Differential Diagnoses: narrow complex regular tachycardias

ECG Weekly Workout with Dr. Amal Mattu


A 64-year-old man presents with palpitations. The following ECG is obtained:

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

  1. What ECG abnormalities do you notice?
  2. What is your differential for narrow complex regular tachycardia?
  3. What is the rhythm?