ECG Quest > Ischemia > Basic STEMI localisation > Acute Lateral MI

Acute Lateral MI

An acute Lateral MI features signs of coronary occlusion (hyperacute T waves, ST elevation, Q formation) in the lateral leads (V5, V6, I, aVL) along with reciprocal changes in III and aVF. There may also be anterior infarction or posterior infarction. The culprit can be LAD (anterolateral), left circumflex (inferior-posterior-lateral) or smaller branches (isolated lateral).

See also: Basic STEMI localisation

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In the ECGquest archives, this ECG has been tagged with: - Concordant ST depression in V1-V3 Excessive discordant ST elevation Atrial pacemaker Ventricular pacemaker Acute Inferior MI Acute Lateral MI Acute Posterior MI Positive Sgarbossa criteria 12-Lead Dr Smith's ECG Blog CC BY-NC
Can you see through this paced rhythm?

This ECG is from an elderly woman who presented with 2 hours of chest pain on a background of multiple stents, a pacemaker, stroke and COPD.

This ECG shows paced rhythm with excessively discordant ST segments (modified Sgarbossa positive). The cause was a 95% thrombotic lesion of the RCA.

In the ECGquest archives, this ECG has been tagged with: - Abdominal pain Chest pain Reciprocal ST depression ST elevation in aVL Acute Lateral MI Acute Posterior MI 12-Lead Dr Smith's ECG Blog CC BY-NC
Epigastric pain radiating to the chest for 18 hours. ECG makes the Dx. Troponin makes the Dx. CT makes the Dx!

This ECG is from a middle aged man who presented with 18 hours of epigastric pain radiating to the chest.

This ECG shows ST elevation in aVL with reciprocal ST depression in inferior leads and V3-4, consistent with high lateral MI and posterior involvement.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Lateral ST elevation Acute Lateral MI 12-Lead ECG Interpretation CC-BY-NC-SA
ECG Blog #162 (STEMI – Coronary Circulation – Culprit – BBB)

This ECG is from an older woman who presented with new-onset chest pain.

This ECG shows acute infero-postero-lateral STEMI.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Normal Axis Anterior ST elevation Acute Inferior MI Acute Lateral MI 12-Lead Dr Smith's ECG Blog CC BY-NC
Anterior ST Elevation and a High Initial Troponin.

This ECG is from a man in his 40s who presented with intermittent left sided pleuritic chest pain for 3 days.

This ECG shows anterior ST elevation, but there was no anterior wall motion abnormality on echo - there was an inferolateral regional wall motion abnormality instead. Initial troponin was very high. He was found to have a 100% obtuse marginal occlusion. The ECG did not evolve over the next few days, suggesting that it was the patient's baseline ECG.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea Electrode misplacement Normal Axis Lateral ST elevation Acute Lateral MI 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
A man in his 80s with chest pain
In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea Electrode misplacement Left Axis Deviation Lateral ST elevation LAFB RBBB Acute Anterior MI Acute Lateral MI 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
A man in his 80s with chest pain

This ECG is from a man in his 80s who presented with chest pain and shortness of breath. This was the repeat ECG just before he arrested.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Anterior ST elevation Lateral ST elevation Pathological Q waves Acute Anterior MI Acute Lateral MI 12-Lead Dr Smith's ECG Blog CC BY-NC
Anterior STEMI and multiform PVCs with Narrow Coupling Interval. When to give beta blockers in acute MI?

This ECG is from a middle aged man presented with 45 minutes of chest discomfort on a background of hyperlipidemia. This was his initial ECG.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Anterior ST elevation Pathological Q waves Acute Anterior MI Acute Lateral MI 12-Lead Dr Smith's ECG Blog CC BY-NC
Anterior STEMI and multiform PVCs with Narrow Coupling Interval. When to give beta blockers in acute MI? – repeat 24h later

This ECG is from a middle aged man presented with 45 minutes of chest discomfort on a background of hyperlipidemia. This was his repeat ECG 24h later, after stenting of an LAD occlusion.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Lateral ST elevation Reciprocal ST depression Acute Lateral MI 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog Dr Ken Grauer CC BY-NC
A “normal ECG” on a busy night
In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea Left Axis Deviation Regular Tachycardia Excessive discordant ST depression. Excessive discordant ST elevation R in aVR Wide QRS Ventricular tachycardia Acute Lateral MI Acute Posterior MI 12-Lead Dr Pendell Meyers Dr Smith's ECG Blog Dr Ken Grauer Dr Stephen W. Smith CC BY-NC
Posterolateral OMI resulting in VT, then R-on-T phenomenon and VF – repeat after sudden worsening of shortness of breath.

This ECG is from a man in his 50s who presented with 1 hour of chest pain and shortness of breath. This was his second ECG after he suddenly became more short of breath.

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