Özet:

Objective:.The aim of this study was to determine maternal risk factors and the effect of these factors on morbidity and mortalityin late preterm infants. Materials and method: In this retrospective study, the 242 late preterm babies who were born between 34 0/7 - 36 6/7weeks of gestation, between January 1, 2012 and June 30, 2015 at Başkent University Faculty of Medicine Hospital and hospitalized in the neonatal intensive care unit were included. Babies born at the outside center and hospitalized to our hospital with multiple congenital anomalies, chromosomal abnormalities were excluded from the study. Birth data and maternal risk factors for each neonate were recorded in neonatal data collection forms using the database of our hospital. Results and conclusion: The most common morbidity were identified as feding intolerance (70.2 %), hyperbilirubinemia (43.0 %), transient tachypnea of the newborn (40.0 %), hypoglycemia (16.9 %), respiratory distress syndrome (15.7 %) and late neonatal sepsis (13.7 %). Respiratory distress syndrome in infants of mothers with ablation placenta (p=0.045), transient tachypnea of the newborn in infants of mothers with oligohydramniosis (p=0.04), hypoglycemia in infants of mothers with gestational diabetes mellitus (p=0.01) and hypoglycemia in mothers with placenta previa (p=0.04) were seen significantly higher. In our study, morbidity was found in infants born at 34 weeks of gestation compared to other gestational weeks of late preterm group (p=0.01). Especially respiratory distress syndrome and feeding intolerance were statistically significantly higher in babies born at the 34 gestational week compared to babies born at the other week of gestation (p=0.002). It was determined that preeclampsia, placenta previa, ablation placenta, oligohydramniosis and gestational diabetes mellitus in mother increased to morbidity. Knowing the maternal risk factors affecting mortality and morbidity in late preterm infants will enable early detection and prevention of possible problems

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