Narrow Complex Tachycardia: sinus tachycardia, atrial flutter, or SVT?

UMEM Potpourri ECG Cases with Dr. Amal Mattu

A 52-year-old man presents to the emergency department with palpitations and is found to be tachycardic. The following ECG is obtained on arrival:

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

  1. What is the heart rate?
  2. What is your rhythm diagnosis?