Which ECG criteria must prompt your suspicion for left main infarction?

  • ST elevation in aVR, if it is at least 0.1mV and higher than an elevation in V1 if present.
  • The amplitudes of ST elevations and ST depressions in all 12 leads are added to a total sum. The sum of all these ST segment alterations in all 12 leads is more than 18mm.
  • Presence of indirect infarction signs in II, III, and v3 to v5

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