Key result
Magnitude-squared coherence differentiates monomorphic VT from polymorphic VT and VF, outperforming rate or irregularity.
Why the study?
Implantable devices with multiple therapy modes require methods to differentiate various ventricular tachyarrhythmias for appropriate treatment.
Can magnitude-squared coherence, ventricular rate, and irregularity of cycle length differentiate various ventricular tachyarrhythmias?
Population
15 patients with 45 episodes of induced ventricular tachyarrhythmia
Comparison
Magnitude-squared coherence vs ventricular rate vs irregularity of cycle length for arrhythmia analysis
Design
Observational study
Authors
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Magnitude-squared coherence is a superior method for differentiating monomorphic ventricular tachycardia from polymorphic ventricular tachycardia and ventricular fibrillation compared to rate or cycle length irregularity.
Observational (n=15)
Can magnitude-squared coherence, ventricular rate, and irregularity of cycle length differentiate various ventricular tachyarrhythmias?
ROPELLA et al. (1990) conducted an observational in Induced ventricular tachyarrhythmia (n=15). Magnitude-squared coherence vs. Ventricular rate and irregularity of cycle length was evaluated on Differentiation of monomorphic ventricular tachycardia from polymorphic ventricular tachycardia and ventricular fibrillation. Mean magnitude-squared coherence successfully differentiated monomorphic ventricular tachycardia from polymorphic ventricular tachycardia and ventricular fibrillation, unlike rate or irregularity.
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