Post-cardiac arrest ECGs: can you guess the cause of arrest based off this ECG?

ECG Weekly Workout with Dr. Amal Mattu


A 56-year-old man is brought in by ambulance after witnessed cardiac arrest. He reportedly had shortness of breath and malaise prior to collapse. The following post ROSC ECG is obtained:

Before watching this week’s video, ask yourself these questions:

  1. What ECG abnormalities do you notice?
  2. He has a recurrent arrest shortly afterwards, how would you manage the patient?
  3. What is the most likely diagnosis?