This ECG is from an elderly woman who presented with several hours of chest pain radiating to the back.

This ECG shows flat T waves in aVL but otherwise normal. Troponin was elevated. CT showed no dissection but an area of transmural ischemia. Serial ECGs showed no change. The cause was an occluded OM1.

This ECG is from a woman in her 80s who presented with a couple of days of shortness of breath, weakness and diaphoresis.

This ECG shows ventricular paced rhythm with concordant ST elevation V5-6 and concordant ST depression in V3. The cause was an occlusion of the circumflex.

This ECG is from a man in his 50s who presented with intermittent chest pain and shortness of breath for the past 3 days with vomiting.

This ECG shows RBBB with inferior and lateral ST elevation due to an acute MI (occluded OM2).

This ECG is from an ECG from a patient of unknown age, recorded just before the patient went into VF arrest.

This ECG shows massive concave ST elevation in inferior and lateral leads with ST depression in V2. There is also first degree heart block. The most likely cause was an acute MI.

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.

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.

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

This ECG shows acute infero-postero-lateral STEMI.

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.

This ECG is from a man in his 80s who presented with chest pain and shortness of breath.

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.

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.

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.