What is tombstoning in ST elevation and what does it indicate?

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Multiple Choice

What is tombstoning in ST elevation and what does it indicate?

ST-segment elevation patterns reveal the extent and type of myocardial ischemia. Tombstoning describes very large, upright, flat-topped ST elevations that rise sharply from the baseline and extend into the T wave in the leads over the involved area, giving a tombstone-like appearance. This morphology signals acute transmural (full-thickness) myocardial injury from coronary occlusion, i.e., a STEMI, and it implies a high likelihood of ongoing myocardial damage and the need for urgent reperfusion therapy. Other patterns don’t fit this urgent picture: small ST elevations can occur with benign early repolarization or minor issues, horizontal ST depression points to subendocardial ischemia, and Q waves usually reflect established infarction rather than an acute STEMI presentation.

ST-segment elevation patterns reveal the extent and type of myocardial ischemia. Tombstoning describes very large, upright, flat-topped ST elevations that rise sharply from the baseline and extend into the T wave in the leads over the involved area, giving a tombstone-like appearance. This morphology signals acute transmural (full-thickness) myocardial injury from coronary occlusion, i.e., a STEMI, and it implies a high likelihood of ongoing myocardial damage and the need for urgent reperfusion therapy.

Other patterns don’t fit this urgent picture: small ST elevations can occur with benign early repolarization or minor issues, horizontal ST depression points to subendocardial ischemia, and Q waves usually reflect established infarction rather than an acute STEMI presentation.

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