The Association between Hemodynamically Significant Patent Ductus Arteriosus and 25-Hydroxyvitamin D Levels in Preterm Infants <= 32 Weeks Gestational Age

IntroductionWe investigated the relationship between 25-hydroxyvitamin D (25-OHD) levels and the development of hemodynamically significant patent ductus arteriosus (hsPDA) in preterm infants.MethodsNewborns having a gestational age (GA) of <= 32 weeks with hsPDA consisted the study group (n = 25, 20%), while newborns <= 32 weeks of GA without PDA/hsPDA were the control group (n = 97, 80%).ResultsThe study group had lower GA, birth weight (BW) and 25-OHD levels (p < 0.0001, p = 0.002 and p = 0.003, respectively). After adjusting for the effects of GA, BW and the presence of respiratory distress syndrome, multivariable logistic regression analyses demonstrated that preterm infants with low 25-OHD levels were 6.407 (95% CI: 1.656-24.788, p = 0.007) times more likely to experience hsPDA than preterm infants with normal 25-OHD levels. Every 1 ng/mL increase in 25-OHD levels decreased the probability of hsPDA (OR: 0.894, 95% CI: 0.816-0.98, p = 0.016). Conclusion: Low 25-OHD levels may have a role in the development of hsPDA.