Although mortality following congenital heart surgery has decreased signifi
cantly in recent decades, there is a growing recognition of adverse neurolo
gic sequelae in some survivors. The cause of neurologic and cognitive impai
rment in this population seems to be multifactorial, with many abnormalitie
s detected in patients before surgery. Follow-up studies have demonstrated
normal neurodevelopmental outcome in most survivors of complex heart surger
y. Certain patient groups seem to be at increased risk. Recent advances in
medical and surgical management are likely to improve outcome for these hig
h-risk patients.