Respiratory Trials·org

Cardiology in critical care · Mechanical support in cardiogenic shock

IABP-SHOCK II randomised trial

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