Literature Review: QRS fragmentation and pseudonormalization of T waves

Emergency Cardiology Literature Review & Updates with Dr. Amal Mattu


A 64-year-old male with PMHx of HTN, DM, and obesity presents with chest pain radiating to the left arm. The following ECG is obtained, and compared to a previous ECG that showed lateral T wave inversions:

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

  1. What ECG abnormalities do you notice?
  2. What is pseudonormalization of T waves? 
  3. What is the clinical significance of the finding and your suspected diagnosis?