Variables of the study
Patients with uterine rupture were divided in two groups according to
maternal and/or fetal complications or not, and compared. Maternal
complication was defined by estimated
postpartum hemorrhage (blood loss volume more than 500ml after vaginal
birth or more than 1000ml after caesarean section), hysterectomy,
obstetric injury (genital and/or urinary injury) and maternal death.
Neonatal complication was defined as Apgar score < 7 at 5 min,
neonatal intensive-care unit (NICU) admission, and neonatal
death10, 11. A complete uterine rupture was defined as
tearing in all layers of the uterine wall, including the serosa and
amniotic membranes. An incomplete uterine rupture was defined as tearing
in the muscular layers, with intact serosa or amniotic
membranes12.
We retrieved the charts of uterine rupture cases and collected
independent variables : 1) socio-demographic characteristics (age,
parity, education and place of residence; 2) pregnancy and labor related
variables (previous cesarean section, ectopic pregnancy, uterine
myomectomy and other uterine operation history, intrauterine operation;
3) clinical symptoms and signs 4) maternal and fetal outcomes (delivery
method, blood loss and transfusion, postpartum hemorrhage, ICU, birth
weight, 5-minute Apgar score<7).