Contributor: Jared Scott, MD

Educational Pearls:

EKGs look at different angles, or vectors, of the heart's electrical conduction as it travels through the heart. Knowing how to read these vectors is essential in diagnosing locations of cardiac pathologies
Leads II, III, and aVF follow an inferior path, so ST elevation in those leads indicates inferior involvement
Major complications more common with inferior STEMIs can include:
- hypotension which can be made worse by nitroglycerin
- Severe bradycardia due to SA/AV node involvement
Inferior STEMI, barring no hypotension or bradycardia, have better mortality than other types

References

Warner MJ, Tivakaran VS. Inferior Myocardial Infarction. 2020 Aug 8. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan–. PMID: 29262146.

Summarized by Jackson Roos, MS4 | Edited by Erik Verzemnieks, MD

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Podcast 629: Inferior STEMI

Emergency Medical Minute

Podcast 629: Inferior STEMI