ACLS Revision: Is this Anteroseptal ischemia or Posterior MI?

Posterior MI

  • 4-10% of STEMIs are isolated posterior STEMI
  • Most common type of missed MIoften misdiagnosed as NSTEMI
  • The triad of ST depressions, upright Ts, and tall R waves (basically the equivalent of Q-waves) in V1-3 is suggestive of a Posterior MI
  • Only 30% are revascularized in 90 minutes
  • Usually associated with inferior or lateral MI due to RCA or circumflex occlusion

Emergency Medicine Kenya Foundation

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