Knowledge Base

ECG in Acute Coronary Syndrome

Knowledge Base

title: "ECG in Acute Coronary Syndrome"

ECG in Acute Coronary Syndrome

Key Facts

ST elevation in II, III, aVF localises to an inferior infarct (often RCA).

Look for reciprocal ST depression in opposing leads to support STEMI diagnosis.

Overview

This article covers rapid localisation patterns and classic examples.

Quick localisation (high level)

  • Inferior: II, III, aVF
  • Anterior/septal: V1–V4
  • Lateral: I, aVL, V5–V6

Examples

Inferior STEMI (schematic)
Inferior STEMI (example ECG)— LITFL ECG Library (CC BY-NC-SA 4.0)

Sources

  • CC Bible
  • LITFL ECG Library

Test Your Knowledge

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ST (ST Segment) elevation in II, III and aVF most strongly localises infarction to which territory?
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Related Topics

See also: Acute Coronary Syndrome, Approach to Chest Pain