Futility on primary endpoint.Study confounded by statistically significant differences between the two arms re: atherectomy, duration of support.

The IMPELLA® 2.5 System will be superior to Intra Aortic Balloon Pump in preventing the composite rate of major adverse events during and after the PCI procedure.

Inclusion Criteria:

• Informed consent

• Subject is indicated for a NON emergent percutaneous treatment of at least on de novo or restenotic lesion in a native coronary vessel or bypass graft.

• Patient presents with:

  • A compromised Ejection Fraction
  • Intervention on the last patent coronary conduit
  • Intervention on an unprotected left main artery or
  • Patient presenting with triple vessel disease.

Exclusion Criteria:

• ST elevation M.I.
• Pre procedure cardiac arrest within 24 hours.
• Subject in cardiogenic shock