Answer

Left anterior fascicular block: Note the left axis deviation (axis of -49°) and the small Q waves in leads I and aVL, which demonstrate the fascicular block.

Other findings include the poor R wave progression and left ventricular hypertrophy, as based on voltage criteria, and an R wave in aVL of more than 11 mV.

BACKGROUND

An 82-year-old patient presents to the hospital with chest pain. What heart block is shown in the ECG?

Hint

The axis seems to be deviated.

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