STAT ECG Diagnoses: knowing what you are looking for when differentiating the different types of regular wide complex tachycardias

ECG Weekly Workout with Dr. Amal Mattu


A 79-year-old male is brought into the ED by EMS with palpitations and lightheadedness while doing light yardwork. He is found to have a wide complex tachycardia at 155 bpm, with a normal blood pressure, normal mental status, and clear lung sounds. The following prehospital ECG was obtained:

Before watching the video, look closely at this ECG and ask yourself these questions:

  1. What is the rhythm?
  2. What is your differential diagnosis and most likely cause?
  3. How would you manage this rhythm?