High Lateral STEMI

High lateral STEMI

Definitions

• ST elevation primarily localised to leads I and aVL is referred to as a high lateral STEMI.
• It is usually associated with reciprocal ST depression and T wave inversion in the inferior leads.

Culprit vessels

• Occlusion of the first diagonal branch (D1) of the left anterior descending artery (LAD) may produce isolated ST elevation in I and aVL
• Occlusion of the circumflex artery may cause ST elevation in I, aVL along with leads V5-6.

Acknowledgements

This ECG was reproduced from Dr Smith’s ECG Blog.

Related Topics

• Inferior STEMI
• Lateral STEMI
• Posterior infarction
• Right ventricular infarction

Further Reading

• ECG BASICS — Waves, Intervals, Segments and Clinical Interpretation
• ECG CLINICAL CASES — Your favourite ECG’s placed in clinical context with a challenging Q&A approach
• ECG and Cardiology Eponymous Syndromes — Cheats guide to eponymous emancipation
• ECG Exam Template — a framework for the FACEM part 2 exam.
• ECG Reference Sites on the WEB — the best of the rest

Author Credits

References

• Surawicz B, Knilans T. Chou’s Electrocardiography in Clinical Practice (6th edition), Saunders 2008.