[Pathophysiology of preeclampsia: some recent data].

Placental ischemia is the background of the pathophysiology of preeclampsia. It is mainly - but not exclusively - caused by an immunological conflict between maternal NK cells of the decidua and of the uterine junctional zone, and the HLA-C antigens shared by interstitial trophoblast. The maternal disease is the consequence of the placental ischemia, and is characterized by an inflammatory syndrome with an oxidative stress and an endothelial cell dysfunction.

Instrumental delivery: clinical practice guidelines from the French College of Gynaecologists and Obstetricians.

Routine use of a partograph is associated with a reduction in the use of forceps, but is not associated with a reduction in the use of vacuum extraction (Level A). Early artificial rupture of the membranes, associated with oxytocin perfusion, does not reduce the number of operative vaginal deliveries (Level A), but does increase the rate of fetal heart rate abnormalities (Level B). Early correction of lack of progress in dilatation by oxytocin perfusion can reduce the number of operative vaginal deliveries (Level B).

[Postpartum urinary retention].

Postpartum urinary retention is an uncommon event that occurs in 0.7 to 0.9% of vaginal deliveries.

[Fetal-pelvic disproportion and X-ray pelvimetry].

Objectives: X-ray pelvimetry is a method that not only allows exploring the pelvic inlet but also would partially explain the "fetal-pelvic disproportion". The aims of this study are to estimate this capacity to actually explain the aforementioned disproportion, assessing as well its influence on the follow-up of later pregnancies.

Patients And Methods: A retrospective study was performed in Angers' hospital, France.