ECG Challenge: What Does This Tracing Reveal About the Pacing?

Philip J. Podrid, MD

September 11, 2017

A 75-year-old man with a history of a dilated cardiomyopathy and a left ventricular ejection fraction of 30% presents to his cardiologist for a routine visit several weeks after receiving an implantable cardioverter defibrillator. A 12-lead ECG is obtained and the findings prompt the cardiologist to contact the electrophysiology specialist who inserted the device. Why?

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Figure 1.

Courtesy of Dr Podrid.

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Cite this: ECG Challenge: What Does This Tracing Reveal About the Pacing? - Medscape - Sep 11, 2017.

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ECG Challenge: What Does This Tracing Reveal About the Pacing?

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Authors and Disclosures

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Philip J. Podrid, MD

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