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[Demelin's maneuver for arm entrapment during vaginal breech delivery]
R Bassi1, M Lallemant2, D Riethmuller3
1Service de gynécologie obstétrique, Pôle Mère-Femme, centre hospitalier régional Universitaire Jean Minjoz, 3, boulevard Alexandre Fleming, 25000 Besançon, France.
Objectives:
To evaluate Demelin's maneuver for arm entrapment's dystocia during vaginal breech deliveries after failure of the usual Lovset maneuver.
Methods:
We led a retrospective cohort study in two French maternities. Between January 2013 and June 2020, we included all vaginal breech deliveries of live newborns after 32 weeks of gestation requiring Demelin's maneuver for persistent arm entrapment despite the Lovset maneuver. The primary endpoint was the Demelin's maneuver success without the existence of a neonatal trauma related to the maneuver.
Results:
Among 1611 vaginal breech deliveries, 29 with Demelin's maneuver for an arm entrapment were enrolled (prevalence 0,02%). No failure of this maneuver was found. There was 10 nulliparous (34.5%). Mean gestational age was 38±2.4 weeks of gestation. The success of Demelin's maneuver without trauma related to it was estimated at 82.8%. No serious neonatal trauma was noticed. Five fractures (17.2%), one humeral and four clavicular, without sequelae were diagnosed. Mean weight of newborns was 2945.5 grams and the median arterial pH was 7.17. The median 5-minutes-Apgar score was 10. Maternal morbidity was low: one case (3.4%) of obstetric anal sphincter injuries (type III).
Conclusion:
Demelin's maneuver seems to be an effective and safe method to treat an arm entrapment's dystocia during vaginal breech delivery after failure of the Lovset's maneuver.
