartum hemorrhage rate in the balloon group was lower than that in the oxytocin group,the difference was statistically significant(P＜0.05).The rates of meconium-stained amniotic fluid,fetal distress,fever during labor,postpartum hemorrhage,and puerperal disease in the balloon group were lower than those in the oxytocin group,with no statistically significant difference(P＞0.05).The rates of neonatal pneumonia,jaundice,sepsis,and Apgar score at 1 minute after birth in the balloon group were also lower than those in the oxytocin group,the difference was not statistically significant(P＞0.05).The comparison of white blood cell counts,C-reactive protein,procalcitonin,and positive blood culture for GBS in the newborns of women who underwent full-term induction with oxytocin and balloon showed no statistically significant difference(P＞0.05).Conclusion The use of disposable cervical dilatation balloon to mechanically promote cervical ripening did not lead to adverse outcomes for pregnant women and newborns.It can improve the effectiveness of induction of labor at term without increasing the probability of infection.