[Birth in the Midwife-Led Delivery Room of a Perinatal Center - Learning Curve, Outcomes and Benchmark].

Introduction: Most births in Germany take place in a clinical setting. Midwife-led units have been offered in Germany since 2003 as an addition to the primarily physician-led obstetric care. The purpose of this study was to analyze differences regarding medical parameters between a midwife-led and a primarily physician-led unit in a level 1 perinatal center.

Material and methods: Between 12/2020 and 12/2021, all births begun in the midwife-led unit were retrospectively analyzed and compared to a physician-led control cohort. Outcome measures were defined as obstetric interventions, delivery mode and duration, delivery position, and maternal and neonatal outcome.

Results: The percentage of deliveries started in the midwife-led unit out of the total birth rate was 4.8% (n=132). Most transfers were made for more effective analgesia (52.6%). Among medically indicated transfers (n=30, 39.5%), transfers due to CTG abnormalities and failure to progress in labor after rupture of membranes predominated. 43.9% (n=58) of patients gave birth successfully in the midwife-led unit. The rate of episiotomy was significantly higher in the primarily physician-led unit compared to the successful midwife-led unit (p=0.019).

Conclusion: Birth in a midwife-led unit within a perinatal center can be considered an equivalent alternative to primarily physician-led birth for low-risk pregnant women.