Cervical ripening by prostaglandin E2 in patients with a previous cesarean section

Is oral consumption of dates (Phoenix dactylifera L. fruit) in the peripartum period effective and safe integrative care to facilitate childbirth and improve perinatal outcomes: a comprehensive revised systematic review and dose-response meta-analysis

BACKGROUND

Recent reviews have reported inconclusive results regarding the usefulness of consuming dates (Phoenix dactylifera L. fruit) in the peripartum period. Hence, this updated systematic review with meta-analysis sought to investigate the efficacy and safety of this integrated intervention in facilitating childbirth and improving perinatal outcomes.

METHODS

Eight data sources were searched comprehensively from their inception until April 30, 2023. Parallel-group randomized and non-randomized controlled trials published in any language were included if conducted during peripartum (i.e., third trimester of pregnancy, late pregnancy, labor, or postpartum) to assess standard care plus oral consumption of dates versus standard care alone or combined with other alternative interventions. The Cochrane Collaboration's Risk of Bias (RoB) assessment tools and the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) were employed to evaluate the potential RoB and the overall quality of the evidence, respectively. Sufficient data were pooled by a random-effect approach utilizing Stata software.

RESULTS

Of 2,460 records in the initial search, 48 studies reported in 55 publications were included. Data were insufficient for meta-analysis regarding fetal, neonatal, or infant outcomes; nonetheless, most outcomes were not substantially different between dates consumer and standard care groups. However, meta-analyses revealed that dates consumption in late pregnancy significantly shortened the length of gestation and labor, except for the second labor stage; declined the need for labor induction; accelerated spontaneity of delivery; raised cervical dilatation (CD) upon admission, Bishop score, and frequency of spontaneous vaginal delivery. The dates intake in labor also significantly reduced labor duration, except for the third labor stage, and increased CD two hours post-intervention. Moreover, the intervention during postpartum significantly boosted the breast milk quantity and reduced post-delivery hemorrhage. Likewise, dates supplementation in the third trimester of pregnancy significantly increased maternal hemoglobin levels. The overall evidence quality was also unacceptable, and RoB was high in most studies. Furthermore, the intervention's safety was recorded only in four trials.

CONCLUSION

More well-designed investigations are required to robustly support consuming dates during peripartum as effective and safe integrated care.

TRIAL REGISTRATION

PROSPERO Registration No: CRD42023399626.

Prospective observational study investigating the effectiveness, safety, women’s experiences and quality of life at 3 months regarding cervical ripening methods for induction of labor at term—The MATUCOL study protocol

Background

The purposes of successful induction of labor (IOL) are to shorten the time for IOL to delivery, increase the vaginal delivery rate, and reduce the rate of maternal and neonatal morbidity. In cases of unfavorable cervix (Bishop score <6), cervical ripening is advised to improve vaginal delivery rate. It may be initiated by mechanical (double balloon catheter (DBC), synthetic osmotic dilator) or pharmacologic (prostaglandins) methods, and the problem is complex due to the multitude of cervical ripening methods. We are constantly looking for the optimal protocol of cervical ripening for each woman. The present study aims to elucidate whether cervical ripening method is associated with increase rate of vaginal delivery, good women’s experience and unaltered long-term quality of life after cervical ripening at term regarding maternal and obstetric characteristics.

Methods and design

The MATUCOL study is a monocentric, prospective, observational study of all consecutive women who required cervical ripening (Bishop score <6) using different methods (DBC, vaginal dinoprostone, oral misoprostol) with a live fetus at term (≥37 weeks) between January 2020 and August 2021. The outcomes will be mode of delivery, maternal and neonatal morbidity, discomfort/pain assessments during cervical ripening, women’s experience and satisfaction, and the impact of cervical ripening on the health-related quality of life at 3 months. If it reports a significant efficacy/safety/perinatal morbidity/women’s satisfaction/quality of life at 3 months post-delivery associated with a method of cervical ripening in a specific situation (gestational and/or fetal disease) using a multivariate analysis, its use should be reconsidered in clinical practice.

Discussion

This study will reveal that some cervical ripening methods will be more effectiveness, safe, with good women’s experiences and QOL at 3 months compared to others regarding maternal and obstetric characteristics.

Trial registration

This study is being performed at La Roche sur Yon Hospital following registration as GNEDS on January 8, 2020.

Prevalence of uterine rupture among women with one prior low transverse cesarean and women with unscarred uterus undergoing labor induction with PGE2: A systematic review and meta-analysis

BACKGROUND

As uterine rupture may affect as many as 11/1000 women with 1 prior cesarean birth and 5/10.000 women with unscarred uterus undergoing labor induction, we intended to estimate the prevalence of such rare outcome when PGE2 is used for cervical ripening and labor induction.

METHODS

We searched MEDLINE, ClinicalTrials.gov and the Cochrane library up to September 1st 2020. Retrospective and prospective cohort studies, as well as randomized controlled trials (RCTs) on singleton viable pregnancies receiving PGE2 for cervical ripening and labor induction were reviewed. Prevalence of uterine rupture was meta-analyzed with Freeman-Tukey double arcsine transformation among women with 1 prior low transverse cesarean section and women with unscarred uterus.

RESULTS

We reviewed 956 full text articles to include 69 studies. The pooled prevalence rate of uterine rupture is estimated to range between 2 and 9 out of 1000 women with 1 prior low transverse cesarean (5/1000; 95%CI 2-9/1000, 122/9000). The prevalence of uterine rupture among women with unscarred uterus is extremely low, reaching at most 0.7/100.000 (<1/100.000.000; 95%CI <1/100.000.000-0.7/100.000, 8/17.684).

CONCLUSIONS

Uterine rupture is a rare event during cervical ripening and labor induction with PGE2.

Outpatient versus inpatient balloon catheter insertion for labor induction: A systematic review and meta-analysis of randomized controlled trials

OBJECTIVE

To compare between outpatient and inpatient balloon catheter insertion for labor induction.

METHODS

We searched in four different databases for the available trials during May 2020. We included randomized controlled trials (RCTs) that compared outpatient to inpatient balloon catheter for induction of labor. We extracted the available data from the included studies and pooled them in meta-analysis using RevMan software. The dichotomous data were pooled as risk ratio (RR) and the continuous data were pooled as mean difference (MD) with the corresponding 95% confidence intervals (CI).Our primary outcome was the rate of cesarean delivery. Our secondary outcomes were the length of hospital stay, Bishop score, and different adverse events including postpartum hemorrhage, Apgar score less than 7 at 5 minutes, and chorioamnionitis.

RESULTS

Eight RCTs with a total number of 740patients were included. The cesarean delivery rate was significantly reduced among outpatient balloon catheter compared to inpatient balloon catheter (RR = 0.63, 95% CI [0.46, 0.86], p = 0.004). Outpatient balloon catheter was associated with shorter hospital stay duration in comparison with inpatient group (MD= -0.38, 95% CI [-0.61, -0.14], p = 0.002). Outpatient group was linked to a more favorable increase in Bishop score (MD = 0.88, 95% CI [0.78, 0.98], p>0.001). There were no significant differences between both groups regarding different adverse events.

CONCLUSION

Outpatient balloon catheter priming is safe and effective in reducing cesarean delivery rates and shortening the length of hospital stay with a better Bishop score.