ECG Challenge: What Caused This Man's Atrial Arrhythmia?

Philip J. Podrid, MD


September 27, 2021

A 77-year-old man with a history of hypertension, treated with an angiotensin-converting-enzyme (ACE) inhibitor and beta-blocker, has a long history of atrial fibrillation with adequate rate control. He presents to his primary care provider for a routine physical examination, and a 12-lead ECG is obtained.

Figure 1.


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