Recurrent syncope with a short PR interval

ECG Weekly Workout with Dr. Amal Mattu


A 48-year-old man presents with an episode of palpitations and near-syncope. He has had many similar episodes in the past without previous evaluation. Currently having mild palpitations with no other symptoms. 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 the rhythm?
    3. What is the most likely diagnosis?