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Minerva Pediatrica 2019 Oct 11

DOI: 10.23736/S0026-4946.19.05551-8


lingua: Inglese

A maternal age of 35 years and over may increase the risk for cystic periventricular leukomalacia in very preterm infants

Gustavo ROCHA 1 , Filipa FLOR-de-LIMA 1, 2, Ana P. MACHADO 3, Hercília GUIMARAES 1, 2, Hypertensive Disorders of Pregnancy Study Group 

1 Department of Neonatology, Centro Hospitalar São João, Porto, Portugal; 2 Faculty of Medicine, University of Porto, Porto, Portugal; 3 Department of Obstetrics and Gynaecology, Centro Hospitalar São João, Porto Portugal


BACKGROND: Some studies have shown increased risk for neonatal morbidity and mortality with increasing maternal age. The objective of this study was to assess the influence of a maternal age of 35 years and older on the neonatal morbidities and mortality of very preterm infants.
METHODS: Obstetrical and neonatal data on mothers and preterm infants with gestational age 24 to 30 weeks, born during 2015 and 2016 after a surveilled pregnancy at 11 portuguese level III centers were analyzed according to a mother ́s age <35 years versus ≥35. Statistical analysis was performed using IBM SPSS® statistics 23 and a p- value < 0.05 was considered significant.
RESULTS: A total of 415 mothers and 499 infants were included; 340 (68.1%) infants were delivered to mothers < 35 years old and 159 (31.9%) to mothers ≥35. There were no differences in birthweight, gestational age and gender in both groups of preterm infants. Rupture of membranes over 18 hours and chronic hypertension with superimposed preeclampsia were significantly more frequent in mothers ≥ 35 years. Cystic periventricular leukomalacia (cPVL) assessed by cranial ultrasound was significantly more prevalent in infants delivered to mothers ≥35 years. The multivariate analysis by logistic regression revealed an association between cPVL and a maternal age ≥ 35 years (OR = 2.34, 95%CI:1.20-4.54; p = 0.012).
CONCLUSIONS: Our study revealed a significant association between a maternal age ≥35 years and echographic cPVL in preterm infants below 30 weeks of gestational age.

KEY WORDS: Maternal age; Cystic periventricular leukomalacia; Very preterm newborn

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