Inferior myocardial infarction

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: Inferior MI

EKG Examples

Shown below is an EKG demonstrating ST elevation in the precordial and limb leads depicting acute inferior MI.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/Main_Page

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Shown below is an EKG with ST elevation in II, III, aVF (in III > II), ST depression in I, aVL, V2. Tall R in V2, otherwise normal QRS morphology. The findings are suggestive of acute posteroinferior MI.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/Main_Page

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Shown below is an EKG demonstrating changes during acute inferior MI depicting ST elevation in leads II, III and aVF.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/Main_Page

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Shown below is an EKG with ST depression in V1, V4, tall R  in V2. ST elevation in II, III, aVF, V5 and V6.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/Main_Page

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Shown below is an EKG with sinus bradycardia with first degree AV block and inferior-posterior-lateral myocardial infarction.

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Shown below is an EKG depicting sinus bradycardia with inferior-lateral myocardial infarction.

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Shown below is an EKG illustrating inferior-posterior myocardial infarction with complete AV block and ventricular escape rhythm with RBBB pattern and left axis, followed by sinus rhythm.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/Main_Page

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Shown below is an EKG demonstrating atrial fibrillation and inferior-posterior myocardial infarction.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/Main_Page

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Shown below is an EKG demonstrating inferior-posterior-lateral myocardial infarction with a nodal escape rhythm

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Shown below is an EKG demonstrating RBBB and inferior MI. Note to left axis deviation.

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Shown below is an EKG demonstrating lead V4R in a patient with RBBB and inferior MI, which clearly shows ST elevation.

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Shown below is an EKG demonstrating atrial fibrillation with inferior-posterior-lateral myocardial infarction and incomplete right bundle branch block. Lead I shows ST depression, suggestive of right coronary artery involvement.

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Shown below is an EKG showing ST elevation in inferior leads.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/File:De-Ami0007.jpg

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Shown below is an EKG showing ST elevation MI.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/File:De-KJcasus13.jpg

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Shown below is an EKG showing ST elevation MI.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/File:De-KJcasus16.jpg

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Shown below is an EKG showing ST elevation in inferior leads.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/File:De-Ami0011.jpg

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Shown below is an EKG showing ST elevation MI.

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/File:De-Ami0010.jpg

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Shown below is an EKG demonstrating sinus rhythm. The QRS shows Q waves in the inferior leads which are wide (>30ms) and about 25% of the QRS height in aVF. There is also slight ST elevation in the inferior leads and T wave inversion. The EKG suggests an inferior wall infarction, probably old. (the best way to determine "old" is to see a previous cardiogram).

Copyleft image obtained courtesy of, http://en.ecgpedia.org/wiki/Main_Page

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Shown below is an EKG demonstrating ST elevation in leads II, III and aVF and ST depression in leads V1, V2 and V3 depicting a posterior MI.

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