What are the risk factors for malignant arrhythmias in patients with left ventricular ring-like scar?
In patients with LV ring-like scar, specific ECG abnormalities (anterior Q waves, QRS prolongation) and increased LVEDVi can identify those at high risk for malignant arrhythmias.
In this study, the LV ring-like scar phenotype was associated with a high rate of malignant arrhythmias in presence of anterior Q waves, QRS prolongation, and increased LVEDVi. A normal ECG identified a lower risk sub-group.
Parisi et al. (Fri,) studied this question.