Intrapartum cervical lacerations and their impact on future pregnancy outcome.

To investigate the significance of intrapartum cervical lacerations on subsequent pregnancies. A retrospective cohort analysis was conducted, comparing outcomes of subsequent singleton pregnancies, in women with and without a history of cervical lacerations in a previous delivery. Deliveries occurred between the years 1991-2014 at the Soroka University Medical Center. Multiple logistic regression models were constructed to control for clinically significant confounders. During the study period 187,162 deliveries met the inclusion criteria. Of them, 429 (0.2%) occurred in women with a history of cervical lacerations in the previous pregnancy (study group). The study group exhibited significantly higher rates of recurrent cervical lacerations (21/429, 4.9% versus 275/187 162,0.1%, value = .001), cerclage (13/429, 3% versus 260/187 162, 0.1% value = .001), cervical incompetence (8/429, 1.9% versus 609/187 162, 0.3% value = .001) cesarean delivery (CD) (97/429, 22.6% versus 26 280/187 162,14%, value = .001), severe perineal tears (third or fourth degree; 2/429, 0.5%, versus 164/187 162, 0.1%, value = .056) and blood transfusion (11/429, 2.6% versus 2448/187 162, 1.3%, value = .022) as compared with the comparison group. Using a multivariable logistic regression model, history of cervical laceration in a previous pregnancy was found to be an independent risk factor for subsequent CD (OR 1.4, 95% CI 1.1-1.9), recurrent cervical laceration (OR 29.3, 95% CI 17.7-48.5), severe perineal lacerations (OR 11.7, 95% CI 5.1-27.2), and preterm delivery (OR 1.8, 95% CI 1.1-2.8) in the subsequent pregnancy. A history of intrapartum cervical laceration is an independent risk factor for recurrent cervical lacerations, CD, preterm delivery, and severe perineal lacerations in the subsequent pregnancy.