in this review of the current literature, we discuss whether antenatal
magnesium sulfate (MgSO4) therapy should be recommended for the preve
ntion of neonatal periventricular echoabnormalities (PVEA) and subsequ
ent cerebral palsy (CP) in preterm infants. In two studies on MgSO4 an
d CP, a significant risk reduction was present, which could not be con
firmed by a third, In only one of three separate studies on MgSO4 and
PVEA, those exposed to MgSO4 were at decreased PVEA-risk. We discuss t
he methodological problems arising from small study size, univariate a
nalysis, confounding by indication, and residual confounding, and conc
lude that no recommendation on antenatai MgSO4 solely for prevention o
f CP in preterm infants can yet be given.