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The information contained on this page is provided as general health information and is not intended to substitute as medical advice and direction from your physician or health care provider. Please direct any questions related to your health care provider. In an emergency, call 9-1-1 or go to the nearest emergency center.


Post myocardial infarction ECG wave tracings

Various phases can be seen through ECG wave tracings following a heart attack:

  • Hyperacute phase begins immediately after a heart attack
  • Fully evolved phase starts a few hours to days after a heart attack
  • Resolution phase appears a few weeks after a heart attack
  • Stabilized chronic phase is the last phase and typically has permanent pathological changes compared to a normal ECG tracing
Post myocardial infarction ECG wave tracings