Heart rhythm : the official journal of the Heart Rhythm Society
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Randomized Controlled Trial Multicenter Study Comparative Study
Clinical significance of ventricular tachyarrhythmias in patients treated with CRT-D.
Data on the outcome of cardiac resynchronization therapy with defibrillator (CRT-D) in patients developing ventricular arrhythmias are limited. ⋯ Slow VT episodes are predictive of subsequent fast VT/VF. Slow VT and fast VT/VF episodes in CRT-D patients are associated with an increased risk of subsequent HF/death. CRT-D-treated LBBB patients with slow VTs have a significantly higher risk of mortality.