Related Experiment Video
Updated: Jul 23, 2025

External Cephalic Version: Is it an Effective and Safe Procedure?
Published on: June 6, 2020
Maternal and neonatal complications during delivery according to passive versus active second stage in woman with
Élisabeth Gagnon1, Anne-Marie Côté2,3, Marie-Ève Roy-Lacroix4
1Department of Medicine, Université de Sherbrooke, Sherbrooke, Québec, Canada.
Background:
The incidence of serious complications during vaginal delivery with a passive second stage in women with medical conditions is unknown.
Methods:
Our retrospective cohort study with matched groups (pairing 1 passive with 2 active second stage) included women who had a medical delivery plan from the high risk obstetric team at our center. The primary outcome was a composite of major maternal and neonatal complications.
Results:
The primary outcome occurred in 50% (12/24) of women in the passive group versus 35.4% (17/48) (p = 0.24) in the active group. In the passive group, we observed a longer passive second stage of labor (28 vs. 8 min, p < 0.001), a tendency towards more assisted vaginal births (29.2% vs. 12.5%, p = 0.08), and more traumatic deliveries (16.7% vs. 0%, p = 0.012).
Conclusion:
The higher proportion of complications in women who had a passive second stage should encourage physicians to make this recommendation only in selected cases.
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