Which pattern localizes STEMI to the anterior wall?

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Multiple Choice

Which pattern localizes STEMI to the anterior wall?

Anterior wall STEMI is identified by ST elevations in the anterior precordial leads V1–V4, because these leads view the front surface of the left ventricle supplied mainly by the LAD. Often there are reciprocal ST depressions in the inferior leads (II, III, aVF) reflecting the opposite vector of injury. This pattern localizes the infarct to the anterior wall. In contrast, inferior-wall infarcts show ST elevations in II, III, and aVF; high lateral infarcts show elevations in I and aVL; posterior infarcts produce ST depressions in V1–V3 with reciprocal changes in the anterior leads.

Anterior wall STEMI is identified by ST elevations in the anterior precordial leads V1–V4, because these leads view the front surface of the left ventricle supplied mainly by the LAD. Often there are reciprocal ST depressions in the inferior leads (II, III, aVF) reflecting the opposite vector of injury. This pattern localizes the infarct to the anterior wall. In contrast, inferior-wall infarcts show ST elevations in II, III, and aVF; high lateral infarcts show elevations in I and aVL; posterior infarcts produce ST depressions in V1–V3 with reciprocal changes in the anterior leads.

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