Objective: To explore the association between chorioamnionitis and brain injury in preterm infants.
Methods: A total of 88 preterm infants (28-34 weeks), who were born between June 2008 and June 2011, were divided into a case group (n=41) and a control group (n=47) according to whether or not they had chorioamnionitis. All the infants were examined by brain ultrasonography periodically after birth and underwent brain diffusion weighted imaging (DWI) between 3 and 7 days after birth. The two groups were compared in terms of the incidence of periventricular leukomalacia (PVL) and periventricular and intraventricular hemorrhage (PVH-IVH) by brain magnetic resonance imaging (MRI) at the corrected gestational age of 40 weeks.
Results: There was statistical significance in the incidence of PVL between the case and the control groups (32% vs 6%; P<0.05), but no significant difference in the incidence of PVH-IVH between the two groups (27% vs 23%; P>0.05).
Conclusions: Chorioamnionitis is associated with brain injury in preterm infants, increasing the incidence of PVL but having little influence over the incidence of PVH-IVH.
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