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MODULE 13 EMQs

EMQ 1.
 
A 55 year old man presents with central crushing chest pain.
Picture
Answer: right coronary artery infarct
 
Comment: this ECF evinces inferolateral ischaemia, with associated depression in I and aVL. The fact that the ST elevation is greatest in lead III implies a right sided current of injury originating from a right coronary artery infarct.

EMQ 2.
 
A 66 year old woman presents with central crushing chest pain.
Picture
Answer: Circumflex infarct
 
Comment - this patient has inferior ischaemia, and reciprocal changes in the anterior leads suggesting an element of posterior ischaemia, occurring from acute occlusion of the circumflex artery.

EMQ 3.
 
A 78 year old man presents with acute crushing central chest pain.
Picture
Answer: LAD infarct
 
Comment: this patient has clear changes in the anterior leads, the territory of the LAD. This particular ECG is complicated by a right bundle branch block.

EMQ 4.

 
A 64 year old man presents with crushing central chest pain.
Picture
Answer: right ventricular infarct.
 
Comment: there are several important points about this ECG. The asymmetric inferior ST elevation implies a right coronary artery infarct, but the isolated ST elevation in V1 strongly implies involvement of the right ventricle. A right sided ECG should be performed.
​

​EMQ 5.
 

A 55 year old man presents with central chest pain a week after being discharged post PCI for a NSTEMI.
Picture
Answer: Dressler’s syndrome
 
Comment: this ECG shows non anatomic saddle shaped ST elevation. In the setting of a recent MI this is strongly suggestive of Dressler’s syndrome. 

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