ECG Basics & Fundamentals: Crochetage pattern of QRS notching in the inferior leads

HPI

HPI: A 27-year-old woman was having a routine physical exam performed, when her physician noted a systolic murmur at the left upper sternal border. The following ECG is obtained:

Case ECG

Before watching this week's video, ask yourself these questions:

What ECG abnormalities do you notice?
What is the most likely cause of the notching seen in the inferior leads?
What is the next best diagnostic test?

Presenting ECG — ECG Basics & Fundamentals: Crochetage pattern of QRS notching in the inferior leads

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