Neonatal morbidity and placental pathology

Area of Science:

• Perinatology
• Neonatal Pathology
• Obstetrics

Background:

• Preterm birth complications significantly impact neonatal outcomes.
• Placental pathology plays a crucial role in fetal development and neonatal health.
• Understanding the link between placental findings and preterm morbidities is vital for improving infant care.

Purpose of the Study:

• To investigate the association between gestational age, placental pathology, and neonatal outcomes in preterm births.
• To identify specific placental lesions that predict adverse neonatal morbidities.
• To analyze how placental findings differ across gestational age categories in preterm infants.

Main Methods:

• Retrospective analysis of medical records and placental pathology results from 165 preterm infants (gestational age < 34 weeks).
• Infants categorized into two gestational age groups: 22-27 weeks and 28-33 weeks.
• Evaluation of neonatal morbidities including intraventricular hemorrhage (IVH), bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP), patent ductus arteriosus (PDA), and sepsis.

Main Results:

• Lower gestational age (< 28 weeks) was significantly associated with increased infection-related placental lesions like chorionic vasculitis and acute chorioamnionitis.
• Placental lesions indicating fetal-placental blood flow disturbances were more prevalent in the 28-33 week group.
• Villous edema and chorionic vasculitis were identified as independent predictors for the development of intraventricular hemorrhage (IVH).

Conclusions:

• Villous edema and chorionic vasculitis are significant risk factors for IVH in neonates born at less than 34 weeks gestational age.
• Gestational age influences the type of placental pathology observed in preterm infants.
• While chorioamnionitis is common, it was not independently associated with the tested preterm morbidities after controlling for gestational age.