Torsades: Adjacent and Triggering Electrocardiographic Events
Highlights
- Early afterdepolarizations are the hallmark of one type of triggered automaticity. A long previous cycle (the pause) increases the amplitude of the early hump. If an EAD reaches threshold, a premature ventricular complexe (PVC) will appear. If this process becomes regenerative, each afterdepolarization producing yet another threshold-attaining EAD, TdP is the result (View Highlight)
- The precise events during TdP almost certainly involve gross dispersion of repolarization across the myocardium, including the possibility of migrating macroreentry pathways (View Highlight)