Since its first clinical application 30 years ago, intra-aortic balloon pum
ping (IABP) has become the most widely applied mechanical circulatory assis
t method. Following dissappointing initial results in patients with cardiog
enic shock after acute myocardial infarction, IABP has been preferentially
used for treatment of post cardiac surgery low output syndrome. However, in
recent years IABP use appears to be changing mainly due to increased use i
n the setting of acute myocardial ischemia/infarction associated with inter
ventional cardiology, as well as trends for both overall increasing periope
rative IABP use and relatively increasing preoperative use in high risk pat
ients undergoing cardiac surgery. Despite the superiority of ventricular as
sist devices (VADs) in terms of circulatory support, IABP remains the clini
cian's first choice in postcardiotomy low output syndrome either alone or i
n combination with VAD's. Although IABP-related mortality and complication
rate are declining in recent years, it has to be emphasized that IABP is st
ill associated with substantial mortality and morbidity. However, the avail
able data suggest that early IABP use significantly reduces mortality and m
orbidity in both cardiac surgery and cardiology patients. In addition, stud
ies have shown that aggressive IABP use is "cost-effective" at least in sel
ected patients due to both shorter hospital stay and complication reduction
. Thus, the available 30 years experience appears to justify a more liberal
IABP use in both cardiac surgery and cardiology.