Intraaortic balloon support for myocardial infarction with cardiogenic shock
IABP-SHOCK II trial design and results
Design
Multicentre randomised controlled trial
Treatment
Intra-aortic balloon counterpulsation
Control
No balloon pump
Population
598 patients with cardiogenic shock complicating acute myocardial infarction, with planned early revascularisation
Follow-up
12 months
Primary endpoint
30-day all-cause mortality
Result
At 30 days, 119 of 300 (39.7%) in the balloon pump group and 123 of 298 (41.3%) in the control group had died. Major bleeding did not differ, 3.3% with the balloon pump versus 4.4% without.
Secondary endpoints
Reinfarction, stroke, bleeding, renal failure, length of stay
The use of intraaortic balloon counterpulsation did not significantly reduce 30-day mortality in patients with cardiogenic shock complicating acute myocardial infarction for whom an early revascularization strategy was planned.
The trial authors, in the published abstract
How it has aged
Removed a device that had been in routine use for decades on physiological reasoning alone. It set the pattern that ECMO-CS and ECLS-SHOCK followed, and makes DanGer Shock's positive result all the more notable.
Publications
Intraaortic balloon support for myocardial infarction with cardiogenic shock
Thiele H, Zeymer U, Neumann FJ, et al. Intraaortic balloon support for myocardial infarction with cardiogenic shock. N Engl J Med 2012 Oct 4;367(14):1287-96.
30-day mortality 39.7% versus 41.3%
No difference in reinfarction, stroke or renal failure