Cardiology Case Report: Dyspnea on Exertion Playing Golf

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Our latest cardiology case report from Dr. Pregerson features a man in his mid-40s presenting to the hospital with dyspnea on exertion during golf the day before. Check out the ECG and determine the correct diagnosis!


A patient in his early-40’s presents to the hospital with DOE while playing golf. Normally he walks 18 holes w/o difficulty but yesterday he struggled the entire time. He denies syncope, palpitations, chest pain, fever, cough, leg swelling 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?