Risk Factors for Neurodevelopmental Impairment at 2- and 5-Years Corrected Age in Preterm Infants with Established Bronchopulmonary Dysplasia.

INTRODUCTION: The objective of this study was to identify risk factors for neurodevelopmental impairment (NDI) at 2- and 5-years corrected age (CA) in a cohort of preterm infants with established bronchopulmonary dysplasia (BPD). METHODS: This single-center retrospective cohort study included infants born between 2009 and 2016 at a gestational age (GA) <30 weeks with moderate or severe BPD at 36 weeks' postmenstrual age. Perinatal characteristics, (social) demographics, and comorbidities were collected from the electronic patient records. Odds ratios for NDI were calculated with univariate and multivariate logistic regression analyses adjusting for potential confounders. RESULTS: Of the 602 eligible infants, 123 infants were diagnosed with BPD. NDI was present in 30.3% and 56.1% at 2- and 5-years CA, respectively. The only independent risk factors associated with NDI in the multivariate analyses were birthweight (adjusted odds ratio [aOR] 0.74, 95% CI 0.57-0.95; aOR 0.70, 95% CI 0.54-0.91, respectively), small for GA (SGA) (aOR 3.25, 95% CI 1.09-9.61; aOR 5.44, 95% CI 1.62-18.2, respectively) at both time points, and male gender at 5-years CA (OR 2.49, 95% CI 1.11-5.57). CONCLUSION: Birthweight and SGA are independent risk factors for NDI at 2- and 5-years CA and male gender at 5-years CA in preterm infants with BPD. In contrast, well-known other risk factors for NDI in the general population of preterm infants, such as GA, maternal education, and neonatal comorbidities were not independently associated with NDI.

[Neonatal abstinence syndrome after maternal use of tramadol]. / Neonataal abstinentiesyndroom na maternaal tramadolgebruik.

BACKGROUND: Tramadol is an opioid with lipophilic characteristics that freely crosses the placenta. Due to the placental transfer, there is a risk of neonatal withdrawal symptoms. Therefore, chronic use during pregnancy is not advised. CASE DESCRIPTION: A 25-year-old pregnant woman, gravida 3, para 1, used tramadol 100 mg 3 times a day for chronic headache and migraine during this pregnancy. Because of the risk for neonatal abstinence syndrome, delivery took place in the hospital and the neonate had to stay at least 3 days for observation. The newborn developed neonatal withdrawal symptoms 36 hours after delivery. Treatment with phenobarbital was effective; 9 days after delivery the newborn was discharged without further treatment. CONCLUSION: When tramadol is used during pregnancy, there is a serious risk for neonatal abstinence syndrome. Phenobarbital proved to be effective for the treatment of neonatal tramadol withdrawal.