[Factors associated with successful vaginal birth in women with a cesarean section history].
BAKCGROUND: Caesarean section is the main proceedings for ending of pregnancy in the world, and currently represents a public health problem. Some factors that benefit the likelihood of vaginal birth after a previous C-section have been described in literature, with scoring tools designed to predict success for trial of labor after a previous cesarean. There are few studies that identify predictors of success for vaginal delivery in Latin-American patients.


OBJECTIVE
To identify predictive factors associated to vaginal delivery success in patients with a prior cesarean delivery.


METHODS
Case-control study. We included patients with one previous cesarean delivery admitted at our hospital. The variables analyzed with a logistic regression system to predict vaginal delivery success probabilities.


RESULTS
A total of 11 60 patients were included, 668 underwent C-section (considered control group), and 492 patients had a vaginal delivery (considered study group). The Factors associated to vaginal birth after cesarean delivery were maternal age (25.1±5.4 vs 24.7±5.5 years old, OR 0.967, p<0.05), fetal weight (3,253±389 vs 3,383±452 g, OR 0.99, p<0.05), previous vaginal delivery (49 vs 1 8.4%, OR 2.97, p<0.05) and spontaneous labor (90.8 vs 74.1%, OR 3.68, p<0.05, respectively).


CONCLUSIONS
Maternal age, fetal weight, previous vaginal delivery and spontaneous labor were associated with vaginal delivery success in patients with a previous cesarean delivery.
Denisse Lorena
DL
Sepúlveda-Mendoza
Marisol
M
Galván-Caudillo
Gonzalo Andrés
GA
Soto-Fuenzalida
Daniel Humberto
DH
Méndez-Lozano
D000328:Adult; D016022:Case-Control Studies; D002585:Cesarean Section / Q000706:statistics & numerical data*; D036861:Delivery, Obstetric / Q000379:methods*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D016015:Logistic Models; D008423:Maternal Age; D011247:Pregnancy; D012307:Risk Factors; D014219:Trial of Labor; D016064:Vaginal Birth after Cesarean / Q000706:statistics & numerical data*