A 55-year-old man with a history of mild aortic stenosis presents to his cardiologist for a routine exam. He says he has no cardiac symptoms and is physically active. Physical examination is unremarkable except for a Grade 1 harsh mid-systolic murmur. Pulses and vital signs are normal. A 12-lead ECG is obtained (Figure 1).
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Cite this: ECG Challenge: What's Behind This Man's Mid-systolic Murmur? - Medscape - Feb 14, 2022.