HPI: A 45-year-old woman presents with 1 week of frequent palpitations. She reports mild dyspnea and lightheadedness without any associated chest pain. She denies using caffeine, alcohol or illicit drugs. Family history is significant for unspecified arrhythmias in her father and brother. Vital signs and physical exam are normal. The following ECG was obtained:

Case ECG


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

  1. What ECG abnormalities do you notice?
  2. Is this atrial fibrillation?
  3. Is there an accessory pathway?
  4. How would you treat this patient?




Case Interpretation

Review Key Teaching Points



Notes: Questions for Amal? Email him at amalmattu@comcast.net or find him on Twitter @amalmattu.

Kudos: Big thanks to Drs. Alfred Goodfellow, Raghu Venugopal & Nicolás Pineda for sharing this week’s cases!