Five preterm, very low birthweight infants with severe hypotension and adre
nocortical insufficiency are described. The profound hypotension was resist
ant to volume expansion and inotrope treatment, but responded promptly to c
orticosteroid treatment. A human corticotrophin releasing hormone (hCRH) te
st performed before corticosteroid treatment showed adequate pituitary resp
onse, and the endocrine dysfunction was identified at the adrenal level. Co
rticosteroid treatment should be considered and could be life saving in sev
erely hypotensive preterm infants who do not respond to conventional treatm
ent with volume expanders and inotropes.