Heart Blocks Quiz 16 Answer

1. Sinus tachycardia
2. Anterior myocardial infarction
3. Left anterior fascicular block

The ST elevation on this ECG is much more subtle than frequently seen during an anterior MI which can cause "tombstoning" (see review below), however there is 2 mm of ST elevation in leads V2 and V3. This represented an acute occlusion of the left anterior descending coronary artery in the mid portion, after a major septal branch (thus V1 is not involved) and after a large diagonal branch (thus there is no lateral extension making V5 and V6 appear normal).

Related Topic Reviews: Sinus Tachycardia, Anterior MI ECG, Left Anterior Fascicular Block