Pronostic obstétrical de la présentation du siège en cas d’admission en travail avancé

[Impact of a service protocol on the practice of vaginal delivery of breech presentations at term]

OBJECTIVES

The delivery of breech presentations remains controversial. Our study analysed the impact of a service protocol on the proportion of planned vaginal delivery and its success. Immediate neonatal morbidity and factors that may influence the success of vaginal delivery were studied.

METHODS

Retrospective study, between 2009 and 2020 at the CHRU of Limoges, type 3 maternity hospital, on patients with a breech foetus at term. The proportion of planned vaginal delivery and the rate of effective vaginal delivery were compared before/after 2015. Neonatal morbidity was compared for planned vaginal delivery and planned cesarean delivery groups.

RESULTS

We included 923 patients. The rate of planned vaginal delivery was significantly higher after 2015 from 5.2% to 19% (P<0.001), with a success rate increasing from 60% to 82.1% (P=0.06). The rate of vaginal breech deliveries significantly increased from 3.8% to 17% (P<0.001). We found significantly more newborns with moderate acidosis when a vaginal delivery was attempted (P<0.001). The success of vaginal delivery was correlated to the Magnin index (P=0.044), to gestational age (P=0.037), and to multiparity (OR 3.78 95% CI [1.42-10.03] P=0.006).

CONCLUSION

Our study demonstrates the benefits of setting up a service protocol for the practice of breech vaginal delivery.

Outcome of labor among women admitted at advanced cervical dilatation

Objective: To identify in our setting the outcome of labor among women admitted at advanced cervical dilatation.Methods: This prospective cohort study was carried out between 1 December 2015 and 31 March 2016. Women carrying live term singletons in vertex presentation admitted with a cervical dilatation >5 cm (late arrival group) or ≤5 cm (early arrival group) were followed up till delivery. The main variables studied included mode of delivery, genital lacerations, and postpartum hemorrhage (PPH). Data from women in both groups were compared. Fisher's exact test and t-test were used for comparison. p < .05 was considered statistically significant.Results: Late arrival in the labor ward was observed in 52.5% of women (126/240). Late arrival in the labor ward was significantly associated with a reduction in the cesarean section (CS) risk (Relative risk (RR) 0.34, 95%CI 0.12-0.94), but with an increased risk of lower genital tract lacerations (RR 2.3, 95%CI 1.3-3.8), PPH (RR 4.5, 95%CI 1.04-20.2), and admission of the newborn in the neonatal intensive care unit for neonatal asphyxia or infection (RR 3.6, 95%CI 1.04-12.5).Conclusion: Late arrival in the labor ward was associated with an increased risk of maternal and neonatal morbidity. Therefore, women should be encouraged to arrive early in the labor ward.