A french study published in 2015 (DAME) showed a decrease of shoulder dystocia and an increase of spontaneous vaginal delivery when the non insulin-treated diabetes patients with large-for-date fetus were induced.

This new protocole was introduced in Montpellier University Hospital delivery room.

The aim of this study is to evaluate the protocole in Montpellier hospital and to compare our results with the DAME results.

Currently, large for date fœtus need an induction of labour just if the mother is an insulin diabetic.

The DAME's protocol included the large for date feotus witch have a estimate weight >3500g at 36 GA, >3700g at 37 GA, >3900g at 38 GA.

Inclusion criteria:

Age >18 years old Single pregnancy Cephalic presentation no contraindications to planned vaginal delivery no fœtal pathology

Large-for-date foetus (estimated weight > 95%) :

• Clinically suspeted or estilated weight >90% at the 3 trimester ultrasound
• Estimated fœtal weight :

> 3500g at 36 GA > 3700g at 37 GA > 3900g at 38 GA

Exclusion criteria:

Age <18 yeaurs old contraindications to vaginal delivery insulin-trated diabetics or imbalance diabetics. neonatal trauma or shoulder dystocia, severe urinary or faecal incontinence.

Pregnant patients non diabetic or diabetic without insulin-treatment with large for date fœtus.

NC