This cardiology case report from Brady Pregerson, MD, features a man in his late 80s presenting to urgent care with multiple episodes of near syncope in the past 3 days. Check out the ECG and determine the correct diagnosis!
A patient in their late 80s presents to the urgent care with 2 episodes of near syncope each day for the past 3 days. The episodes are not triggered by activity, standing, or anything else he can identify. He denies palpitations, chest pain, SOB, leg swelling or pain, fever, cough, or other complaints.
Vital signs are normal. The physical exam is also normal.
An ECG is done:
What is the most likely cause of the ECG findings in this patient?