The neurologic complications and neurodevelopmental sequelae of neonat
al extracorporeal membrane oxygenation (ECMO) are discussed. The labor
atory and clinical studies that may be of prognostic significance in t
erm of near-term neonates treated with venoarterial ECMO are reviewed.
Pathophysiologic mechanisms associated with cardiorespiratory failure
and its treatment before and during ECMO that may contribute to an ad
verse outcome are reviewed. The potential advantages of venovenous com
pared with venoarterial ECMO are considered, and the need for further
research is emphasized.