Placenta Previa and Adverse Neonatal Outcomes in A Tertiary Center

Abstract

Objective: Abnormal localization of the placenta with complete or partial closure of the cervix is called placenta previa. Placenta previa occurs in approximately 0.3-0.5% of pregnancies. In this study, we aimed to determine the risk factors and adverse fetal outcomes by comparing the neonatal outcomes of patients who underwent cesarean section for placenta previa with those of patients who underwent cesarean section for other indications. Method: Patients with singleton pregnancies diagnosed with placenta previa were retrospectively analyzed. Placenta previa, risk factors, and adverse neonatal outcomes were estimated using multivariate logistic regression models. Results: A total of 61, 110 deliveries were analyzed, and 632 deliveries (288 patients, 344 controls) were included in the study. The prevalence of placenta previa was 0.47%. Advanced maternal age [odds ratio (OR)=3.03], multigravida (≥5) (OR=2.31), previous abortion (OR=1.58) and curettage (OR=2.32) were significant risk factors for placenta previa. However, these patients had an increased risk of 1 st minute Apgar score <7 (OR=1.59) and neonatal intensive care unit (NICU) admission (OR=2.15). At the same time, the risk of Apgar score <7 at 1 min (OR=5.59) and 5 min (OR=3.94) and NICU admission (OR=28.47) increased in infants of patients with placenta previa <34 weeks. Newborns in the >37 weeks