The Bix rule in narrow complex tachycardia

ECG Weekly Workout with Dr. Amal Mattu


A 63-year-old man is brought in by EMS to the ED with palpitations. The following prehospital ECG is obtained:

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

  1. What ECG abnormalities do you notice?
  2. What are 3 possible differentials for this narrow complex tachycardia?
  3. How would you treat this patient?