Prevalence of high-grade perineal tear during labor in Mexican adolescents.

Introduction: There is a high rate of deliveries in adolescents in Mexico. This age group is vulnerable to obstetric complications, including lacerations of the anal sphincter.

Objective: To determine the prevalence of third and fourth degree perineal tears in adolescents during childbirth, and to evaluate risk factors in comparison with deliveries with lacerations of adult women.

[Factors associated with successful vaginal birth in women with a cesarean section history].

Unlabelled: 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.