Umbilical vein catheterisation (UVC) should not routinely be used in t
he neonatal intensive care unit, and when it is used special precautio
ns should be taken and guidelines followed. We present an unusual comp
lication which occurred following use of an umbilical vein catheter in
a term neonate. This case highlights another potentially lethal compl
ication of UVC, and emphasises the risks associated with the procedure
. In order for the benefits of UVC to outweigh the risks, certain guid
elines are reviewed. The importance of confirming the position of the
catheter tip with both anteroposterior and lateral radiographs is emph
asised.