This cardiology case report from Brady Pregerson, MD, features a patient in their early 70s presenting to the hospital with reports of shortness of breath, palpitations, and chest pain. Can you determine the correct diagnosis?
A patient in their early 70s presents to the hospital with shortness of breath, palpitations, and chest pain starting around 9 AM. The chest pain was left-sided, radiated to the left arm, was nonpleuritic, and lasted for about 2 hours before it gradually resolved. She denies any pain on inspiration, leg swelling or pain, syncope, fever, cough, or other complaints.
Vital signs are normal except for tachycardia. The physical exam is otherwise normal.
An ECG is Performed:
What is the most likely cause of the ECG findings in this patient?