STAT ECG Diagnoses: what to consider when dealing with grouped or clumped beats causing irregular rhythms

ECG Weekly Workout with Dr. Amal Mattu


A 95-year-old female presents to the ED with vomiting and abdominal discomfort. The following ECG is obtained:

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

  1. What ECG abnormalities do you see?
  2. What is the rhythm?
  3. What is your differential diagnosis for clumped or grouped beats?