Increasing evidence supports the view that infants exposed to perinatal inf
ection are at increased risk for brain injury, We suggest that elevated cyt
okines in the amniotic fluid or in the fetal circulation be viewed as a hum
oral expression and that inflammatory cells in chorionic plate or umbilical
cord blood vessel walls be viewed as a morphologic expression of the fetal
inflammatory response. We discuss the evidence supporting the hypothesis t
hat the fetal inflammatory response contributes to neonatal brain injury an
d later developmental disability. Little support has been found for a mater
nal contribution. Intervention should be designed with the fetus in mind. C
urr Opin Pediatr 2000, 12:99-104 (C) 2000 Lippincott Williams & Wilkins, In
c.